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WID-SEC-W-2026-0850
Vulnerability from csaf_certbund - Published: 2026-03-24 23:00 - Updated: 2026-04-09 22:00Summary
Mozilla Firefox und Mozilla Thunderbird: Mehrere Schwachstellen
Severity
Hoch
Notes
Das BSI ist als Anbieter für die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch dafür verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgfältig im Einzelfall zu prüfen.
Produktbeschreibung: Firefox ist ein Open Source Web Browser.
Thunderbird ist ein Open Source E-Mail Client.
Angriff: Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Mozilla Firefox und Mozilla Thunderbird ausnutzen, um beliebigen Code auszuführen, um einen Denial of Service herbeizuführen, um Informationen offenzulegen, um Sicherheitsmechanismen zu umgehen, um den Benutzer zu täuschen und um nicht näher spezifizierte Auswirkungen zu erzielen.
Betroffene Betriebssysteme: - Android
- iPhoneOS
- Linux
- MacOS X
- UNIX
- Windows
References
{
"document": {
"aggregate_severity": {
"text": "hoch"
},
"category": "csaf_base",
"csaf_version": "2.0",
"distribution": {
"tlp": {
"label": "WHITE",
"url": "https://www.first.org/tlp/"
}
},
"lang": "de-DE",
"notes": [
{
"category": "legal_disclaimer",
"text": "Das BSI ist als Anbieter f\u00fcr die eigenen, zur Nutzung bereitgestellten Inhalte nach den allgemeinen Gesetzen verantwortlich. Nutzerinnen und Nutzer sind jedoch daf\u00fcr verantwortlich, die Verwendung und/oder die Umsetzung der mit den Inhalten bereitgestellten Informationen sorgf\u00e4ltig im Einzelfall zu pr\u00fcfen."
},
{
"category": "description",
"text": "Firefox ist ein Open Source Web Browser.\r\nThunderbird ist ein Open Source E-Mail Client.",
"title": "Produktbeschreibung"
},
{
"category": "summary",
"text": "Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Mozilla Firefox und Mozilla Thunderbird ausnutzen, um beliebigen Code auszuf\u00fchren, um einen Denial of Service herbeizuf\u00fchren, um Informationen offenzulegen, um Sicherheitsmechanismen zu umgehen, um den Benutzer zu t\u00e4uschen und um nicht n\u00e4her spezifizierte Auswirkungen zu erzielen.",
"title": "Angriff"
},
{
"category": "general",
"text": "- Android\n- iPhoneOS\n- Linux\n- MacOS X\n- UNIX\n- Windows",
"title": "Betroffene Betriebssysteme"
}
],
"publisher": {
"category": "other",
"contact_details": "csaf-provider@cert-bund.de",
"name": "Bundesamt f\u00fcr Sicherheit in der Informationstechnik",
"namespace": "https://www.bsi.bund.de"
},
"references": [
{
"category": "self",
"summary": "WID-SEC-W-2026-0850 - CSAF Version",
"url": "https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-0850.json"
},
{
"category": "self",
"summary": "WID-SEC-2026-0850 - Portal Version",
"url": "https://wid.cert-bund.de/portal/wid/securityadvisory?name=WID-SEC-2026-0850"
},
{
"category": "external",
"summary": "Mozilla Foundation Security Advisory MFSA 2026-20 vom 2026-03-24",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-20/"
},
{
"category": "external",
"summary": "Mozilla Foundation Security Advisory MFSA 2026-21 vom 2026-03-24",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-21/"
},
{
"category": "external",
"summary": "Mozilla Foundation Security Advisory MFSA 2026-22 vom 2026-03-24",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-22/"
},
{
"category": "external",
"summary": "Mozilla Foundation Security Advisory MFSA 2026-23 vom 2026-03-24",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-23/"
},
{
"category": "external",
"summary": "Mozilla Foundation Security Advisory MFSA 2026-24 vom 2026-03-24",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-24/"
},
{
"category": "external",
"summary": "openSUSE Security Update OPENSUSE-SU-2026:10413-1 vom 2026-03-25",
"url": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/Y7M6NU74R4Q7BLCQHUTUH3DFSFTPCPKT/"
},
{
"category": "external",
"summary": "Debian Security Advisory DSA-6178 vom 2026-03-25",
"url": "https://lists.debian.org/debian-security-announce/2026/msg00087.html"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:5932 vom 2026-03-26",
"url": "https://access.redhat.com/errata/RHSA-2026:5932"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:5931 vom 2026-03-26",
"url": "https://access.redhat.com/errata/RHSA-2026:5931"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:5930 vom 2026-03-26",
"url": "https://access.redhat.com/errata/RHSA-2026:5930"
},
{
"category": "external",
"summary": "Debian Security Advisory DSA-6179 vom 2026-03-26",
"url": "https://lists.debian.org/debian-security-announce/2026/msg00088.html"
},
{
"category": "external",
"summary": "Debian Security Advisory DLA-4510 vom 2026-03-26",
"url": "https://lists.debian.org/debian-lts-announce/2026/03/msg00014.html"
},
{
"category": "external",
"summary": "Debian Security Advisory DLA-4511 vom 2026-03-26",
"url": "https://lists.debian.org/debian-lts-announce/2026/03/msg00015.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:1126-1 vom 2026-03-28",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-March/025023.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:1127-1 vom 2026-03-28",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-March/025022.html"
},
{
"category": "external",
"summary": "Oracle Linux Security Advisory ELSA-2026-5930 vom 2026-03-27",
"url": "https://linux.oracle.com/errata/ELSA-2026-5930.html"
},
{
"category": "external",
"summary": "Oracle Linux Security Advisory ELSA-2026-5931 vom 2026-03-27",
"url": "https://linux.oracle.com/errata/ELSA-2026-5931.html"
},
{
"category": "external",
"summary": "Oracle Linux Security Advisory ELSA-2026-5932 vom 2026-03-27",
"url": "https://linux.oracle.com/errata/ELSA-2026-5932.html"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:6188 vom 2026-03-30",
"url": "https://access.redhat.com/errata/RHSA-2026:6188"
},
{
"category": "external",
"summary": "Oracle Linux Security Advisory ELSA-2026-6188 vom 2026-03-31",
"url": "https://linux.oracle.com/errata/ELSA-2026-6188.html"
},
{
"category": "external",
"summary": "openSUSE Security Update OPENSUSE-SU-2026:10447-1 vom 2026-03-31",
"url": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/ELMKS2KLVJGOTFRHFX4CFYYGKJCR3ZFX/"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:6342 vom 2026-04-01",
"url": "https://access.redhat.com/errata/RHSA-2026:6342"
},
{
"category": "external",
"summary": "Oracle Linux Security Advisory ELSA-2026-6342 vom 2026-04-01",
"url": "https://linux.oracle.com/errata/ELSA-2026-6342.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:1163-1 vom 2026-04-01",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-April/025116.html"
},
{
"category": "external",
"summary": "openSUSE Security Update OPENSUSE-SU-2026:10458-1 vom 2026-04-01",
"url": "https://lists.opensuse.org/archives/list/security-announce@lists.opensuse.org/thread/YYCV757JWWKCAIP63ZNZ7UWNGGZJPRIV/"
},
{
"category": "external",
"summary": "Oracle Linux Security Advisory ELSA-2026-6342 vom 2026-04-01",
"url": "http://linux.oracle.com/errata/ELSA-2026-6342.html"
},
{
"category": "external",
"summary": "Rocky Linux Security Advisory RLSA-2026:5932 vom 2026-04-07",
"url": "https://errata.build.resf.org/RLSA-2026:5932"
},
{
"category": "external",
"summary": "Rocky Linux Security Advisory RLSA-2026:5930 vom 2026-04-07",
"url": "https://errata.build.resf.org/RLSA-2026:5930"
},
{
"category": "external",
"summary": "Rocky Linux Security Advisory RLSA-2026:6188 vom 2026-04-07",
"url": "https://errata.build.resf.org/RLSA-2026:6188"
},
{
"category": "external",
"summary": "Red Hat Security Advisory RHSA-2026:6917 vom 2026-04-08",
"url": "https://access.redhat.com/errata/RHSA-2026:6917"
},
{
"category": "external",
"summary": "Oracle Linux Security Advisory ELSA-2026-6917 vom 2026-04-08",
"url": "https://linux.oracle.com/errata/ELSA-2026-6917.html"
},
{
"category": "external",
"summary": "SUSE Security Update SUSE-SU-2026:20978-1 vom 2026-04-09",
"url": "https://lists.suse.com/pipermail/sle-security-updates/2026-April/025184.html"
},
{
"category": "external",
"summary": "Rocky Linux Security Advisory RLSA-2026:5931 vom 2026-04-09",
"url": "https://errata.build.resf.org/RLSA-2026:5931"
},
{
"category": "external",
"summary": "Rocky Linux Security Advisory RLSA-2026:6342 vom 2026-04-09",
"url": "https://errata.build.resf.org/RLSA-2026:6342"
}
],
"source_lang": "en-US",
"title": "Mozilla Firefox und Mozilla Thunderbird: Mehrere Schwachstellen",
"tracking": {
"current_release_date": "2026-04-09T22:00:00.000+00:00",
"generator": {
"date": "2026-04-10T07:10:03.176+00:00",
"engine": {
"name": "BSI-WID",
"version": "1.5.0"
}
},
"id": "WID-SEC-W-2026-0850",
"initial_release_date": "2026-03-24T23:00:00.000+00:00",
"revision_history": [
{
"date": "2026-03-24T23:00:00.000+00:00",
"number": "1",
"summary": "Initiale Fassung"
},
{
"date": "2026-03-25T23:00:00.000+00:00",
"number": "2",
"summary": "Neue Updates von openSUSE und Debian aufgenommen"
},
{
"date": "2026-03-26T23:00:00.000+00:00",
"number": "3",
"summary": "Neue Updates von Debian aufgenommen"
},
{
"date": "2026-03-29T22:00:00.000+00:00",
"number": "4",
"summary": "Neue Updates von SUSE und Oracle Linux aufgenommen"
},
{
"date": "2026-03-30T22:00:00.000+00:00",
"number": "5",
"summary": "Neue Updates von Red Hat und Oracle Linux aufgenommen"
},
{
"date": "2026-03-31T22:00:00.000+00:00",
"number": "6",
"summary": "Neue Updates von openSUSE aufgenommen"
},
{
"date": "2026-04-01T22:00:00.000+00:00",
"number": "7",
"summary": "Neue Updates von Oracle Linux, SUSE und openSUSE aufgenommen"
},
{
"date": "2026-04-06T22:00:00.000+00:00",
"number": "8",
"summary": "Neue Updates von Rocky Enterprise Software Foundation und Zero Day Initiative aufgenommen"
},
{
"date": "2026-04-07T22:00:00.000+00:00",
"number": "9",
"summary": "Neue Updates von Rocky Enterprise Software Foundation, Red Hat und Oracle Linux aufgenommen"
},
{
"date": "2026-04-09T22:00:00.000+00:00",
"number": "10",
"summary": "Neue Updates von SUSE und Rocky Enterprise Software Foundation aufgenommen"
}
],
"status": "final",
"version": "10"
}
},
"product_tree": {
"branches": [
{
"branches": [
{
"category": "product_name",
"name": "Debian Linux",
"product": {
"name": "Debian Linux",
"product_id": "2951",
"product_identification_helper": {
"cpe": "cpe:/o:debian:debian_linux:-"
}
}
}
],
"category": "vendor",
"name": "Debian"
},
{
"branches": [
{
"branches": [
{
"category": "product_version_range",
"name": "\u003c149",
"product": {
"name": "Mozilla Firefox \u003c149",
"product_id": "T052084"
}
},
{
"category": "product_version",
"name": "149",
"product": {
"name": "Mozilla Firefox 149",
"product_id": "T052084-fixed",
"product_identification_helper": {
"cpe": "cpe:/a:mozilla:firefox:149"
}
}
}
],
"category": "product_name",
"name": "Firefox"
},
{
"branches": [
{
"category": "product_version_range",
"name": "\u003c115.34",
"product": {
"name": "Mozilla Firefox ESR \u003c115.34",
"product_id": "T052085"
}
},
{
"category": "product_version",
"name": "115.34",
"product": {
"name": "Mozilla Firefox ESR 115.34",
"product_id": "T052085-fixed",
"product_identification_helper": {
"cpe": "cpe:/a:mozilla:firefox_esr:115.34"
}
}
},
{
"category": "product_version_range",
"name": "\u003c140.9",
"product": {
"name": "Mozilla Firefox ESR \u003c140.9",
"product_id": "T052086"
}
},
{
"category": "product_version",
"name": "140.9",
"product": {
"name": "Mozilla Firefox ESR 140.9",
"product_id": "T052086-fixed",
"product_identification_helper": {
"cpe": "cpe:/a:mozilla:firefox_esr:140.9"
}
}
}
],
"category": "product_name",
"name": "Firefox ESR"
},
{
"branches": [
{
"category": "product_version_range",
"name": "\u003c149",
"product": {
"name": "Mozilla Thunderbird \u003c149",
"product_id": "T052087"
}
},
{
"category": "product_version",
"name": "149",
"product": {
"name": "Mozilla Thunderbird 149",
"product_id": "T052087-fixed",
"product_identification_helper": {
"cpe": "cpe:/a:mozilla:thunderbird:149"
}
}
},
{
"category": "product_version_range",
"name": "ESR \u003c140.9",
"product": {
"name": "Mozilla Thunderbird ESR \u003c140.9",
"product_id": "T052088"
}
},
{
"category": "product_version",
"name": "ESR 140.9",
"product": {
"name": "Mozilla Thunderbird ESR 140.9",
"product_id": "T052088-fixed",
"product_identification_helper": {
"cpe": "cpe:/a:mozilla:thunderbird:140.9::esr"
}
}
}
],
"category": "product_name",
"name": "Thunderbird"
}
],
"category": "vendor",
"name": "Mozilla"
},
{
"branches": [
{
"category": "product_name",
"name": "Oracle Linux",
"product": {
"name": "Oracle Linux",
"product_id": "T004914",
"product_identification_helper": {
"cpe": "cpe:/o:oracle:linux:-"
}
}
}
],
"category": "vendor",
"name": "Oracle"
},
{
"branches": [
{
"category": "product_name",
"name": "RESF Rocky Linux",
"product": {
"name": "RESF Rocky Linux",
"product_id": "T032255",
"product_identification_helper": {
"cpe": "cpe:/o:resf:rocky_linux:-"
}
}
}
],
"category": "vendor",
"name": "RESF"
},
{
"branches": [
{
"category": "product_name",
"name": "Red Hat Enterprise Linux",
"product": {
"name": "Red Hat Enterprise Linux",
"product_id": "67646",
"product_identification_helper": {
"cpe": "cpe:/o:redhat:enterprise_linux:-"
}
}
}
],
"category": "vendor",
"name": "Red Hat"
},
{
"branches": [
{
"category": "product_name",
"name": "SUSE Linux",
"product": {
"name": "SUSE Linux",
"product_id": "T002207",
"product_identification_helper": {
"cpe": "cpe:/o:suse:suse_linux:-"
}
}
},
{
"category": "product_name",
"name": "SUSE openSUSE",
"product": {
"name": "SUSE openSUSE",
"product_id": "T027843",
"product_identification_helper": {
"cpe": "cpe:/o:suse:opensuse:-"
}
}
}
],
"category": "vendor",
"name": "SUSE"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2025-59375",
"product_status": {
"known_affected": [
"T052087",
"T052088",
"T052085",
"T052086",
"2951",
"T002207",
"67646",
"T052084",
"T027843",
"T004914",
"T032255"
]
},
"release_date": "2026-03-24T23:00:00.000+00:00",
"title": "CVE-2025-59375"
},
{
"cve": "CVE-2026-3889",
"product_status": {
"known_affected": [
"T052087",
"T052088",
"T052085",
"T052086",
"2951",
"T002207",
"67646",
"T052084",
"T027843",
"T004914",
"T032255"
]
},
"release_date": "2026-03-24T23:00:00.000+00:00",
"title": "CVE-2026-3889"
},
{
"cve": "CVE-2026-4371",
"product_status": {
"known_affected": [
"T052087",
"T052088",
"T052085",
"T052086",
"2951",
"T002207",
"67646",
"T052084",
"T027843",
"T004914",
"T032255"
]
},
"release_date": "2026-03-24T23:00:00.000+00:00",
"title": "CVE-2026-4371"
},
{
"cve": "CVE-2026-4684",
"product_status": {
"known_affected": [
"T052087",
"T052088",
"T052085",
"T052086",
"2951",
"T002207",
"67646",
"T052084",
"T027843",
"T004914",
"T032255"
]
},
"release_date": "2026-03-24T23:00:00.000+00:00",
"title": "CVE-2026-4684"
},
{
"cve": "CVE-2026-4685",
"product_status": {
"known_affected": [
"T052087",
"T052088",
"T052085",
"T052086",
"2951",
"T002207",
"67646",
"T052084",
"T027843",
"T004914",
"T032255"
]
},
"release_date": "2026-03-24T23:00:00.000+00:00",
"title": "CVE-2026-4685"
},
{
"cve": "CVE-2026-4686",
"product_status": {
"known_affected": [
"T052087",
"T052088",
"T052085",
"T052086",
"2951",
"T002207",
"67646",
"T052084",
"T027843",
"T004914",
"T032255"
]
},
"release_date": "2026-03-24T23:00:00.000+00:00",
"title": "CVE-2026-4686"
},
{
"cve": "CVE-2026-4687",
"product_status": {
"known_affected": [
"T052087",
"T052088",
"T052085",
"T052086",
"2951",
"T002207",
"67646",
"T052084",
"T027843",
"T004914",
"T032255"
]
},
"release_date": "2026-03-24T23:00:00.000+00:00",
"title": "CVE-2026-4687"
},
{
"cve": "CVE-2026-4688",
"product_status": {
"known_affected": [
"T052087",
"T052088",
"T052085",
"T052086",
"2951",
"T002207",
"67646",
"T052084",
"T027843",
"T004914",
"T032255"
]
},
"release_date": "2026-03-24T23:00:00.000+00:00",
"title": "CVE-2026-4688"
},
{
"cve": "CVE-2026-4689",
"product_status": {
"known_affected": [
"T052087",
"T052088",
"T052085",
"T052086",
"2951",
"T002207",
"67646",
"T052084",
"T027843",
"T004914",
"T032255"
]
},
"release_date": "2026-03-24T23:00:00.000+00:00",
"title": "CVE-2026-4689"
},
{
"cve": "CVE-2026-4690",
"product_status": {
"known_affected": [
"T052087",
"T052088",
"T052085",
"T052086",
"2951",
"T002207",
"67646",
"T052084",
"T027843",
"T004914",
"T032255"
]
},
"release_date": "2026-03-24T23:00:00.000+00:00",
"title": "CVE-2026-4690"
},
{
"cve": "CVE-2026-4691",
"product_status": {
"known_affected": [
"T052087",
"T052088",
"T052085",
"T052086",
"2951",
"T002207",
"67646",
"T052084",
"T027843",
"T004914",
"T032255"
]
},
"release_date": "2026-03-24T23:00:00.000+00:00",
"title": "CVE-2026-4691"
},
{
"cve": "CVE-2026-4692",
"product_status": {
"known_affected": [
"T052087",
"T052088",
"T052085",
"T052086",
"2951",
"T002207",
"67646",
"T052084",
"T027843",
"T004914",
"T032255"
]
},
"release_date": "2026-03-24T23:00:00.000+00:00",
"title": "CVE-2026-4692"
},
{
"cve": "CVE-2026-4693",
"product_status": {
"known_affected": [
"T052087",
"T052088",
"T052085",
"T052086",
"2951",
"T002207",
"67646",
"T052084",
"T027843",
"T004914",
"T032255"
]
},
"release_date": "2026-03-24T23:00:00.000+00:00",
"title": "CVE-2026-4693"
},
{
"cve": "CVE-2026-4694",
"product_status": {
"known_affected": [
"T052087",
"T052088",
"T052085",
"T052086",
"2951",
"T002207",
"67646",
"T052084",
"T027843",
"T004914",
"T032255"
]
},
"release_date": "2026-03-24T23:00:00.000+00:00",
"title": "CVE-2026-4694"
},
{
"cve": "CVE-2026-4695",
"product_status": {
"known_affected": [
"T052087",
"T052088",
"T052085",
"T052086",
"2951",
"T002207",
"67646",
"T052084",
"T027843",
"T004914",
"T032255"
]
},
"release_date": "2026-03-24T23:00:00.000+00:00",
"title": "CVE-2026-4695"
},
{
"cve": "CVE-2026-4696",
"product_status": {
"known_affected": [
"T052087",
"T052088",
"T052085",
"T052086",
"2951",
"T002207",
"67646",
"T052084",
"T027843",
"T004914",
"T032255"
]
},
"release_date": "2026-03-24T23:00:00.000+00:00",
"title": "CVE-2026-4696"
},
{
"cve": "CVE-2026-4697",
"product_status": {
"known_affected": [
"T052087",
"T052088",
"T052085",
"T052086",
"2951",
"T002207",
"67646",
"T052084",
"T027843",
"T004914",
"T032255"
]
},
"release_date": "2026-03-24T23:00:00.000+00:00",
"title": "CVE-2026-4697"
},
{
"cve": "CVE-2026-4698",
"product_status": {
"known_affected": [
"T052087",
"T052088",
"T052085",
"T052086",
"2951",
"T002207",
"67646",
"T052084",
"T027843",
"T004914",
"T032255"
]
},
"release_date": "2026-03-24T23:00:00.000+00:00",
"title": "CVE-2026-4698"
},
{
"cve": "CVE-2026-4699",
"product_status": {
"known_affected": [
"T052087",
"T052088",
"T052085",
"T052086",
"2951",
"T002207",
"67646",
"T052084",
"T027843",
"T004914",
"T032255"
]
},
"release_date": "2026-03-24T23:00:00.000+00:00",
"title": "CVE-2026-4699"
},
{
"cve": "CVE-2026-4700",
"product_status": {
"known_affected": [
"T052087",
"T052088",
"T052085",
"T052086",
"2951",
"T002207",
"67646",
"T052084",
"T027843",
"T004914",
"T032255"
]
},
"release_date": "2026-03-24T23:00:00.000+00:00",
"title": "CVE-2026-4700"
},
{
"cve": "CVE-2026-4701",
"product_status": {
"known_affected": [
"T052087",
"T052088",
"T052085",
"T052086",
"2951",
"T002207",
"67646",
"T052084",
"T027843",
"T004914",
"T032255"
]
},
"release_date": "2026-03-24T23:00:00.000+00:00",
"title": "CVE-2026-4701"
},
{
"cve": "CVE-2026-4702",
"product_status": {
"known_affected": [
"T052087",
"T052088",
"T052085",
"T052086",
"2951",
"T002207",
"67646",
"T052084",
"T027843",
"T004914",
"T032255"
]
},
"release_date": "2026-03-24T23:00:00.000+00:00",
"title": "CVE-2026-4702"
},
{
"cve": "CVE-2026-4704",
"product_status": {
"known_affected": [
"T052087",
"T052088",
"T052085",
"T052086",
"2951",
"T002207",
"67646",
"T052084",
"T027843",
"T004914",
"T032255"
]
},
"release_date": "2026-03-24T23:00:00.000+00:00",
"title": "CVE-2026-4704"
},
{
"cve": "CVE-2026-4705",
"product_status": {
"known_affected": [
"T052087",
"T052088",
"T052085",
"T052086",
"2951",
"T002207",
"67646",
"T052084",
"T027843",
"T004914",
"T032255"
]
},
"release_date": "2026-03-24T23:00:00.000+00:00",
"title": "CVE-2026-4705"
},
{
"cve": "CVE-2026-4706",
"product_status": {
"known_affected": [
"T052087",
"T052088",
"T052085",
"T052086",
"2951",
"T002207",
"67646",
"T052084",
"T027843",
"T004914",
"T032255"
]
},
"release_date": "2026-03-24T23:00:00.000+00:00",
"title": "CVE-2026-4706"
},
{
"cve": "CVE-2026-4707",
"product_status": {
"known_affected": [
"T052087",
"T052088",
"T052085",
"T052086",
"2951",
"T002207",
"67646",
"T052084",
"T027843",
"T004914",
"T032255"
]
},
"release_date": "2026-03-24T23:00:00.000+00:00",
"title": "CVE-2026-4707"
},
{
"cve": "CVE-2026-4708",
"product_status": {
"known_affected": [
"T052087",
"T052088",
"T052085",
"T052086",
"2951",
"T002207",
"67646",
"T052084",
"T027843",
"T004914",
"T032255"
]
},
"release_date": "2026-03-24T23:00:00.000+00:00",
"title": "CVE-2026-4708"
},
{
"cve": "CVE-2026-4709",
"product_status": {
"known_affected": [
"T052087",
"T052088",
"T052085",
"T052086",
"2951",
"T002207",
"67646",
"T052084",
"T027843",
"T004914",
"T032255"
]
},
"release_date": "2026-03-24T23:00:00.000+00:00",
"title": "CVE-2026-4709"
},
{
"cve": "CVE-2026-4710",
"product_status": {
"known_affected": [
"T052087",
"T052088",
"T052085",
"T052086",
"2951",
"T002207",
"67646",
"T052084",
"T027843",
"T004914",
"T032255"
]
},
"release_date": "2026-03-24T23:00:00.000+00:00",
"title": "CVE-2026-4710"
},
{
"cve": "CVE-2026-4711",
"product_status": {
"known_affected": [
"T052087",
"T052088",
"T052085",
"T052086",
"2951",
"T002207",
"67646",
"T052084",
"T027843",
"T004914",
"T032255"
]
},
"release_date": "2026-03-24T23:00:00.000+00:00",
"title": "CVE-2026-4711"
},
{
"cve": "CVE-2026-4712",
"product_status": {
"known_affected": [
"T052087",
"T052088",
"T052085",
"T052086",
"2951",
"T002207",
"67646",
"T052084",
"T027843",
"T004914",
"T032255"
]
},
"release_date": "2026-03-24T23:00:00.000+00:00",
"title": "CVE-2026-4712"
},
{
"cve": "CVE-2026-4713",
"product_status": {
"known_affected": [
"T052087",
"T052088",
"T052085",
"T052086",
"2951",
"T002207",
"67646",
"T052084",
"T027843",
"T004914",
"T032255"
]
},
"release_date": "2026-03-24T23:00:00.000+00:00",
"title": "CVE-2026-4713"
},
{
"cve": "CVE-2026-4714",
"product_status": {
"known_affected": [
"T052087",
"T052088",
"T052085",
"T052086",
"2951",
"T002207",
"67646",
"T052084",
"T027843",
"T004914",
"T032255"
]
},
"release_date": "2026-03-24T23:00:00.000+00:00",
"title": "CVE-2026-4714"
},
{
"cve": "CVE-2026-4715",
"product_status": {
"known_affected": [
"T052087",
"T052088",
"T052085",
"T052086",
"2951",
"T002207",
"67646",
"T052084",
"T027843",
"T004914",
"T032255"
]
},
"release_date": "2026-03-24T23:00:00.000+00:00",
"title": "CVE-2026-4715"
},
{
"cve": "CVE-2026-4716",
"product_status": {
"known_affected": [
"T052087",
"T052088",
"T052085",
"T052086",
"2951",
"T002207",
"67646",
"T052084",
"T027843",
"T004914",
"T032255"
]
},
"release_date": "2026-03-24T23:00:00.000+00:00",
"title": "CVE-2026-4716"
},
{
"cve": "CVE-2026-4717",
"product_status": {
"known_affected": [
"T052087",
"T052088",
"T052085",
"T052086",
"2951",
"T002207",
"67646",
"T052084",
"T027843",
"T004914",
"T032255"
]
},
"release_date": "2026-03-24T23:00:00.000+00:00",
"title": "CVE-2026-4717"
},
{
"cve": "CVE-2026-4718",
"product_status": {
"known_affected": [
"T052087",
"T052088",
"T052085",
"T052086",
"2951",
"T002207",
"67646",
"T052084",
"T027843",
"T004914",
"T032255"
]
},
"release_date": "2026-03-24T23:00:00.000+00:00",
"title": "CVE-2026-4718"
},
{
"cve": "CVE-2026-4719",
"product_status": {
"known_affected": [
"T052087",
"T052088",
"T052085",
"T052086",
"2951",
"T002207",
"67646",
"T052084",
"T027843",
"T004914",
"T032255"
]
},
"release_date": "2026-03-24T23:00:00.000+00:00",
"title": "CVE-2026-4719"
},
{
"cve": "CVE-2026-4720",
"product_status": {
"known_affected": [
"T052087",
"T052088",
"T052085",
"T052086",
"2951",
"T002207",
"67646",
"T052084",
"T027843",
"T004914",
"T032255"
]
},
"release_date": "2026-03-24T23:00:00.000+00:00",
"title": "CVE-2026-4720"
},
{
"cve": "CVE-2026-4721",
"product_status": {
"known_affected": [
"T052087",
"T052088",
"T052085",
"T052086",
"2951",
"T002207",
"67646",
"T052084",
"T027843",
"T004914",
"T032255"
]
},
"release_date": "2026-03-24T23:00:00.000+00:00",
"title": "CVE-2026-4721"
},
{
"cve": "CVE-2026-4722",
"product_status": {
"known_affected": [
"T052087",
"T052088",
"T052085",
"T052086",
"2951",
"T002207",
"67646",
"T052084",
"T027843",
"T004914",
"T032255"
]
},
"release_date": "2026-03-24T23:00:00.000+00:00",
"title": "CVE-2026-4722"
},
{
"cve": "CVE-2026-4723",
"product_status": {
"known_affected": [
"T052087",
"T052088",
"T052085",
"T052086",
"2951",
"T002207",
"67646",
"T052084",
"T027843",
"T004914",
"T032255"
]
},
"release_date": "2026-03-24T23:00:00.000+00:00",
"title": "CVE-2026-4723"
},
{
"cve": "CVE-2026-4724",
"product_status": {
"known_affected": [
"T052087",
"T052088",
"T052085",
"T052086",
"2951",
"T002207",
"67646",
"T052084",
"T027843",
"T004914",
"T032255"
]
},
"release_date": "2026-03-24T23:00:00.000+00:00",
"title": "CVE-2026-4724"
},
{
"cve": "CVE-2026-4725",
"product_status": {
"known_affected": [
"T052087",
"T052088",
"T052085",
"T052086",
"2951",
"T002207",
"67646",
"T052084",
"T027843",
"T004914",
"T032255"
]
},
"release_date": "2026-03-24T23:00:00.000+00:00",
"title": "CVE-2026-4725"
},
{
"cve": "CVE-2026-4726",
"product_status": {
"known_affected": [
"T052087",
"T052088",
"T052085",
"T052086",
"2951",
"T002207",
"67646",
"T052084",
"T027843",
"T004914",
"T032255"
]
},
"release_date": "2026-03-24T23:00:00.000+00:00",
"title": "CVE-2026-4726"
},
{
"cve": "CVE-2026-4727",
"product_status": {
"known_affected": [
"T052087",
"T052088",
"T052085",
"T052086",
"2951",
"T002207",
"67646",
"T052084",
"T027843",
"T004914",
"T032255"
]
},
"release_date": "2026-03-24T23:00:00.000+00:00",
"title": "CVE-2026-4727"
},
{
"cve": "CVE-2026-4728",
"product_status": {
"known_affected": [
"T052087",
"T052088",
"T052085",
"T052086",
"2951",
"T002207",
"67646",
"T052084",
"T027843",
"T004914",
"T032255"
]
},
"release_date": "2026-03-24T23:00:00.000+00:00",
"title": "CVE-2026-4728"
},
{
"cve": "CVE-2026-4729",
"product_status": {
"known_affected": [
"T052087",
"T052088",
"T052085",
"T052086",
"2951",
"T002207",
"67646",
"T052084",
"T027843",
"T004914",
"T032255"
]
},
"release_date": "2026-03-24T23:00:00.000+00:00",
"title": "CVE-2026-4729"
}
]
}
CVE-2026-4696 (GCVE-0-2026-4696)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:48
VLAI?
EPSS
Title
Use-after-free in the Layout: Text and Fonts component
Summary
Use-after-free in the Layout: Text and Fonts component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity ?
9.8 (Critical)
CWE
- CWE-416 - Use After Free
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.34 , ≤ 115.*
(rpm)
Unaffected: 140.9 , ≤ 140.* (rpm) Unaffected: 149 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Sota Wada
{
"containers": {
"adp": [
{
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
}
},
{
"other": {
"content": {
"id": "CVE-2026-4696",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "yes"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-03-26T12:56:36.785179Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-416",
"description": "CWE-416 Use After Free",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-03-26T12:57:13.773Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"product": "Firefox",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "115.*",
"status": "unaffected",
"version": "115.34",
"versionType": "rpm"
},
{
"lessThanOrEqual": "140.*",
"status": "unaffected",
"version": "140.9",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "149",
"versionType": "rpm"
}
]
},
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "140.*",
"status": "unaffected",
"version": "140.9",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "149",
"versionType": "rpm"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Sota Wada"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Use-after-free in the Layout: Text and Fonts component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9."
}
],
"value": "Use-after-free in the Layout: Text and Fonts component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9."
}
],
"providerMetadata": {
"dateUpdated": "2026-04-13T13:48:58.949Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
},
"references": [
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2020190"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-20/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-21/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-22/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-23/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-24/"
}
],
"title": "Use-after-free in the Layout: Text and Fonts component"
}
},
"cveMetadata": {
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"assignerShortName": "mozilla",
"cveId": "CVE-2026-4696",
"datePublished": "2026-03-24T12:30:26.919Z",
"dateReserved": "2026-03-23T23:21:55.045Z",
"dateUpdated": "2026-04-13T13:48:58.949Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-4697 (GCVE-0-2026-4697)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:49
VLAI?
EPSS
Title
Incorrect boundary conditions in the Audio/Video: Web Codecs component
Summary
Incorrect boundary conditions in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity ?
7.5 (High)
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.9 , ≤ 140.*
(rpm)
Unaffected: 149 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Lorenzo
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CVE-2026-4707 (GCVE-0-2026-4707)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:50
VLAI?
EPSS
Title
Incorrect boundary conditions in the Graphics: Canvas2D component
Summary
Incorrect boundary conditions in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity ?
7.5 (High)
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.34 , ≤ 115.*
(rpm)
Unaffected: 140.9 , ≤ 140.* (rpm) Unaffected: 149 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Sajeeb Lohani
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CVE-2026-4718 (GCVE-0-2026-4718)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:51
VLAI?
EPSS
Title
Undefined behavior in the WebRTC: Signaling component
Summary
Undefined behavior in the WebRTC: Signaling component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity ?
8.1 (High)
CWE
- CWE-758 - Reliance on Undefined, Unspecified, or Implementation-Defined Behavior
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.9 , ≤ 140.*
(rpm)
Unaffected: 149 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Evyatar Ben Asher, Keane Lucas, Nicholas Carlini, Newton Cheng, Daniel Freeman, Alex Gaynor, and Joel Weinberger using Claude from Anthropic
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CVE-2026-4715 (GCVE-0-2026-4715)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:50
VLAI?
EPSS
Title
Uninitialized memory in the Graphics: Canvas2D component
Summary
Uninitialized memory in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity ?
9.1 (Critical)
CWE
- CWE-908 - Use of Uninitialized Resource
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.9 , ≤ 140.*
(rpm)
Unaffected: 149 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Jun Yang
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CVE-2026-4698 (GCVE-0-2026-4698)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:50
VLAI?
EPSS
Title
JIT miscompilation in the JavaScript Engine: JIT component
Summary
JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity ?
9.8 (Critical)
CWE
- CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.34 , ≤ 115.*
(rpm)
Unaffected: 140.9 , ≤ 140.* (rpm) Unaffected: 149 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
maxpl0it working with Trend Micro Zero Day Initiative
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CVE-2025-59375 (GCVE-0-2025-59375)
Vulnerability from cvelistv5 – Published: 2025-09-15 00:00 – Updated: 2025-11-04 21:13
VLAI?
EPSS
Summary
libexpat in Expat before 2.7.2 allows attackers to trigger large dynamic memory allocations via a small document that is submitted for parsing.
Severity ?
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| libexpat project | libexpat |
Affected:
0 , < 2.7.2
(semver)
|
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CVE-2026-4700 (GCVE-0-2026-4700)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:50
VLAI?
EPSS
Title
Mitigation bypass in the Networking: HTTP component
Summary
Mitigation bypass in the Networking: HTTP component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity ?
9.8 (Critical)
CWE
- CWE-288 - Authentication Bypass Using an Alternate Path or Channel
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.9 , ≤ 140.*
(rpm)
Unaffected: 149 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
pizzahunthack1
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CVE-2026-4685 (GCVE-0-2026-4685)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:47
VLAI?
EPSS
Title
Incorrect boundary conditions in the Graphics: Canvas2D component
Summary
Incorrect boundary conditions in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity ?
7.5 (High)
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.34 , ≤ 115.*
(rpm)
Unaffected: 140.9 , ≤ 140.* (rpm) Unaffected: 149 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Sajeeb Lohani
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CVE-2026-4713 (GCVE-0-2026-4713)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:50
VLAI?
EPSS
Title
Incorrect boundary conditions in the Graphics component
Summary
Incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity ?
7.5 (High)
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.9 , ≤ 140.*
(rpm)
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|||||||
|
|||||||||
Credits
Sajeeb Lohani
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CVE-2026-4720 (GCVE-0-2026-4720)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:51
VLAI?
EPSS
Title
Memory safety bugs fixed in Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149
Summary
Memory safety bugs present in Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity ?
9.8 (Critical)
CWE
- CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.9 , ≤ 140.*
(rpm)
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|||||||
|
|||||||||
Credits
Christian Holler, Gabriele Svelto, Tom Schuster and the Mozilla Fuzzing Team
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CVE-2026-4717 (GCVE-0-2026-4717)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:51
VLAI?
EPSS
Title
Privilege escalation in the Netmonitor component
Summary
Privilege escalation in the Netmonitor component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity ?
9.8 (Critical)
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.9 , ≤ 140.*
(rpm)
Unaffected: 149 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Satoki Tsuji
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CVE-2026-4727 (GCVE-0-2026-4727)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:51
VLAI?
EPSS
Title
Denial-of-service in the Libraries component in NSS
Summary
Denial-of-service in the Libraries component in NSS. This vulnerability was fixed in Firefox 149 and Thunderbird 149.
Severity ?
7.5 (High)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
149 , ≤ *
(rpm)
|
|||||||
|
|||||||||
Credits
Cody
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CVE-2026-4719 (GCVE-0-2026-4719)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:51
VLAI?
EPSS
Title
Incorrect boundary conditions in the Graphics: Text component
Summary
Incorrect boundary conditions in the Graphics: Text component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity ?
7.5 (High)
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.9 , ≤ 140.*
(rpm)
Unaffected: 149 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Sajeeb Lohani
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CVE-2026-4704 (GCVE-0-2026-4704)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:50
VLAI?
EPSS
Title
Denial-of-service in the WebRTC: Signaling component
Summary
Denial-of-service in the WebRTC: Signaling component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity ?
7.5 (High)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.9 , ≤ 140.*
(rpm)
Unaffected: 149 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Evyatar Ben Asher, Keane Lucas, Nicholas Carlini, Newton Cheng, Daniel Freeman, Alex Gaynor, and Joel Weinberger using Claude from Anthropic
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CVE-2026-4699 (GCVE-0-2026-4699)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:50
VLAI?
EPSS
Title
Incorrect boundary conditions in the Layout: Text and Fonts component
Summary
Incorrect boundary conditions in the Layout: Text and Fonts component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity ?
7.5 (High)
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.34 , ≤ 115.*
(rpm)
Unaffected: 140.9 , ≤ 140.* (rpm) Unaffected: 149 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Matej Smycka
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CVE-2026-4725 (GCVE-0-2026-4725)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:50
VLAI?
EPSS
Title
Sandbox escape due to use-after-free in the Graphics: Canvas2D component
Summary
Sandbox escape due to use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149 and Thunderbird 149.
Severity ?
9.3 (Critical)
CWE
- CWE-416 - Use After Free
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
149 , ≤ *
(rpm)
|
|||||||
|
|||||||||
Credits
Jun Yang
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CVE-2026-4690 (GCVE-0-2026-4690)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:48
VLAI?
EPSS
Title
Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component
Summary
Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity ?
9.6 (Critical)
CWE
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.34 , ≤ 115.*
(rpm)
Unaffected: 140.9 , ≤ 140.* (rpm) Unaffected: 149 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Sajeeb Lohani
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CVE-2026-3889 (GCVE-0-2026-3889)
Vulnerability from cvelistv5 – Published: 2026-03-24 20:27 – Updated: 2026-04-13 13:51
VLAI?
EPSS
Title
Spoofing issue in Thunderbird
Summary
Spoofing issue in Thunderbird. This vulnerability was fixed in Thunderbird 149 and Thunderbird 140.9.
Severity ?
6.5 (Medium)
CWE
- CWE-451 - User Interface (UI) Misrepresentation of Critical Information
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Mozilla | Thunderbird |
Unaffected:
140.9 , ≤ 140.*
(rpm)
Unaffected: 149 , ≤ * (rpm) |
Credits
Eemeli Aro
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CVE-2026-4705 (GCVE-0-2026-4705)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:50
VLAI?
EPSS
Title
Undefined behavior in the WebRTC: Signaling component
Summary
Undefined behavior in the WebRTC: Signaling component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity ?
9.8 (Critical)
CWE
- CWE-758 - Reliance on Undefined, Unspecified, or Implementation-Defined Behavior
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.9 , ≤ 140.*
(rpm)
Unaffected: 149 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Evyatar Ben Asher, Keane Lucas, Nicholas Carlini, Newton Cheng, Daniel Freeman, Alex Gaynor, and Joel Weinberger using Claude from Anthropic
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CVE-2026-4702 (GCVE-0-2026-4702)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:50
VLAI?
EPSS
Title
JIT miscompilation in the JavaScript Engine component
Summary
JIT miscompilation in the JavaScript Engine component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity ?
9.8 (Critical)
CWE
- CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.9 , ≤ 140.*
(rpm)
Unaffected: 149 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Evyatar Ben Asher, Keane Lucas, Nicholas Carlini, Newton Cheng, Daniel Freeman, Alex Gaynor, and Joel Weinberger using Claude from Anthropic
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CVE-2026-4687 (GCVE-0-2026-4687)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:48
VLAI?
EPSS
Title
Sandbox escape due to incorrect boundary conditions in the Telemetry component
Summary
Sandbox escape due to incorrect boundary conditions in the Telemetry component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity ?
9.6 (Critical)
CWE
- CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.34 , ≤ 115.*
(rpm)
Unaffected: 140.9 , ≤ 140.* (rpm) Unaffected: 149 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Sajeeb Lohani
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CVE-2026-4711 (GCVE-0-2026-4711)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:50
VLAI?
EPSS
Title
Use-after-free in the Widget: Cocoa component
Summary
Use-after-free in the Widget: Cocoa component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity ?
9.8 (Critical)
CWE
- CWE-416 - Use After Free
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.9 , ≤ 140.*
(rpm)
Unaffected: 149 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Josh Aas
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CVE-2026-4691 (GCVE-0-2026-4691)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:48
VLAI?
EPSS
Title
Use-after-free in the CSS Parsing and Computation component
Summary
Use-after-free in the CSS Parsing and Computation component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity ?
9.8 (Critical)
CWE
- CWE-416 - Use After Free
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.34 , ≤ 115.*
(rpm)
Unaffected: 140.9 , ≤ 140.* (rpm) Unaffected: 149 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Fabius Artrel
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CVE-2026-4714 (GCVE-0-2026-4714)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:50
VLAI?
EPSS
Title
Incorrect boundary conditions in the Audio/Video component
Summary
Incorrect boundary conditions in the Audio/Video component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity ?
7.5 (High)
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.9 , ≤ 140.*
(rpm)
Unaffected: 149 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Sajeeb Lohani
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CVE-2026-4701 (GCVE-0-2026-4701)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:50
VLAI?
EPSS
Title
Use-after-free in the JavaScript Engine component
Summary
Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity ?
9.8 (Critical)
CWE
- CWE-416 - Use After Free
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.9 , ≤ 140.*
(rpm)
Unaffected: 149 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Gary Kwong
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CVE-2026-4712 (GCVE-0-2026-4712)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:50
VLAI?
EPSS
Title
Information disclosure in the Widget: Cocoa component
Summary
Information disclosure in the Widget: Cocoa component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity ?
7.5 (High)
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.9 , ≤ 140.*
(rpm)
Unaffected: 149 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Josh Aas
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CVE-2026-4708 (GCVE-0-2026-4708)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:50
VLAI?
EPSS
Title
Incorrect boundary conditions in the Graphics component
Summary
Incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity ?
7.5 (High)
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.9 , ≤ 140.*
(rpm)
Unaffected: 149 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Sajeeb Lohani
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CVE-2026-4716 (GCVE-0-2026-4716)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:51
VLAI?
EPSS
Title
Incorrect boundary conditions, uninitialized memory in the JavaScript Engine component
Summary
Incorrect boundary conditions, uninitialized memory in the JavaScript Engine component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity ?
9.1 (Critical)
CWE
- CWE-908 - Use of Uninitialized Resource
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.9 , ≤ 140.*
(rpm)
Unaffected: 149 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Pwn2addr
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CVE-2026-4684 (GCVE-0-2026-4684)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:46
VLAI?
EPSS
Title
Race condition, use-after-free in the Graphics: WebRender component
Summary
Race condition, use-after-free in the Graphics: WebRender component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity ?
7.5 (High)
CWE
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.34 , ≤ 115.*
(rpm)
Unaffected: 140.9 , ≤ 140.* (rpm) Unaffected: 149 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Oskar L
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CVE-2026-4694 (GCVE-0-2026-4694)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:48
VLAI?
EPSS
Title
Incorrect boundary conditions, integer overflow in the Graphics component
Summary
Incorrect boundary conditions, integer overflow in the Graphics component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity ?
7.5 (High)
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.34 , ≤ 115.*
(rpm)
Unaffected: 140.9 , ≤ 140.* (rpm) Unaffected: 149 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Sajeeb Lohani
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CVE-2026-4724 (GCVE-0-2026-4724)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:50
VLAI?
EPSS
Title
Undefined behavior in the Audio/Video component
Summary
Undefined behavior in the Audio/Video component. This vulnerability was fixed in Firefox 149 and Thunderbird 149.
Severity ?
9.1 (Critical)
CWE
- CWE-758 - Reliance on Undefined, Unspecified, or Implementation-Defined Behavior
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
149 , ≤ *
(rpm)
|
|||||||
|
|||||||||
Credits
Evyatar Ben Asher, Keane Lucas, Nicholas Carlini, Newton Cheng, Daniel Freeman, Alex Gaynor, and Joel Weinberger using Claude from Anthropic
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CVE-2026-4726 (GCVE-0-2026-4726)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:51
VLAI?
EPSS
Title
Denial-of-service in the XML component
Summary
Denial-of-service in the XML component. This vulnerability was fixed in Firefox 149 and Thunderbird 149.
Severity ?
7.5 (High)
CWE
- CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
149 , ≤ *
(rpm)
|
|||||||
|
|||||||||
Credits
Hanno Boeck
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CVE-2026-4693 (GCVE-0-2026-4693)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:48
VLAI?
EPSS
Title
Incorrect boundary conditions in the Audio/Video: Playback component
Summary
Incorrect boundary conditions in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity ?
7.5 (High)
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.34 , ≤ 115.*
(rpm)
Unaffected: 140.9 , ≤ 140.* (rpm) Unaffected: 149 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Sajeeb Lohani
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CVE-2026-4710 (GCVE-0-2026-4710)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:50
VLAI?
EPSS
Title
Incorrect boundary conditions in the Audio/Video component
Summary
Incorrect boundary conditions in the Audio/Video component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity ?
9.8 (Critical)
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.9 , ≤ 140.*
(rpm)
Unaffected: 149 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Sajeeb Lohani
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CVE-2026-4692 (GCVE-0-2026-4692)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:48
VLAI?
EPSS
Title
Sandbox escape in the Responsive Design Mode component
Summary
Sandbox escape in the Responsive Design Mode component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity ?
9.6 (Critical)
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.34 , ≤ 115.*
(rpm)
Unaffected: 140.9 , ≤ 140.* (rpm) Unaffected: 149 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Tom Ritter
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CVE-2026-4686 (GCVE-0-2026-4686)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:48
VLAI?
EPSS
Title
Incorrect boundary conditions in the Graphics: Canvas2D component
Summary
Incorrect boundary conditions in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity ?
7.5 (High)
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.34 , ≤ 115.*
(rpm)
Unaffected: 140.9 , ≤ 140.* (rpm) Unaffected: 149 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Sajeeb Lohani
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CVE-2026-4722 (GCVE-0-2026-4722)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:50
VLAI?
EPSS
Title
Privilege escalation in the IPC component
Summary
Privilege escalation in the IPC component. This vulnerability was fixed in Firefox 149 and Thunderbird 149.
Severity ?
8.8 (High)
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
149 , ≤ *
(rpm)
|
|||||||
|
|||||||||
Credits
Nika Layzell
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CVE-2026-4729 (GCVE-0-2026-4729)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:51
VLAI?
EPSS
Title
Memory safety bugs fixed in Firefox 149 and Thunderbird 149
Summary
Memory safety bugs present in Firefox 148 and Thunderbird 148. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 149 and Thunderbird 149.
Severity ?
9.8 (Critical)
CWE
- CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
149 , ≤ *
(rpm)
|
|||||||
|
|||||||||
Credits
Christian Holler, Fatih Kilic, Tom Schuster and the Mozilla Fuzzing Team
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CVE-2026-4723 (GCVE-0-2026-4723)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:50
VLAI?
EPSS
Title
Use-after-free in the JavaScript Engine component
Summary
Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 149 and Thunderbird 149.
Severity ?
9.8 (Critical)
CWE
- CWE-416 - Use After Free
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
149 , ≤ *
(rpm)
|
|||||||
|
|||||||||
Credits
Evyatar Ben Asher, Keane Lucas, Nicholas Carlini, Newton Cheng, Daniel Freeman, Alex Gaynor, and Joel Weinberger using Claude from Anthropic
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CVE-2026-4689 (GCVE-0-2026-4689)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:48
VLAI?
EPSS
Title
Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component
Summary
Sandbox escape due to incorrect boundary conditions, integer overflow in the XPCOM component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity ?
10 (Critical)
CWE
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.34 , ≤ 115.*
(rpm)
Unaffected: 140.9 , ≤ 140.* (rpm) Unaffected: 149 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Sajeeb Lohani
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CVE-2026-4721 (GCVE-0-2026-4721)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:51
VLAI?
EPSS
Title
Memory safety bugs fixed in Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird ESR 140.9, Firefox 149 and Thunderbird 149
Summary
Memory safety bugs present in Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity ?
9.8 (Critical)
CWE
- CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.34 , ≤ 115.*
(rpm)
Unaffected: 140.9 , ≤ 140.* (rpm) Unaffected: 149 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Christian Holler, Timothy Nikkel, Tom Schuster and the Mozilla Fuzzing Team
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CVE-2026-4695 (GCVE-0-2026-4695)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:48
VLAI?
EPSS
Title
Incorrect boundary conditions in the Audio/Video: Web Codecs component
Summary
Incorrect boundary conditions in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity ?
7.5 (High)
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.9 , ≤ 140.*
(rpm)
Unaffected: 149 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Atte Kettunen
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CVE-2026-4728 (GCVE-0-2026-4728)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:51
VLAI?
EPSS
Title
Spoofing issue in the Privacy: Anti-Tracking component
Summary
Spoofing issue in the Privacy: Anti-Tracking component. This vulnerability was fixed in Firefox 149 and Thunderbird 149.
Severity ?
6.5 (Medium)
CWE
- CWE-290 - Authentication Bypass by Spoofing
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
149 , ≤ *
(rpm)
|
|||||||
|
|||||||||
Credits
Aswinkumar Gokulakannan
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CVE-2026-4371 (GCVE-0-2026-4371)
Vulnerability from cvelistv5 – Published: 2026-03-24 20:27 – Updated: 2026-04-13 13:51
VLAI?
EPSS
Title
Out of bounds read in IMAP parsing
Summary
A malicious mail server could send malformed strings with negative lengths, causing the parser to read memory outside the buffer. If a mail server or connection to a mail server were compromised, an attacker could cause the parser to malfunction, potentially crashing Thunderbird or leaking sensitive data. This vulnerability was fixed in Thunderbird 149 and Thunderbird 140.9.
Severity ?
7.4 (High)
CWE
- CWE-126 - Buffer Over-read
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Mozilla | Thunderbird |
Unaffected:
140.9 , ≤ 140.*
(rpm)
Unaffected: 149 , ≤ * (rpm) |
Credits
Rintaro Kobayashi
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CVE-2026-4709 (GCVE-0-2026-4709)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:50
VLAI?
EPSS
Title
Incorrect boundary conditions in the Audio/Video: GMP component
Summary
Incorrect boundary conditions in the Audio/Video: GMP component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity ?
7.5 (High)
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
| URL | Tags | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.34 , ≤ 115.*
(rpm)
Unaffected: 140.9 , ≤ 140.* (rpm) Unaffected: 149 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Sajeeb Lohani
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CVE-2026-4706 (GCVE-0-2026-4706)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:50
VLAI?
EPSS
Title
Incorrect boundary conditions in the Graphics: Canvas2D component
Summary
Incorrect boundary conditions in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149, Firefox ESR 115.34, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity ?
7.5 (High)
CWE
- CWE-754 - Improper Check for Unusual or Exceptional Conditions
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.34 , ≤ 115.*
(rpm)
Unaffected: 140.9 , ≤ 140.* (rpm) Unaffected: 149 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Jun Yang
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CVE-2026-4688 (GCVE-0-2026-4688)
Vulnerability from cvelistv5 – Published: 2026-03-24 12:30 – Updated: 2026-04-13 13:48
VLAI?
EPSS
Title
Sandbox escape due to use-after-free in the Disability Access APIs component
Summary
Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
Severity ?
9.6 (Critical)
CWE
- CWE-416 - Use After Free
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.9 , ≤ 140.*
(rpm)
Unaffected: 149 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Sajeeb Lohani
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"status": "unaffected",
"version": "149",
"versionType": "rpm"
}
]
},
{
"product": "Thunderbird",
"vendor": "Mozilla",
"versions": [
{
"lessThanOrEqual": "140.*",
"status": "unaffected",
"version": "140.9",
"versionType": "rpm"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "149",
"versionType": "rpm"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Sajeeb Lohani"
}
],
"descriptions": [
{
"lang": "en",
"supportingMedia": [
{
"base64": false,
"type": "text/html",
"value": "Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9."
}
],
"value": "Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9."
}
],
"providerMetadata": {
"dateUpdated": "2026-04-13T13:48:35.360Z",
"orgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"shortName": "mozilla"
},
"references": [
{
"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2016373"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-20/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-22/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-23/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-24/"
}
],
"title": "Sandbox escape due to use-after-free in the Disability Access APIs component"
}
},
"cveMetadata": {
"assignerOrgId": "f16b083a-5664-49f3-a51e-8d479e5ed7fe",
"assignerShortName": "mozilla",
"cveId": "CVE-2026-4688",
"datePublished": "2026-03-24T12:30:22.710Z",
"dateReserved": "2026-03-23T23:21:37.949Z",
"dateUpdated": "2026-04-13T13:48:35.360Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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