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5286 vulnerabilities found for thunderbird by mozilla
CERTFR-2026-AVI-0175
Vulnerability from certfr_avis - Published: 2026-02-17 - Updated: 2026-02-17
De multiples vulnérabilités ont été découvertes dans les produits Mozilla. Elles permettent à un attaquant de provoquer un contournement de la politique de sécurité et un problème de sécurité non spécifié par l'éditeur.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Impacted products
| Vendor | Product | Description | ||
|---|---|---|---|---|
| Mozilla | Firefox | Firefox pour iOS versions antérieures à 147.2.1 | ||
| Mozilla | Thunderbird | Thunderbird versions 147.x antérieures à 147.0.2 | ||
| Mozilla | Firefox ESR | Firefox ESR versions 115.x antérieures à 115.32.1 | ||
| Mozilla | Firefox | Firefox versions antérieures à 147.0.4 | ||
| Mozilla | Thunderbird | Thunderbird versions 140.x antérieures à 140.7.2 | ||
| Mozilla | Firefox ESR | Firefox ESR versions 140.x antérieures à 140.7.1 |
References
| Title | Publication Time | Tags | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Firefox pour iOS versions ant\u00e9rieures \u00e0 147.2.1",
"product": {
"name": "Firefox",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Thunderbird versions 147.x ant\u00e9rieures \u00e0 147.0.2",
"product": {
"name": "Thunderbird",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Firefox ESR versions 115.x ant\u00e9rieures \u00e0 115.32.1",
"product": {
"name": "Firefox ESR",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": " Firefox versions ant\u00e9rieures \u00e0 147.0.4",
"product": {
"name": "Firefox",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Thunderbird versions 140.x ant\u00e9rieures \u00e0 140.7.2",
"product": {
"name": "Thunderbird",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Firefox ESR versions 140.x ant\u00e9rieures \u00e0 140.7.1",
"product": {
"name": "Firefox ESR",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
}
],
"affected_systems_content": "",
"content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
"cves": [
{
"name": "CVE-2026-2032",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2032"
},
{
"name": "CVE-2026-2447",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-2447"
}
],
"initial_release_date": "2026-02-17T00:00:00",
"last_revision_date": "2026-02-17T00:00:00",
"links": [],
"reference": "CERTFR-2026-AVI-0175",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-02-17T00:00:00.000000"
}
],
"risks": [
{
"description": "Non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur"
},
{
"description": "Contournement de la politique de s\u00e9curit\u00e9"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans les produits Mozilla. Elles permettent \u00e0 un attaquant de provoquer un contournement de la politique de s\u00e9curit\u00e9 et un probl\u00e8me de s\u00e9curit\u00e9 non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans les produits Mozilla",
"vendor_advisories": [
{
"published_at": "2026-02-09",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-09",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-09/"
},
{
"published_at": "2026-02-16",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-11",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-11/"
},
{
"published_at": "2026-02-16",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-10",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-10/"
}
]
}
CERTFR-2026-AVI-0095
Vulnerability from certfr_avis - Published: 2026-01-28 - Updated: 2026-01-28
De multiples vulnérabilités ont été découvertes dans les produits Mozilla. Certaines d'entre elles permettent à un attaquant de provoquer une atteinte à la confidentialité des données, un contournement de la politique de sécurité et un problème de sécurité non spécifié par l'éditeur.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Impacted products
| Vendor | Product | Description | ||
|---|---|---|---|---|
| Mozilla | Firefox | Firefox versions antérieures à 147.0.2 | ||
| Mozilla | Thunderbird | Thunderbird versions antérieures à 140.7.1 | ||
| Mozilla | Thunderbird | Thunderbird versions antérieures à 147.0.1 |
References
| Title | Publication Time | Tags | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Firefox versions ant\u00e9rieures \u00e0 147.0.2",
"product": {
"name": "Firefox",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": " Thunderbird versions ant\u00e9rieures \u00e0 140.7.1",
"product": {
"name": "Thunderbird",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": " Thunderbird versions ant\u00e9rieures \u00e0 147.0.1",
"product": {
"name": "Thunderbird",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
}
],
"affected_systems_content": "",
"content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
"cves": [
{
"name": "CVE-2026-0818",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0818"
},
{
"name": "CVE-2026-24868",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-24868"
},
{
"name": "CVE-2026-24869",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-24869"
}
],
"initial_release_date": "2026-01-28T00:00:00",
"last_revision_date": "2026-01-28T00:00:00",
"links": [],
"reference": "CERTFR-2026-AVI-0095",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-01-28T00:00:00.000000"
}
],
"risks": [
{
"description": "Non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur"
},
{
"description": "Contournement de la politique de s\u00e9curit\u00e9"
},
{
"description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans les produits Mozilla. Certaines d\u0027entre elles permettent \u00e0 un attaquant de provoquer une atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es, un contournement de la politique de s\u00e9curit\u00e9 et un probl\u00e8me de s\u00e9curit\u00e9 non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans les produits Mozilla",
"vendor_advisories": [
{
"published_at": "2026-01-27",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-08",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-08/"
},
{
"published_at": "2026-01-27",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-06",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-06/"
},
{
"published_at": "2026-01-27",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-07",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-07/"
}
]
}
CERTFR-2026-AVI-0051
Vulnerability from certfr_avis - Published: 2026-01-15 - Updated: 2026-01-15
De multiples vulnérabilités ont été découvertes dans les produits Mozilla. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire, un déni de service à distance et une atteinte à la confidentialité des données.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Impacted products
| Vendor | Product | Description | ||
|---|---|---|---|---|
| Mozilla | Thunderbird | Thunderbird versions antérieures à 140.7 | ||
| Mozilla | Firefox ESR | Firefox ESR versions antérieures à 140.7 | ||
| Mozilla | Firefox | Firefox versions antérieures à 147 | ||
| Mozilla | Thunderbird | Thunderbird versions antérieures à 147 |
References
| Title | Publication Time | Tags | ||||||
|---|---|---|---|---|---|---|---|---|
|
||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Thunderbird versions ant\u00e9rieures \u00e0 140.7",
"product": {
"name": "Thunderbird",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Firefox ESR versions ant\u00e9rieures \u00e0 140.7",
"product": {
"name": "Firefox ESR",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Firefox versions ant\u00e9rieures \u00e0 147",
"product": {
"name": "Firefox",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Thunderbird versions ant\u00e9rieures \u00e0 147",
"product": {
"name": "Thunderbird",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
}
],
"affected_systems_content": "",
"content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
"cves": [
{
"name": "CVE-2026-0885",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0885"
},
{
"name": "CVE-2026-0887",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0887"
},
{
"name": "CVE-2025-14327",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-14327"
},
{
"name": "CVE-2026-0879",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0879"
},
{
"name": "CVE-2026-0892",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0892"
},
{
"name": "CVE-2026-0877",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0877"
},
{
"name": "CVE-2026-0878",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0878"
},
{
"name": "CVE-2026-0883",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0883"
},
{
"name": "CVE-2026-0880",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0880"
},
{
"name": "CVE-2026-0881",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0881"
},
{
"name": "CVE-2026-0882",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0882"
},
{
"name": "CVE-2026-0884",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0884"
},
{
"name": "CVE-2026-0889",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0889"
},
{
"name": "CVE-2026-0888",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0888"
},
{
"name": "CVE-2026-0886",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0886"
},
{
"name": "CVE-2026-0890",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0890"
},
{
"name": "CVE-2026-0891",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0891"
}
],
"initial_release_date": "2026-01-15T00:00:00",
"last_revision_date": "2026-01-15T00:00:00",
"links": [],
"reference": "CERTFR-2026-AVI-0051",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-01-15T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service \u00e0 distance"
},
{
"description": "Ex\u00e9cution de code arbitraire"
},
{
"description": "Non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur"
},
{
"description": "Contournement de la politique de s\u00e9curit\u00e9"
},
{
"description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans les produits Mozilla. Certaines d\u0027entre elles permettent \u00e0 un attaquant de provoquer une ex\u00e9cution de code arbitraire, un d\u00e9ni de service \u00e0 distance et une atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans les produits Mozilla",
"vendor_advisories": [
{
"published_at": "2026-01-13",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-05",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-05/"
},
{
"published_at": "2026-01-13",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-04",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-04/"
}
]
}
CERTFR-2026-AVI-0038
Vulnerability from certfr_avis - Published: 2026-01-14 - Updated: 2026-01-15
De multiples vulnérabilités ont été découvertes dans les produits Mozilla. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, un déni de service à distance et une atteinte à la confidentialité des données.
Solutions
Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).
Impacted products
| Vendor | Product | Description | ||
|---|---|---|---|---|
| Mozilla | Firefox ESR | Firefox ESR versions antérieures à 115.32 | ||
| Mozilla | Firefox ESR | Firefox ESR versions antérieures à 140.7 | ||
| Mozilla | Firefox | Firefox versions antérieures à 147 | ||
| Mozilla | Thunderbird | Thunderbird versions antérieures à 147 |
References
| Title | Publication Time | Tags | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
|
|||||||||||
{
"$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
"affected_systems": [
{
"description": "Firefox ESR versions ant\u00e9rieures \u00e0 115.32",
"product": {
"name": "Firefox ESR",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Firefox ESR versions ant\u00e9rieures \u00e0 140.7",
"product": {
"name": "Firefox ESR",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Firefox versions ant\u00e9rieures \u00e0 147",
"product": {
"name": "Firefox",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
},
{
"description": "Thunderbird versions ant\u00e9rieures \u00e0 147",
"product": {
"name": "Thunderbird",
"vendor": {
"name": "Mozilla",
"scada": false
}
}
}
],
"affected_systems_content": "",
"content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
"cves": [
{
"name": "CVE-2026-0885",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0885"
},
{
"name": "CVE-2026-0887",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0887"
},
{
"name": "CVE-2025-14327",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-14327"
},
{
"name": "CVE-2026-0879",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0879"
},
{
"name": "CVE-2026-0892",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0892"
},
{
"name": "CVE-2026-0877",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0877"
},
{
"name": "CVE-2026-0878",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0878"
},
{
"name": "CVE-2026-0883",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0883"
},
{
"name": "CVE-2026-0880",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0880"
},
{
"name": "CVE-2026-0881",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0881"
},
{
"name": "CVE-2026-0882",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0882"
},
{
"name": "CVE-2026-0884",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0884"
},
{
"name": "CVE-2026-0889",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0889"
},
{
"name": "CVE-2026-0888",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0888"
},
{
"name": "CVE-2026-0886",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0886"
},
{
"name": "CVE-2026-0890",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0890"
},
{
"name": "CVE-2026-0891",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-0891"
}
],
"initial_release_date": "2026-01-14T00:00:00",
"last_revision_date": "2026-01-15T00:00:00",
"links": [],
"reference": "CERTFR-2026-AVI-0038",
"revisions": [
{
"description": "Version initiale",
"revision_date": "2026-01-14T00:00:00.000000"
},
{
"description": "Modification d\u0027un syst\u00e8me afffect\u00e9",
"revision_date": "2026-01-15T00:00:00.000000"
}
],
"risks": [
{
"description": "D\u00e9ni de service \u00e0 distance"
},
{
"description": "Ex\u00e9cution de code arbitraire \u00e0 distance"
},
{
"description": "Non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur"
},
{
"description": "Contournement de la politique de s\u00e9curit\u00e9"
},
{
"description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
}
],
"summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans les produits Mozilla. Certaines d\u0027entre elles permettent \u00e0 un attaquant de provoquer une ex\u00e9cution de code arbitraire \u00e0 distance, un d\u00e9ni de service \u00e0 distance et une atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es.",
"title": "Multiples vuln\u00e9rabilit\u00e9s dans les produits Mozilla",
"vendor_advisories": [
{
"published_at": "2026-01-13",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-03",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-03/"
},
{
"published_at": "2026-01-13",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-02",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-02/"
},
{
"published_at": "2026-01-13",
"title": "Bulletin de s\u00e9curit\u00e9 Mozilla mfsa2026-01",
"url": "https://www.mozilla.org/en-US/security/advisories/mfsa2026-01/"
}
]
}
FKIE_CVE-2026-2447
Vulnerability from fkie_nvd - Published: 2026-02-16 15:18 - Updated: 2026-02-18 21:39
Severity ?
Summary
Heap buffer overflow in libvpx. This vulnerability affects Firefox < 147.0.4, Firefox ESR < 140.7.1, Firefox ESR < 115.32.1, Thunderbird < 140.7.2, and Thunderbird < 147.0.2.
References
| URL | Tags | ||
|---|---|---|---|
| security@mozilla.org | https://bugzilla.mozilla.org/show_bug.cgi?id=2014390 | Issue Tracking, Permissions Required | |
| security@mozilla.org | https://www.mozilla.org/security/advisories/mfsa2026-10/ | Vendor Advisory | |
| security@mozilla.org | https://www.mozilla.org/security/advisories/mfsa2026-11/ | Vendor Advisory |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| mozilla | firefox | * | |
| mozilla | firefox | * | |
| mozilla | firefox | * | |
| mozilla | thunderbird | * | |
| mozilla | thunderbird | * |
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FKIE_CVE-2026-0818
Vulnerability from fkie_nvd - Published: 2026-01-28 08:16 - Updated: 2026-02-04 10:16
Severity ?
Summary
When a user explicitly requested Thunderbird to decrypt an inline OpenPGP message that was embedded in a text section of an email that was formatted and styled with HTML and CSS, then the decrypted contents were rendered in a context in which the CSS styles from the outer messages were active. If the user had additionally allowed loading of the remote content referenced by the outer email message, and the email was crafted by the sender using a combination of CSS rules and fonts and animations, then it was possible to extract the secret contents of the email. This vulnerability affects Thunderbird < 147.0.1 and Thunderbird < 140.7.1.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| mozilla | thunderbird | * | |
| mozilla | thunderbird | * |
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}
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FKIE_CVE-2026-0886
Vulnerability from fkie_nvd - Published: 2026-01-13 14:16 - Updated: 2026-01-22 19:05
Severity ?
Summary
Incorrect boundary conditions in the Graphics component. This vulnerability affects Firefox < 147, Firefox ESR < 115.32, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| mozilla | firefox | * | |
| mozilla | firefox | * | |
| mozilla | firefox | * | |
| mozilla | thunderbird | * | |
| mozilla | thunderbird | * |
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FKIE_CVE-2026-0887
Vulnerability from fkie_nvd - Published: 2026-01-13 14:16 - Updated: 2026-01-22 19:07
Severity ?
Summary
Clickjacking issue, information disclosure in the PDF Viewer component. This vulnerability affects Firefox < 147, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| mozilla | firefox | * | |
| mozilla | firefox | * | |
| mozilla | thunderbird | * | |
| mozilla | thunderbird | * |
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FKIE_CVE-2026-0892
Vulnerability from fkie_nvd - Published: 2026-01-13 14:16 - Updated: 2026-01-22 19:14
Severity ?
Summary
Memory safety bugs present in Firefox 146 and Thunderbird 146. 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 affects Firefox < 147 and Thunderbird < 147.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| mozilla | firefox | * | |
| mozilla | thunderbird | * |
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FKIE_CVE-2026-0888
Vulnerability from fkie_nvd - Published: 2026-01-13 14:16 - Updated: 2026-01-22 19:07
Severity ?
Summary
Information disclosure in the XML component. This vulnerability affects Firefox < 147 and Thunderbird < 147.
References
| URL | Tags | ||
|---|---|---|---|
| security@mozilla.org | https://bugzilla.mozilla.org/show_bug.cgi?id=1985996 | Permissions Required | |
| security@mozilla.org | https://www.mozilla.org/security/advisories/mfsa2026-01/ | Vendor Advisory | |
| security@mozilla.org | https://www.mozilla.org/security/advisories/mfsa2026-04/ | Vendor Advisory |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| mozilla | firefox | * | |
| mozilla | thunderbird | * |
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FKIE_CVE-2026-0885
Vulnerability from fkie_nvd - Published: 2026-01-13 14:16 - Updated: 2026-01-22 19:01
Severity ?
Summary
Use-after-free in the JavaScript: GC component. This vulnerability affects Firefox < 147, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| mozilla | firefox | * | |
| mozilla | firefox | * | |
| mozilla | thunderbird | * | |
| mozilla | thunderbird | * |
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FKIE_CVE-2026-0889
Vulnerability from fkie_nvd - Published: 2026-01-13 14:16 - Updated: 2026-01-22 19:09
Severity ?
Summary
Denial-of-service in the DOM: Service Workers component. This vulnerability affects Firefox < 147 and Thunderbird < 147.
References
| URL | Tags | ||
|---|---|---|---|
| security@mozilla.org | https://bugzilla.mozilla.org/show_bug.cgi?id=1999084 | Exploit, Issue Tracking, Vendor Advisory | |
| security@mozilla.org | https://www.mozilla.org/security/advisories/mfsa2026-01/ | Vendor Advisory | |
| security@mozilla.org | https://www.mozilla.org/security/advisories/mfsa2026-04/ | Vendor Advisory |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| mozilla | firefox | * | |
| mozilla | thunderbird | * |
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FKIE_CVE-2026-0891
Vulnerability from fkie_nvd - Published: 2026-01-13 14:16 - Updated: 2026-01-22 19:13
Severity ?
Summary
Memory safety bugs present in Firefox ESR 140.6, Thunderbird ESR 140.6, Firefox 146 and Thunderbird 146. 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 affects Firefox < 147, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| mozilla | firefox | * | |
| mozilla | firefox | * | |
| mozilla | thunderbird | * | |
| mozilla | thunderbird | * |
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FKIE_CVE-2026-0890
Vulnerability from fkie_nvd - Published: 2026-01-13 14:16 - Updated: 2026-01-22 19:11
Severity ?
Summary
Spoofing issue in the DOM: Copy & Paste and Drag & Drop component. This vulnerability affects Firefox < 147, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| mozilla | firefox | * | |
| mozilla | firefox | * | |
| mozilla | thunderbird | * | |
| mozilla | thunderbird | * |
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FKIE_CVE-2026-0881
Vulnerability from fkie_nvd - Published: 2026-01-13 14:16 - Updated: 2026-01-22 18:50
Severity ?
Summary
Sandbox escape in the Messaging System component. This vulnerability affects Firefox < 147 and Thunderbird < 147.
References
| URL | Tags | ||
|---|---|---|---|
| security@mozilla.org | https://bugzilla.mozilla.org/show_bug.cgi?id=2005845 | Permissions Required | |
| security@mozilla.org | https://www.mozilla.org/security/advisories/mfsa2026-01/ | Vendor Advisory | |
| security@mozilla.org | https://www.mozilla.org/security/advisories/mfsa2026-04/ | Vendor Advisory |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| mozilla | firefox | * | |
| mozilla | thunderbird | * |
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FKIE_CVE-2026-0883
Vulnerability from fkie_nvd - Published: 2026-01-13 14:16 - Updated: 2026-01-22 19:03
Severity ?
Summary
Information disclosure in the Networking component. This vulnerability affects Firefox < 147, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| mozilla | firefox | * | |
| mozilla | firefox | * | |
| mozilla | thunderbird | * | |
| mozilla | thunderbird | * |
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FKIE_CVE-2026-0877
Vulnerability from fkie_nvd - Published: 2026-01-13 14:16 - Updated: 2026-01-22 18:52
Severity ?
Summary
Mitigation bypass in the DOM: Security component. This vulnerability affects Firefox < 147, Firefox ESR < 115.32, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| mozilla | firefox | * | |
| mozilla | firefox | * | |
| mozilla | firefox | * | |
| mozilla | thunderbird | * | |
| mozilla | thunderbird | * |
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FKIE_CVE-2026-0879
Vulnerability from fkie_nvd - Published: 2026-01-13 14:16 - Updated: 2026-01-22 18:43
Severity ?
Summary
Sandbox escape due to incorrect boundary conditions in the Graphics component. This vulnerability affects Firefox < 147, Firefox ESR < 115.32, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| mozilla | firefox | * | |
| mozilla | firefox | * | |
| mozilla | firefox | * | |
| mozilla | thunderbird | * | |
| mozilla | thunderbird | * |
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FKIE_CVE-2026-0884
Vulnerability from fkie_nvd - Published: 2026-01-13 14:16 - Updated: 2026-01-22 19:02
Severity ?
Summary
Use-after-free in the JavaScript Engine component. This vulnerability affects Firefox < 147, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| mozilla | firefox | * | |
| mozilla | firefox | * | |
| mozilla | thunderbird | * | |
| mozilla | thunderbird | * |
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FKIE_CVE-2026-0882
Vulnerability from fkie_nvd - Published: 2026-01-13 14:16 - Updated: 2026-01-22 18:46
Severity ?
Summary
Use-after-free in the IPC component. This vulnerability affects Firefox < 147, Firefox ESR < 115.32, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| mozilla | firefox | * | |
| mozilla | firefox | * | |
| mozilla | firefox | * | |
| mozilla | thunderbird | * | |
| mozilla | thunderbird | * |
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FKIE_CVE-2026-0880
Vulnerability from fkie_nvd - Published: 2026-01-13 14:16 - Updated: 2026-01-22 18:44
Severity ?
Summary
Sandbox escape due to integer overflow in the Graphics component. This vulnerability affects Firefox < 147, Firefox ESR < 115.32, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| mozilla | firefox | * | |
| mozilla | firefox | * | |
| mozilla | firefox | * | |
| mozilla | thunderbird | * | |
| mozilla | thunderbird | * |
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FKIE_CVE-2026-0878
Vulnerability from fkie_nvd - Published: 2026-01-13 14:16 - Updated: 2026-01-22 18:59
Severity ?
Summary
Sandbox escape due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability affects Firefox < 147, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| mozilla | firefox | * | |
| mozilla | firefox | * | |
| mozilla | thunderbird | * | |
| mozilla | thunderbird | * |
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CVE-2026-2447 (GCVE-0-2026-2447)
Vulnerability from nvd – Published: 2026-02-16 14:13 – Updated: 2026-02-17 14:53
VLAI?
Title
Heap buffer overflow in libvpx
Summary
Heap buffer overflow in libvpx. This vulnerability affects Firefox < 147.0.4, Firefox ESR < 140.7.1, Firefox ESR < 115.32.1, Thunderbird < 140.7.2, and Thunderbird < 147.0.2.
Severity ?
8.8 (High)
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 147.0.4
(custom)
|
||||||||||||||||||||||
|
||||||||||||||||||||||||
Credits
jayjayjazz
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CVE-2026-0818 (GCVE-0-2026-0818)
Vulnerability from nvd – Published: 2026-01-28 07:39 – Updated: 2026-02-04 09:14
VLAI?
Title
CSS-based exfiltration of the content from partially encrypted emails when allowing remote content
Summary
When a user explicitly requested Thunderbird to decrypt an inline OpenPGP message that was embedded in a text section of an email that was formatted and styled with HTML and CSS, then the decrypted contents were rendered in a context in which the CSS styles from the outer messages were active. If the user had additionally allowed loading of the remote content referenced by the outer email message, and the email was crafted by the sender using a combination of CSS rules and fonts and animations, then it was possible to extract the secret contents of the email. This vulnerability affects Thunderbird < 147.0.1 and Thunderbird < 140.7.1.
Severity ?
4.3 (Medium)
CWE
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Thunderbird |
Affected:
unspecified , < 147.0.1
(custom)
|
|||||||
|
|||||||||
Credits
Leon Trampert, Daniel Weber, Christian Rossow, Michael Schwarz
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CVE-2026-2447 (GCVE-0-2026-2447)
Vulnerability from cvelistv5 – Published: 2026-02-16 14:13 – Updated: 2026-02-17 14:53
VLAI?
Title
Heap buffer overflow in libvpx
Summary
Heap buffer overflow in libvpx. This vulnerability affects Firefox < 147.0.4, Firefox ESR < 140.7.1, Firefox ESR < 115.32.1, Thunderbird < 140.7.2, and Thunderbird < 147.0.2.
Severity ?
8.8 (High)
CWE
- CWE-122 - Heap-based Buffer Overflow
Assigner
References
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 147.0.4
(custom)
|
||||||||||||||||||||||
|
||||||||||||||||||||||||
Credits
jayjayjazz
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CVE-2026-0818 (GCVE-0-2026-0818)
Vulnerability from cvelistv5 – Published: 2026-01-28 07:39 – Updated: 2026-02-04 09:14
VLAI?
Title
CSS-based exfiltration of the content from partially encrypted emails when allowing remote content
Summary
When a user explicitly requested Thunderbird to decrypt an inline OpenPGP message that was embedded in a text section of an email that was formatted and styled with HTML and CSS, then the decrypted contents were rendered in a context in which the CSS styles from the outer messages were active. If the user had additionally allowed loading of the remote content referenced by the outer email message, and the email was crafted by the sender using a combination of CSS rules and fonts and animations, then it was possible to extract the secret contents of the email. This vulnerability affects Thunderbird < 147.0.1 and Thunderbird < 140.7.1.
Severity ?
4.3 (Medium)
CWE
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Thunderbird |
Affected:
unspecified , < 147.0.1
(custom)
|
|||||||
|
|||||||||
Credits
Leon Trampert, Daniel Weber, Christian Rossow, Michael Schwarz
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CVE-2026-0891 (GCVE-0-2026-0891)
Vulnerability from cvelistv5 – Published: 2026-01-13 13:30 – Updated: 2026-01-15 09:31
VLAI?
Title
Memory safety bugs fixed in Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147 and Thunderbird 147
Summary
Memory safety bugs present in Firefox ESR 140.6, Thunderbird ESR 140.6, Firefox 146 and Thunderbird 146. 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 affects Firefox < 147, Firefox ESR < 140.7, Thunderbird < 147, and Thunderbird < 140.7.
Severity ?
8.1 (High)
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Affected:
unspecified , < 147
(custom)
|
|||||||||||||||||
|
|||||||||||||||||||
Credits
Andrew McCreight, Dennis Jackson and the Mozilla Fuzzing Team
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