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alsa-2026:3338
Vulnerability from osv_almalinux
Published
2026-02-25 00:00
Modified
2026-03-02 12:54
Summary
Important: firefox security update
Details
Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability.
Security Fix(es):
- libvpx: Heap buffer overflow in libvpx (CVE-2026-2447)
- firefox: Invalid pointer in the JavaScript Engine component (CVE-2026-2785)
- firefox: Memory safety bugs fixed in Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148 (CVE-2026-2793)
- firefox: Undefined behavior in the DOM: Core & HTML component (CVE-2026-2771)
- firefox: Integer overflow in the Audio/Video component (CVE-2026-2774)
- firefox: Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software (CVE-2026-2776)
- firefox: Integer overflow in the Libraries component in NSS (CVE-2026-2781)
- firefox: Use-after-free in the JavaScript Engine: JIT component (CVE-2026-2766)
- firefox: Use-after-free in the Storage: IndexedDB component (CVE-2026-2769)
- firefox: Use-after-free in the DOM: Window and Location component (CVE-2026-2787)
- firefox: Sandbox escape in the Storage: IndexedDB component (CVE-2026-2768)
- firefox: Information disclosure due to JIT miscompilation in the JavaScript Engine: JIT component (CVE-2026-2783)
- firefox: Incorrect boundary conditions in the Audio/Video: GMP component (CVE-2026-2788)
- firefox: Mitigation bypass in the DOM: Security component (CVE-2026-2784)
- firefox: Incorrect boundary conditions in the Graphics: ImageLib component (CVE-2026-2759)
- firefox: Integer overflow in the JavaScript: Standard Library component (CVE-2026-2762)
- firefox: Sandbox escape in the Graphics: WebRender component (CVE-2026-2761)
- firefox: Privilege escalation in the Messaging System component (CVE-2026-2777)
- firefox: Same-origin policy bypass in the Networking: JAR component (CVE-2026-2790)
- firefox: Mitigation bypass in the DOM: HTML Parser component (CVE-2026-2775)
- firefox: Use-after-free in the JavaScript Engine component (CVE-2026-2763)
- firefox: Memory safety bugs fixed in Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148 (CVE-2026-2792)
- firefox: Incorrect boundary conditions in the Web Audio component (CVE-2026-2773)
- firefox: Use-after-free in the JavaScript Engine component (CVE-2026-2786)
- firefox: Use-after-free in the Graphics: ImageLib component (CVE-2026-2789)
- firefox: thunderbird: Incorrect boundary conditions in the WebRTC: Audio/Video component (CVE-2026-2757)
- firefox: Sandbox escape due to incorrect boundary conditions in the Graphics: WebRender component (CVE-2026-2760)
- firefox: Use-after-free in the Audio/Video: Playback component (CVE-2026-2772)
- firefox: Incorrect boundary conditions in the Networking: JAR component (CVE-2026-2779)
- firefox: Use-after-free in the JavaScript: WebAssembly component (CVE-2026-2767)
- firefox: JIT miscompilation, use-after-free in the JavaScript Engine: JIT component (CVE-2026-2764)
- firefox: Privilege escalation in the Netmonitor component (CVE-2026-2782)
- firefox: Use-after-free in the JavaScript Engine component (CVE-2026-2765)
- firefox: Privilege escalation in the Netmonitor component (CVE-2026-2780)
- firefox: Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component (CVE-2026-2778)
- firefox: Use-after-free in the JavaScript: GC component (CVE-2026-2758)
- firefox: Mitigation bypass in the Networking: Cache component (CVE-2026-2791)
- firefox: Use-after-free in the DOM: Bindings (WebIDL) component (CVE-2026-2770)
For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.
References
{
"affected": [
{
"package": {
"ecosystem": "AlmaLinux:8",
"name": "firefox"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "140.8.0-2.el8_10.alma.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"details": "Mozilla Firefox is an open-source web browser, designed for standards compliance, performance, and portability. \n\nSecurity Fix(es): \n\n * libvpx: Heap buffer overflow in libvpx (CVE-2026-2447)\n * firefox: Invalid pointer in the JavaScript Engine component (CVE-2026-2785)\n * firefox: Memory safety bugs fixed in Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148 (CVE-2026-2793)\n * firefox: Undefined behavior in the DOM: Core \u0026 HTML component (CVE-2026-2771)\n * firefox: Integer overflow in the Audio/Video component (CVE-2026-2774)\n * firefox: Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software (CVE-2026-2776)\n * firefox: Integer overflow in the Libraries component in NSS (CVE-2026-2781)\n * firefox: Use-after-free in the JavaScript Engine: JIT component (CVE-2026-2766)\n * firefox: Use-after-free in the Storage: IndexedDB component (CVE-2026-2769)\n * firefox: Use-after-free in the DOM: Window and Location component (CVE-2026-2787)\n * firefox: Sandbox escape in the Storage: IndexedDB component (CVE-2026-2768)\n * firefox: Information disclosure due to JIT miscompilation in the JavaScript Engine: JIT component (CVE-2026-2783)\n * firefox: Incorrect boundary conditions in the Audio/Video: GMP component (CVE-2026-2788)\n * firefox: Mitigation bypass in the DOM: Security component (CVE-2026-2784)\n * firefox: Incorrect boundary conditions in the Graphics: ImageLib component (CVE-2026-2759)\n * firefox: Integer overflow in the JavaScript: Standard Library component (CVE-2026-2762)\n * firefox: Sandbox escape in the Graphics: WebRender component (CVE-2026-2761)\n * firefox: Privilege escalation in the Messaging System component (CVE-2026-2777)\n * firefox: Same-origin policy bypass in the Networking: JAR component (CVE-2026-2790)\n * firefox: Mitigation bypass in the DOM: HTML Parser component (CVE-2026-2775)\n * firefox: Use-after-free in the JavaScript Engine component (CVE-2026-2763)\n * firefox: Memory safety bugs fixed in Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148 (CVE-2026-2792)\n * firefox: Incorrect boundary conditions in the Web Audio component (CVE-2026-2773)\n * firefox: Use-after-free in the JavaScript Engine component (CVE-2026-2786)\n * firefox: Use-after-free in the Graphics: ImageLib component (CVE-2026-2789)\n * firefox: thunderbird: Incorrect boundary conditions in the WebRTC: Audio/Video component (CVE-2026-2757)\n * firefox: Sandbox escape due to incorrect boundary conditions in the Graphics: WebRender component (CVE-2026-2760)\n * firefox: Use-after-free in the Audio/Video: Playback component (CVE-2026-2772)\n * firefox: Incorrect boundary conditions in the Networking: JAR component (CVE-2026-2779)\n * firefox: Use-after-free in the JavaScript: WebAssembly component (CVE-2026-2767)\n * firefox: JIT miscompilation, use-after-free in the JavaScript Engine: JIT component (CVE-2026-2764)\n * firefox: Privilege escalation in the Netmonitor component (CVE-2026-2782)\n * firefox: Use-after-free in the JavaScript Engine component (CVE-2026-2765)\n * firefox: Privilege escalation in the Netmonitor component (CVE-2026-2780)\n * firefox: Sandbox escape due to incorrect boundary conditions in the DOM: Core \u0026 HTML component (CVE-2026-2778)\n * firefox: Use-after-free in the JavaScript: GC component (CVE-2026-2758)\n * firefox: Mitigation bypass in the Networking: Cache component (CVE-2026-2791)\n * firefox: Use-after-free in the DOM: Bindings (WebIDL) component (CVE-2026-2770)\n\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.\n",
"id": "ALSA-2026:3338",
"modified": "2026-03-02T12:54:29Z",
"published": "2026-02-25T00:00:00Z",
"references": [
{
"type": "ADVISORY",
"url": "https://access.redhat.com/errata/RHSA-2026:3338"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-2447"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-2757"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-2758"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-2759"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-2760"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-2761"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-2762"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-2763"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-2764"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-2765"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-2766"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-2767"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-2768"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-2769"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-2770"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-2771"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-2772"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-2773"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-2774"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-2775"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-2776"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-2777"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-2778"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-2779"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-2780"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-2781"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-2782"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-2783"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-2784"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-2785"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-2786"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-2787"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-2788"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-2789"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-2790"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-2791"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-2792"
},
{
"type": "REPORT",
"url": "https://access.redhat.com/security/cve/CVE-2026-2793"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2440219"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2442284"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2442287"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2442288"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2442290"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2442291"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2442292"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2442294"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2442295"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2442297"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2442298"
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{
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"url": "https://bugzilla.redhat.com/2442300"
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{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2442302"
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{
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"url": "https://bugzilla.redhat.com/2442304"
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"url": "https://bugzilla.redhat.com/2442312"
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"url": "https://bugzilla.redhat.com/2442313"
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"url": "https://bugzilla.redhat.com/2442314"
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{
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{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2442319"
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{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2442320"
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{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2442322"
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{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2442324"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2442325"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2442326"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2442327"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2442328"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2442329"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2442331"
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{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2442333"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2442334"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2442335"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2442337"
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{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2442342"
},
{
"type": "REPORT",
"url": "https://bugzilla.redhat.com/2442343"
},
{
"type": "ADVISORY",
"url": "https://errata.almalinux.org/8/ALSA-2026-3338.html"
}
],
"related": [
"CVE-2026-2447",
"CVE-2026-2785",
"CVE-2026-2793",
"CVE-2026-2771",
"CVE-2026-2774",
"CVE-2026-2776",
"CVE-2026-2781",
"CVE-2026-2766",
"CVE-2026-2769",
"CVE-2026-2787",
"CVE-2026-2768",
"CVE-2026-2783",
"CVE-2026-2788",
"CVE-2026-2784",
"CVE-2026-2759",
"CVE-2026-2762",
"CVE-2026-2761",
"CVE-2026-2777",
"CVE-2026-2790",
"CVE-2026-2775",
"CVE-2026-2763",
"CVE-2026-2792",
"CVE-2026-2773",
"CVE-2026-2786",
"CVE-2026-2789",
"CVE-2026-2757",
"CVE-2026-2760",
"CVE-2026-2772",
"CVE-2026-2779",
"CVE-2026-2767",
"CVE-2026-2764",
"CVE-2026-2782",
"CVE-2026-2765",
"CVE-2026-2780",
"CVE-2026-2778",
"CVE-2026-2758",
"CVE-2026-2791",
"CVE-2026-2770"
],
"summary": "Important: firefox security update"
}
CVE-2026-2764 (GCVE-0-2026-2764)
Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-04-13 13:52
VLAI?
EPSS
Title
JIT miscompilation, use-after-free in the JavaScript Engine: JIT component
Summary
JIT miscompilation, use-after-free in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
Severity ?
9.8 (Critical)
CWE
- CWE-416 - Use After Free
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.33 , ≤ 115.*
(rpm)
Unaffected: 140.8 , ≤ 140.* (rpm) Unaffected: 148 , ≤ * (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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"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
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"versions": [
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{
"product": "Thunderbird",
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"providerMetadata": {
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"shortName": "mozilla"
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"url": "https://bugzilla.mozilla.org/show_bug.cgi?id=2012608"
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{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-13/"
},
{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-14/"
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{
"url": "https://www.mozilla.org/security/advisories/mfsa2026-15/"
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"title": "JIT miscompilation, use-after-free in the JavaScript Engine: JIT component"
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"datePublished": "2026-02-24T13:33:03.207Z",
"dateReserved": "2026-02-19T15:05:32.669Z",
"dateUpdated": "2026-04-13T13:52:30.063Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
CVE-2026-2782 (GCVE-0-2026-2782)
Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-04-13 13:53
VLAI?
EPSS
Title
Privilege escalation in the Netmonitor component
Summary
Privilege escalation in the Netmonitor component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
Severity ?
8.8 (High)
CWE
- CWE-269 - Improper Privilege Management
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.8 , ≤ 140.*
(rpm)
Unaffected: 148 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Cody
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CVE-2026-2781 (GCVE-0-2026-2781)
Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-04-13 13:53
VLAI?
EPSS
Title
Integer overflow in the Libraries component in NSS
Summary
Integer overflow in the Libraries component in NSS. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
Severity ?
8.8 (High)
CWE
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.8 , ≤ 140.*
(rpm)
Unaffected: 148 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Clay Ver Valen
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CVE-2026-2775 (GCVE-0-2026-2775)
Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-04-13 13:52
VLAI?
EPSS
Title
Mitigation bypass in the DOM: HTML Parser component
Summary
Mitigation bypass in the DOM: HTML Parser component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
Severity ?
9.8 (Critical)
CWE
- CWE-288 - Authentication Bypass Using an Alternate Path or Channel
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.33 , ≤ 115.*
(rpm)
Unaffected: 140.8 , ≤ 140.* (rpm) Unaffected: 148 , ≤ * (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-2026-2763 (GCVE-0-2026-2763)
Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-04-13 13:52
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 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
Severity ?
9.8 (Critical)
CWE
- CWE-416 - Use After Free
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.33 , ≤ 115.*
(rpm)
Unaffected: 140.8 , ≤ 140.* (rpm) Unaffected: 148 , ≤ * (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-2026-2791 (GCVE-0-2026-2791)
Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-04-13 13:53
VLAI?
EPSS
Title
Mitigation bypass in the Networking: Cache component
Summary
Mitigation bypass in the Networking: Cache component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
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:
140.8 , ≤ 140.*
(rpm)
Unaffected: 148 , ≤ * (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-2026-2789 (GCVE-0-2026-2789)
Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-04-13 13:53
VLAI?
EPSS
Title
Use-after-free in the Graphics: ImageLib component
Summary
Use-after-free in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
Severity ?
8.8 (High)
CWE
- CWE-416 - Use After Free
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.33 , ≤ 115.*
(rpm)
Unaffected: 140.8 , ≤ 140.* (rpm) Unaffected: 148 , ≤ * (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-2026-2759 (GCVE-0-2026-2759)
Vulnerability from cvelistv5 – Published: 2026-02-24 13:32 – Updated: 2026-04-13 13:52
VLAI?
EPSS
Title
Incorrect boundary conditions in the Graphics: ImageLib component
Summary
Incorrect boundary conditions in the Graphics: ImageLib component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
Severity ?
9.8 (Critical)
CWE
- CWE-1384 - Improper Handling of Physical or Environmental Conditions
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.33 , ≤ 115.*
(rpm)
Unaffected: 140.8 , ≤ 140.* (rpm) Unaffected: 148 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Steven Julian
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CVE-2026-2792 (GCVE-0-2026-2792)
Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-04-13 13:53
VLAI?
EPSS
Title
Memory safety bugs fixed in Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148
Summary
Memory safety bugs present in Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147 and Thunderbird 147. 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 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
Severity ?
9.8 (Critical)
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.8 , ≤ 140.*
(rpm)
Unaffected: 148 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Andrew McCreight, Maurice Dauer, Olli Pettay, Ryan Hunt
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CVE-2026-2758 (GCVE-0-2026-2758)
Vulnerability from cvelistv5 – Published: 2026-02-24 13:32 – Updated: 2026-04-13 13:52
VLAI?
EPSS
Title
Use-after-free in the JavaScript: GC component
Summary
Use-after-free in the JavaScript: GC component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
Severity ?
9.8 (Critical)
CWE
- CWE-416 - Use After Free
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.33 , ≤ 115.*
(rpm)
Unaffected: 140.8 , ≤ 140.* (rpm) Unaffected: 148 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Gary Kwong
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CVE-2026-2780 (GCVE-0-2026-2780)
Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-04-13 13:53
VLAI?
EPSS
Title
Privilege escalation in the Netmonitor component
Summary
Privilege escalation in the Netmonitor component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
Severity ?
8.8 (High)
CWE
- CWE-269 - Improper Privilege Management
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.8 , ≤ 140.*
(rpm)
Unaffected: 148 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
RyotaK of GMO Flatt Security Inc.
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CVE-2026-2771 (GCVE-0-2026-2771)
Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-04-13 13:52
VLAI?
EPSS
Title
Undefined behavior in the DOM: Core & HTML component
Summary
Undefined behavior in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
Severity ?
9.8 (Critical)
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.33 , ≤ 115.*
(rpm)
Unaffected: 140.8 , ≤ 140.* (rpm) Unaffected: 148 , ≤ * (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-2026-2785 (GCVE-0-2026-2785)
Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-04-13 13:53
VLAI?
EPSS
Title
Invalid pointer in the JavaScript Engine component
Summary
Invalid pointer in the JavaScript Engine component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
Severity ?
8.8 (High)
CWE
- CWE-824 - Access of Uninitialized Pointer
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.8 , ≤ 140.*
(rpm)
Unaffected: 148 , ≤ * (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-2026-2762 (GCVE-0-2026-2762)
Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-04-13 13:53
VLAI?
EPSS
Title
Integer overflow in the JavaScript: Standard Library component
Summary
Integer overflow in the JavaScript: Standard Library component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
Severity ?
9.8 (Critical)
CWE
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.8 , ≤ 140.*
(rpm)
Unaffected: 148 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
André Bargull
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CVE-2026-2447 (GCVE-0-2026-2447)
Vulnerability from cvelistv5 – Published: 2026-02-16 14:13 – Updated: 2026-04-13 13:53
VLAI?
EPSS
Title
Heap buffer overflow in libvpx
Summary
Heap buffer overflow in libvpx. This vulnerability was fixed in 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 |
Unaffected:
115.32.1 , ≤ 115.*
(rpm)
Unaffected: 140.7.1 , ≤ 140.* (rpm) Unaffected: 147.0.4 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
jayjayjazz
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CVE-2026-2784 (GCVE-0-2026-2784)
Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-04-13 13:53
VLAI?
EPSS
Title
Mitigation bypass in the DOM: Security component
Summary
Mitigation bypass in the DOM: Security component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
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:
140.8 , ≤ 140.*
(rpm)
Unaffected: 148 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
D. Santos
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CVE-2026-2773 (GCVE-0-2026-2773)
Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-04-13 13:52
VLAI?
EPSS
Title
Incorrect boundary conditions in the Web Audio component
Summary
Incorrect boundary conditions in the Web Audio component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
Severity ?
9.8 (Critical)
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.33 , ≤ 115.*
(rpm)
Unaffected: 140.8 , ≤ 140.* (rpm) Unaffected: 148 , ≤ * (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-2026-2793 (GCVE-0-2026-2793)
Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-04-13 13:53
VLAI?
EPSS
Title
Memory safety bugs fixed in Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird ESR 140.8, Firefox 148 and Thunderbird 148
Summary
Memory safety bugs present in Firefox ESR 115.32, Firefox ESR 140.7, Thunderbird ESR 140.7, Firefox 147 and Thunderbird 147. 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 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
Severity ?
9.8 (Critical)
CWE
- CWE-787 - Out-of-bounds Write
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.33 , ≤ 115.*
(rpm)
Unaffected: 140.8 , ≤ 140.* (rpm) Unaffected: 148 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Andrew McCreight, Christian Holler
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CVE-2026-2777 (GCVE-0-2026-2777)
Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-04-13 13:52
VLAI?
EPSS
Title
Privilege escalation in the Messaging System component
Summary
Privilege escalation in the Messaging System component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
Severity ?
9.8 (Critical)
CWE
- CWE-269 - Improper Privilege Management
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.33 , ≤ 115.*
(rpm)
Unaffected: 140.8 , ≤ 140.* (rpm) Unaffected: 148 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Richard Belisle
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CVE-2026-2788 (GCVE-0-2026-2788)
Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-04-13 13:52
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 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
Severity ?
9.8 (Critical)
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.33 , ≤ 115.*
(rpm)
Unaffected: 140.8 , ≤ 140.* (rpm) Unaffected: 148 , ≤ * (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-2026-2770 (GCVE-0-2026-2770)
Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-04-13 13:52
VLAI?
EPSS
Title
Use-after-free in the DOM: Bindings (WebIDL) component
Summary
Use-after-free in the DOM: Bindings (WebIDL) component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
Severity ?
8.8 (High)
CWE
- CWE-416 - Use After Free
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.33 , ≤ 115.*
(rpm)
Unaffected: 140.8 , ≤ 140.* (rpm) Unaffected: 148 , ≤ * (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-2026-2767 (GCVE-0-2026-2767)
Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-04-13 13:53
VLAI?
EPSS
Title
Use-after-free in the JavaScript: WebAssembly component
Summary
Use-after-free in the JavaScript: WebAssembly component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
Severity ?
8.8 (High)
CWE
- CWE-416 - Use After Free
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.8 , ≤ 140.*
(rpm)
Unaffected: 148 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Sajeeb Lohani
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CVE-2026-2772 (GCVE-0-2026-2772)
Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-04-13 13:52
VLAI?
EPSS
Title
Use-after-free in the Audio/Video: Playback component
Summary
Use-after-free in the Audio/Video: Playback component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
Severity ?
8.8 (High)
CWE
- CWE-416 - Use After Free
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.33 , ≤ 115.*
(rpm)
Unaffected: 140.8 , ≤ 140.* (rpm) Unaffected: 148 , ≤ * (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-2026-2760 (GCVE-0-2026-2760)
Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-04-13 13:52
VLAI?
EPSS
Title
Sandbox escape due to incorrect boundary conditions in the Graphics: WebRender component
Summary
Sandbox escape due to incorrect boundary conditions in the Graphics: WebRender component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
Severity ?
10 (Critical)
CWE
- CWE-1384 - Improper Handling of Physical or Environmental Conditions
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.33 , ≤ 115.*
(rpm)
Unaffected: 140.8 , ≤ 140.* (rpm) Unaffected: 148 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Oskar L
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CVE-2026-2761 (GCVE-0-2026-2761)
Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-04-13 13:52
VLAI?
EPSS
Title
Sandbox escape in the Graphics: WebRender component
Summary
Sandbox escape in the Graphics: WebRender component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
Severity ?
10 (Critical)
CWE
- CWE-693 - Protection Mechanism Failure
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.33 , ≤ 115.*
(rpm)
Unaffected: 140.8 , ≤ 140.* (rpm) Unaffected: 148 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Oskar L
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CVE-2026-2776 (GCVE-0-2026-2776)
Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-04-13 13:52
VLAI?
EPSS
Title
Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software
Summary
Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
Severity ?
10 (Critical)
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.33 , ≤ 115.*
(rpm)
Unaffected: 140.8 , ≤ 140.* (rpm) Unaffected: 148 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Sajeeb Lohani
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CVE-2026-2766 (GCVE-0-2026-2766)
Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-04-13 13:53
VLAI?
EPSS
Title
Use-after-free in the JavaScript Engine: JIT component
Summary
Use-after-free in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
Severity ?
9.8 (Critical)
CWE
- CWE-416 - Use After Free
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.8 , ≤ 140.*
(rpm)
Unaffected: 148 , ≤ * (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-2026-2757 (GCVE-0-2026-2757)
Vulnerability from cvelistv5 – Published: 2026-02-24 13:32 – Updated: 2026-04-14 15:11
VLAI?
EPSS
Title
Incorrect boundary conditions in the WebRTC: Audio/Video component
Summary
Incorrect boundary conditions in the WebRTC: Audio/Video component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
Severity ?
9.8 (Critical)
CWE
- CWE-1384 - Improper Handling of Physical or Environmental Conditions
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.33 , ≤ 115.*
(rpm)
Unaffected: 140.8 , ≤ 140.* (rpm) Unaffected: 148 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Igor Morgenstern
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CVE-2026-2769 (GCVE-0-2026-2769)
Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-04-13 13:52
VLAI?
EPSS
Title
Use-after-free in the Storage: IndexedDB component
Summary
Use-after-free in the Storage: IndexedDB component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
Severity ?
8.8 (High)
CWE
- CWE-416 - Use After Free
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.33 , ≤ 115.*
(rpm)
Unaffected: 140.8 , ≤ 140.* (rpm) Unaffected: 148 , ≤ * (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-2026-2786 (GCVE-0-2026-2786)
Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-04-13 13:53
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 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
Severity ?
8.8 (High)
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.8 , ≤ 140.*
(rpm)
Unaffected: 148 , ≤ * (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-2026-2768 (GCVE-0-2026-2768)
Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-04-13 13:53
VLAI?
EPSS
Title
Sandbox escape in the Storage: IndexedDB component
Summary
Sandbox escape in the Storage: IndexedDB component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
Severity ?
10 (Critical)
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.8 , ≤ 140.*
(rpm)
Unaffected: 148 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Sajeeb Lohani
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CVE-2026-2774 (GCVE-0-2026-2774)
Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-04-13 13:52
VLAI?
EPSS
Title
Integer overflow in the Audio/Video component
Summary
Integer overflow in the Audio/Video component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
Severity ?
8.8 (High)
CWE
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.33 , ≤ 115.*
(rpm)
Unaffected: 140.8 , ≤ 140.* (rpm) Unaffected: 148 , ≤ * (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-2026-2778 (GCVE-0-2026-2778)
Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-04-13 13:52
VLAI?
EPSS
Title
Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component
Summary
Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
Severity ?
10 (Critical)
CWE
- CWE-119 - Improper Restriction of Operations within the Bounds of a Memory Buffer
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.33 , ≤ 115.*
(rpm)
Unaffected: 140.8 , ≤ 140.* (rpm) Unaffected: 148 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Sajeeb Lohani
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CVE-2026-2787 (GCVE-0-2026-2787)
Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-04-13 13:52
VLAI?
EPSS
Title
Use-after-free in the DOM: Window and Location component
Summary
Use-after-free in the DOM: Window and Location component. This vulnerability was fixed in Firefox 148, Firefox ESR 115.33, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
Severity ?
8.8 (High)
CWE
- CWE-416 - Use After Free
Assigner
References
| URL | Tags | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
||||||||||||||||||||
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
115.33 , ≤ 115.*
(rpm)
Unaffected: 140.8 , ≤ 140.* (rpm) Unaffected: 148 , ≤ * (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-2026-2779 (GCVE-0-2026-2779)
Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-04-13 13:53
VLAI?
EPSS
Title
Incorrect boundary conditions in the Networking: JAR component
Summary
Incorrect boundary conditions in the Networking: JAR component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
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:
140.8 , ≤ 140.*
(rpm)
Unaffected: 148 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Alex Mayorga
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CVE-2026-2765 (GCVE-0-2026-2765)
Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-04-13 13:53
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 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
Severity ?
9.8 (Critical)
CWE
- CWE-416 - Use After Free
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.8 , ≤ 140.*
(rpm)
Unaffected: 148 , ≤ * (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-2026-2783 (GCVE-0-2026-2783)
Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-04-13 13:53
VLAI?
EPSS
Title
Information disclosure due to JIT miscompilation in the JavaScript Engine: JIT component
Summary
Information disclosure due to JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
Severity ?
6.5 (Medium)
CWE
- CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.8 , ≤ 140.*
(rpm)
Unaffected: 148 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
x0e
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CVE-2026-2790 (GCVE-0-2026-2790)
Vulnerability from cvelistv5 – Published: 2026-02-24 13:33 – Updated: 2026-04-13 13:53
VLAI?
EPSS
Title
Same-origin policy bypass in the Networking: JAR component
Summary
Same-origin policy bypass in the Networking: JAR component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
Severity ?
8.8 (High)
CWE
- CWE-346 - Origin Validation Error
Assigner
References
Impacted products
| Vendor | Product | Version | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Mozilla | Firefox |
Unaffected:
140.8 , ≤ 140.*
(rpm)
Unaffected: 148 , ≤ * (rpm) |
|||||||
|
|||||||||
Credits
Surya Dev Singh
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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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