CVE-2026-92006: Vulnerability in Mozilla Firefox
Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 140.16.
AI Analysis
Technical Summary
CVE-2026-92006 is a security vulnerability in Mozilla Firefox affecting the Graphics: CanvasWebGL component. It arises from incorrect boundary conditions that lead to privilege escalation. Mozilla has addressed this issue with patches released in Firefox 156 and Firefox ESR 115.41, 140.16, and 153.3. The vendor advisory classifies the impact as high and provides multiple references to bug reports for this and related vulnerabilities. No active exploitation has been reported.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker to escalate privileges within the Firefox browser, potentially leading to unauthorized actions or access within the browser context. The vendor rates the impact as high. There are no reports of exploitation in the wild.
Mitigation Recommendations
Mozilla has released official fixes for this vulnerability in Firefox 156 and Firefox ESR versions 115.41, 140.16, and 153.3. Users and administrators should update affected Firefox installations to these versions or later to remediate the issue. No additional mitigation steps are indicated by the vendor.
CVE-2026-92006: Vulnerability in Mozilla Firefox
Description
Privilege escalation due to incorrect boundary conditions in the Graphics: CanvasWebGL component. This vulnerability was fixed in Firefox 156, Firefox ESR 115.41, Firefox ESR 140.16, Firefox ESR 153.3, Thunderbird 156, and Thunderbird 140.16.
CVSS v3.1
Score 8.8high
Affected software
Mozilla
Firefox
Mozilla
Thunderbird
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-92006 is a security vulnerability in Mozilla Firefox affecting the Graphics: CanvasWebGL component. It arises from incorrect boundary conditions that lead to privilege escalation. Mozilla has addressed this issue with patches released in Firefox 156 and Firefox ESR 115.41, 140.16, and 153.3. The vendor advisory classifies the impact as high and provides multiple references to bug reports for this and related vulnerabilities. No active exploitation has been reported.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker to escalate privileges within the Firefox browser, potentially leading to unauthorized actions or access within the browser context. The vendor rates the impact as high. There are no reports of exploitation in the wild.
Mitigation Recommendations
Mozilla has released official fixes for this vulnerability in Firefox 156 and Firefox ESR versions 115.41, 140.16, and 153.3. Users and administrators should update affected Firefox installations to these versions or later to remediate the issue. No additional mitigation steps are indicated by the vendor.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mozilla
- Date Reserved
- 2026-09-15T12:33:25.102Z
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://www.mozilla.org/security/advisories/mfsa2026-90/","vendor":"Mozilla"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-91/","vendor":"Mozilla"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-92/","vendor":"Mozilla"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-93/","vendor":"Mozilla"}]
Threat ID: 6aa93e5e55bf5e2cf5d30fc6
Added to database: 09/15/2026, 12:47:26 UTC
Last enriched: 09/15/2026, 13:46:39 UTC
Last updated: 09/16/2026, 03:18:35 UTC
Views: 5
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