CVE-2026-92010: 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
The vulnerability identified as CVE-2026-92010 involves privilege escalation due to incorrect boundary conditions within the Graphics: CanvasWebGL component of Mozilla Firefox. This flaw could allow an attacker to gain elevated privileges. Mozilla fixed this vulnerability in Firefox 156 and in Firefox ESR versions 115.41, 140.16, and 153.3. The vendor advisories classify the impact as high and provide detailed references to the bug reports associated with this issue.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker to escalate privileges within the Firefox browser environment, potentially leading to unauthorized actions or access. The impact is rated high by Mozilla, indicating significant security implications if exploited.
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 to these versions or later to remediate the issue. No additional mitigation steps are indicated by the vendor advisories.
CVE-2026-92010: 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
The vulnerability identified as CVE-2026-92010 involves privilege escalation due to incorrect boundary conditions within the Graphics: CanvasWebGL component of Mozilla Firefox. This flaw could allow an attacker to gain elevated privileges. Mozilla fixed this vulnerability in Firefox 156 and in Firefox ESR versions 115.41, 140.16, and 153.3. The vendor advisories classify the impact as high and provide detailed references to the bug reports associated with this issue.
Potential Impact
Successful exploitation of this vulnerability could allow an attacker to escalate privileges within the Firefox browser environment, potentially leading to unauthorized actions or access. The impact is rated high by Mozilla, indicating significant security implications if exploited.
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 to these versions or later to remediate the issue. No additional mitigation steps are indicated by the vendor advisories.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mozilla
- Date Reserved
- 2026-09-15T12:33:29.280Z
- 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: 6aa93e5e55bf5e2cf5d30fca
Added to database: 09/15/2026, 12:47:26 UTC
Last enriched: 09/15/2026, 13:33:10 UTC
Last updated: 09/15/2026, 22:11:29 UTC
Views: 3
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