CVE-2026-92035: Vulnerability in Mozilla Firefox
Sandbox escape due to incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, and Thunderbird 156.
AI Analysis
Technical Summary
CVE-2026-92035 is a sandbox escape vulnerability in Mozilla Firefox's Graphics component due to incorrect boundary conditions. The flaw could allow an attacker to escape the sandbox containment, potentially leading to privilege escalation or unauthorized code execution. Mozilla fixed this vulnerability in Firefox 156 and Firefox ESR 153.3 as part of a security advisory addressing multiple high-impact bugs. The vendor advisory confirms the fix and categorizes the impact as high.
Potential Impact
The vulnerability enables sandbox escape, which undermines the security boundary intended to isolate Firefox processes. This can lead to privilege escalation or execution of malicious code outside the restricted sandbox environment. The impact is rated high by Mozilla, indicating serious security implications if exploited.
Mitigation Recommendations
Mozilla has released official fixes for this vulnerability in Firefox 156 and Firefox ESR 153.3. Users and administrators should update to these versions or later to remediate the issue. No additional mitigation steps are required beyond applying the official update.
CVE-2026-92035: Vulnerability in Mozilla Firefox
Description
Sandbox escape due to incorrect boundary conditions in the Graphics component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, and Thunderbird 156.
Affected software
Mozilla
Firefox
Mozilla
Thunderbird
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-92035 is a sandbox escape vulnerability in Mozilla Firefox's Graphics component due to incorrect boundary conditions. The flaw could allow an attacker to escape the sandbox containment, potentially leading to privilege escalation or unauthorized code execution. Mozilla fixed this vulnerability in Firefox 156 and Firefox ESR 153.3 as part of a security advisory addressing multiple high-impact bugs. The vendor advisory confirms the fix and categorizes the impact as high.
Potential Impact
The vulnerability enables sandbox escape, which undermines the security boundary intended to isolate Firefox processes. This can lead to privilege escalation or execution of malicious code outside the restricted sandbox environment. The impact is rated high by Mozilla, indicating serious security implications if exploited.
Mitigation Recommendations
Mozilla has released official fixes for this vulnerability in Firefox 156 and Firefox ESR 153.3. Users and administrators should update to these versions or later to remediate the issue. No additional mitigation steps are required beyond applying the official update.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mozilla
- Date Reserved
- 2026-09-15T12:33:55.496Z
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://www.mozilla.org/security/advisories/mfsa2026-90/","vendor":"Mozilla"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-93/","vendor":"Mozilla"}]
Threat ID: 6aa93e6355bf5e2cf5d30ff3
Added to database: 09/15/2026, 12:47:31 UTC
Last enriched: 09/15/2026, 13:17:53 UTC
Last updated: 09/16/2026, 03:24:31 UTC
Views: 9
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