CVE-2026-92024: Vulnerability in Mozilla Firefox
Use-after-free in the SVG 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-2026-92024 is a use-after-free vulnerability identified in the SVG component of Mozilla Firefox. Use-after-free vulnerabilities occur when a program continues to use a pointer after the memory it points to has been freed, potentially leading to memory corruption and security issues. Mozilla has fixed this vulnerability in Firefox 156 and Firefox ESR versions 115.41, 140.16, and 153.3. The vendor advisory categorizes the impact as high but does not report any known active exploitation in the wild. Multiple related vulnerabilities were fixed simultaneously in these releases.
Potential Impact
The vulnerability could allow an attacker to exploit memory corruption in the SVG component, potentially leading to arbitrary code execution or other security impacts. However, there are no known exploits in the wild at this time. The impact is rated high by Mozilla, indicating a serious security concern if left unpatched.
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 required beyond applying these updates.
CVE-2026-92024: Vulnerability in Mozilla Firefox
Description
Use-after-free in the SVG 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.
Affected software
Mozilla
Firefox
Mozilla
Thunderbird
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-92024 is a use-after-free vulnerability identified in the SVG component of Mozilla Firefox. Use-after-free vulnerabilities occur when a program continues to use a pointer after the memory it points to has been freed, potentially leading to memory corruption and security issues. Mozilla has fixed this vulnerability in Firefox 156 and Firefox ESR versions 115.41, 140.16, and 153.3. The vendor advisory categorizes the impact as high but does not report any known active exploitation in the wild. Multiple related vulnerabilities were fixed simultaneously in these releases.
Potential Impact
The vulnerability could allow an attacker to exploit memory corruption in the SVG component, potentially leading to arbitrary code execution or other security impacts. However, there are no known exploits in the wild at this time. The impact is rated high by Mozilla, indicating a serious security concern if left unpatched.
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 required beyond applying these updates.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mozilla
- Date Reserved
- 2026-09-15T12:33:44.136Z
- 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: 6aa93e6055bf5e2cf5d30fe2
Added to database: 09/15/2026, 12:47:28 UTC
Last enriched: 09/15/2026, 13:32:08 UTC
Last updated: 09/16/2026, 04:01:24 UTC
Views: 10
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.