CVE-2026-92046: Vulnerability in Mozilla Firefox
Use-after-free in the Graphics component. This vulnerability was fixed in Firefox 156, Firefox ESR 153.3, and Thunderbird 156.
AI Analysis
Technical Summary
This vulnerability involves a use-after-free condition in the Graphics 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. Mozilla fixed this issue in Firefox 156 and Firefox ESR 153.3 as documented in their security advisory MFSA2026-90. No active exploits in the wild have been reported for this vulnerability.
Potential Impact
The vulnerability is classified with high impact by Mozilla, indicating that successful exploitation could lead to significant security consequences such as memory corruption. However, no known exploits are currently active in the wild. The fix mitigates the risk by correcting the use-after-free condition in the affected component.
Mitigation Recommendations
Mozilla has released an official fix 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. Since the vulnerability is fixed, no additional mitigation steps are required beyond applying the update.
CVE-2026-92046: Vulnerability in Mozilla Firefox
Description
Use-after-free 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
This vulnerability involves a use-after-free condition in the Graphics 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. Mozilla fixed this issue in Firefox 156 and Firefox ESR 153.3 as documented in their security advisory MFSA2026-90. No active exploits in the wild have been reported for this vulnerability.
Potential Impact
The vulnerability is classified with high impact by Mozilla, indicating that successful exploitation could lead to significant security consequences such as memory corruption. However, no known exploits are currently active in the wild. The fix mitigates the risk by correcting the use-after-free condition in the affected component.
Mitigation Recommendations
Mozilla has released an official fix 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. Since the vulnerability is fixed, no additional mitigation steps are required beyond applying the update.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mozilla
- Date Reserved
- 2026-09-15T12:34:06.876Z
- 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: 6aa93e6555bf5e2cf5d31003
Added to database: 09/15/2026, 12:47:33 UTC
Last enriched: 09/15/2026, 13:17:11 UTC
Last updated: 09/16/2026, 04:01:24 UTC
Views: 8
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