Use-after-free in the Widget: Gtk component. (CVE-2026-92067)
A use-after-free vulnerability was identified in the Widget: Gtk component of Firefox. This security flaw was addressed and fixed in Firefox version 156 and Firefox ESR 153.3. The vulnerability is rated with high impact due to the nature of use-after-free issues, which can lead to memory corruption.
AI Analysis
Technical Summary
CVE-2026-92067 is a use-after-free vulnerability affecting the Widget: Gtk component in Firefox. This type of vulnerability involves the program accessing memory after it has been freed, which can lead to crashes or potentially allow an attacker to execute arbitrary code. Mozilla fixed this vulnerability in Firefox 156 and Firefox ESR 153.3 as part of their security updates announced on September 15, 2026.
Potential Impact
The vulnerability has a high impact rating as per Mozilla's advisory. Use-after-free bugs can lead to memory corruption, crashes, or potentially arbitrary code execution, posing a significant risk to users if exploited. However, no known exploits in the wild have been reported for this specific issue.
Mitigation Recommendations
This vulnerability has been officially fixed by Mozilla in Firefox 156 and Firefox ESR 153.3. Users and administrators should update to these versions or later to mitigate the risk. No additional mitigation actions are required beyond applying the official update.
Use-after-free in the Widget: Gtk component. (CVE-2026-92067)
Description
A use-after-free vulnerability was identified in the Widget: Gtk component of Firefox. This security flaw was addressed and fixed in Firefox version 156 and Firefox ESR 153.3. The vulnerability is rated with high impact due to the nature of use-after-free issues, which can lead to memory corruption.
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-92067 is a use-after-free vulnerability affecting the Widget: Gtk component in Firefox. This type of vulnerability involves the program accessing memory after it has been freed, which can lead to crashes or potentially allow an attacker to execute arbitrary code. Mozilla fixed this vulnerability in Firefox 156 and Firefox ESR 153.3 as part of their security updates announced on September 15, 2026.
Potential Impact
The vulnerability has a high impact rating as per Mozilla's advisory. Use-after-free bugs can lead to memory corruption, crashes, or potentially arbitrary code execution, posing a significant risk to users if exploited. However, no known exploits in the wild have been reported for this specific issue.
Mitigation Recommendations
This vulnerability has been officially fixed by Mozilla in Firefox 156 and Firefox ESR 153.3. Users and administrators should update to these versions or later to mitigate the risk. No additional mitigation actions are required beyond applying the official update.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-f9vq-2g4v-759c
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-92067"]
- State
- PUBLISHED
Threat ID: 6aaa080e55bf5e2cf5ea4820
Added to database: 09/16/2026, 03:07:58 UTC
Last enriched: 09/16/2026, 05:05:05 UTC
Last updated: 09/16/2026, 05:05:05 UTC
Views: 3
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