Use-after-free in the Graphics: Text component. (CVE-2026-92056)
CVE-2026-92056 is a use-after-free vulnerability in the Graphics: Text 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 by the vendor. No known exploits are reported in the wild at this time.
AI Analysis
Technical Summary
This vulnerability involves a use-after-free condition in the Graphics: Text component of 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 arbitrary code execution or crashes. Mozilla fixed this issue in Firefox 156 and Firefox ESR 153.3, as documented in their security advisory MFSA 2026-90.
Potential Impact
The vulnerability has a high impact rating according to the vendor advisory. Use-after-free bugs can lead to memory corruption, which attackers might exploit to execute arbitrary code or cause denial of service. However, there are no reports of active exploitation in the wild for this specific vulnerability.
Mitigation Recommendations
This vulnerability is fixed 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 actions are required beyond applying the official update.
Use-after-free in the Graphics: Text component. (CVE-2026-92056)
Description
CVE-2026-92056 is a use-after-free vulnerability in the Graphics: Text 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 by the vendor. No known exploits are reported in the wild at this time.
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a use-after-free condition in the Graphics: Text component of 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 arbitrary code execution or crashes. Mozilla fixed this issue in Firefox 156 and Firefox ESR 153.3, as documented in their security advisory MFSA 2026-90.
Potential Impact
The vulnerability has a high impact rating according to the vendor advisory. Use-after-free bugs can lead to memory corruption, which attackers might exploit to execute arbitrary code or cause denial of service. However, there are no reports of active exploitation in the wild for this specific vulnerability.
Mitigation Recommendations
This vulnerability is fixed 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 actions are required beyond applying the official update.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-33vv-pm6g-w58w
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-92056"]
- State
- PUBLISHED
Threat ID: 6aaa081055bf5e2cf5ea482b
Added to database: 09/16/2026, 03:08:00 UTC
Last enriched: 09/16/2026, 05:05:42 UTC
Last updated: 09/16/2026, 05:05:42 UTC
Views: 4
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