Use-after-free in the SVG component. (CVE-2026-92029)
CVE-2026-92029 is a use-after-free vulnerability in the SVG component of Firefox. This security flaw was addressed and fixed in Firefox 156 and Firefox ESR versions 115.41, 140.16, and 153.3. The vulnerability is classified with high impact due to the potential risks associated with use-after-free bugs. No active exploits in the wild have been reported. Users are advised to update to the fixed versions to mitigate the risk.
AI Analysis
Technical Summary
This vulnerability involves a use-after-free condition in the SVG component of Firefox browsers. Use-after-free vulnerabilities occur when a program continues to use memory after it has been freed, potentially leading to memory corruption and security issues. Mozilla fixed this issue in Firefox 156 and ESR versions 115.41, 140.16, and 153.3. The Mozilla advisory categorizes the impact as high and includes this fix as part of a broader security update addressing multiple memory safety vulnerabilities.
Potential Impact
The vulnerability can lead to memory corruption due to use-after-free in the SVG component, which may be exploited to cause a crash or potentially execute arbitrary code. The advisory rates the impact as high, indicating significant security risk if unpatched. No known exploits in the wild have been reported at this time.
Mitigation Recommendations
A fix is available and has been officially released by Mozilla. Users and administrators should update Firefox to version 156 or later, or to Firefox ESR versions 115.41, 140.16, or 153.3 to remediate this vulnerability. No additional mitigation steps are required beyond applying these updates.
Use-after-free in the SVG component. (CVE-2026-92029)
Description
CVE-2026-92029 is a use-after-free vulnerability in the SVG component of Firefox. This security flaw was addressed and fixed in Firefox 156 and Firefox ESR versions 115.41, 140.16, and 153.3. The vulnerability is classified with high impact due to the potential risks associated with use-after-free bugs. No active exploits in the wild have been reported. Users are advised to update to the fixed versions to mitigate the risk.
Affected software
pkg:github/mozilla/firefox-esrRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a use-after-free condition in the SVG component of Firefox browsers. Use-after-free vulnerabilities occur when a program continues to use memory after it has been freed, potentially leading to memory corruption and security issues. Mozilla fixed this issue in Firefox 156 and ESR versions 115.41, 140.16, and 153.3. The Mozilla advisory categorizes the impact as high and includes this fix as part of a broader security update addressing multiple memory safety vulnerabilities.
Potential Impact
The vulnerability can lead to memory corruption due to use-after-free in the SVG component, which may be exploited to cause a crash or potentially execute arbitrary code. The advisory rates the impact as high, indicating significant security risk if unpatched. No known exploits in the wild have been reported at this time.
Mitigation Recommendations
A fix is available and has been officially released by Mozilla. Users and administrators should update Firefox to version 156 or later, or to Firefox ESR versions 115.41, 140.16, or 153.3 to remediate this vulnerability. No additional mitigation steps are required beyond applying these updates.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-fcjq-ffhg-m7hf
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-92029"]
- State
- PUBLISHED
Threat ID: 6aaa081155bf5e2cf5ea483e
Added to database: 09/16/2026, 03:08:01 UTC
Last enriched: 09/16/2026, 05:07:06 UTC
Last updated: 09/16/2026, 06:01:24 UTC
Views: 5
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