CVE-2026-109730: Vulnerability in Mozilla Firefox
Description
Integer overflow in the Graphics component. This vulnerability was fixed in Firefox 158, Firefox ESR 115.43, Firefox ESR 153.5, Thunderbird 158, and Thunderbird 153.5.
Affected software
Mozilla
Firefox
Mozilla
Thunderbird
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
CVE-2026-109730 describes an integer overflow vulnerability in the Graphics component of Mozilla Firefox. The flaw could potentially lead to unexpected behavior or security issues related to integer handling within the graphics subsystem. Mozilla released fixes for this vulnerability in Firefox 158, Firefox ESR 115.43, and Firefox ESR 153.5. Multiple vendor advisories provide official details and remediation guidance.
Potential Impact
The vulnerability could allow an attacker to cause unexpected behavior in the graphics processing of Firefox, which might lead to security issues such as crashes or memory corruption. However, no active exploitation has been reported. The exact impact depends on the exploitation context and is not detailed in the available data.
Mitigation Recommendations
Users and administrators should update Firefox to version 158 or later, or Firefox ESR to versions 115.43 or 153.5 or later, where the vulnerability has been fixed. Applying these official updates fully mitigates the issue.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mozilla
- Date Reserved
- 2026-10-13T00:29:36.943Z
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://www.mozilla.org/security/advisories/mfsa2026-106/","vendor":"Mozilla"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-107/","vendor":"Mozilla"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-108/","vendor":"Mozilla"}]
Threat ID: 6ace2c462cdf04f65661d526
Added to database: 10/13/2026, 13:04:06 UTC
Last enriched: 10/13/2026, 13:49:31 UTC
Last updated: 10/13/2026, 18:57:33 UTC
Views: 2
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