CVE-2026-16359: Vulnerability in Mozilla Firefox
Incorrect boundary conditions in the Audio/Video: GMP component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, and Firefox ESR 140.13.
AI Analysis
Technical Summary
The vulnerability CVE-2026-16359 affects the Audio/Video GMP component of Mozilla Firefox due to incorrect boundary conditions. This could potentially lead to memory safety issues or other unintended behavior within the component. Mozilla addressed this vulnerability by releasing fixes in Firefox 153, Firefox ESR 115.38, and Firefox ESR 140.13. The vendor advisory classifies the impact as moderate and does not report active exploitation in the wild.
Potential Impact
The vulnerability may cause memory safety issues or other unintended effects in the Audio/Video GMP component, which could potentially be leveraged for attacks. However, no known exploits in the wild have been reported. The impact is assessed as moderate by Mozilla.
Mitigation Recommendations
A fix for this vulnerability is available and included in Firefox 153, Firefox ESR 115.38, and Firefox ESR 140.13. Users and administrators should update to these versions or later to remediate this issue. No additional mitigation actions are required beyond applying the official update.
CVE-2026-16359: Vulnerability in Mozilla Firefox
Description
Incorrect boundary conditions in the Audio/Video: GMP component. This vulnerability was fixed in Firefox 153, Firefox ESR 115.38, and Firefox ESR 140.13.
CVSS v3.1
Score 9.1critical
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.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability CVE-2026-16359 affects the Audio/Video GMP component of Mozilla Firefox due to incorrect boundary conditions. This could potentially lead to memory safety issues or other unintended behavior within the component. Mozilla addressed this vulnerability by releasing fixes in Firefox 153, Firefox ESR 115.38, and Firefox ESR 140.13. The vendor advisory classifies the impact as moderate and does not report active exploitation in the wild.
Potential Impact
The vulnerability may cause memory safety issues or other unintended effects in the Audio/Video GMP component, which could potentially be leveraged for attacks. However, no known exploits in the wild have been reported. The impact is assessed as moderate by Mozilla.
Mitigation Recommendations
A fix for this vulnerability is available and included in Firefox 153, Firefox ESR 115.38, and Firefox ESR 140.13. Users and administrators should update to these versions or later to remediate this issue. No additional mitigation actions are required beyond applying the official update.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mozilla
- Date Reserved
- 2026-07-20T21:56:07.912Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://www.mozilla.org/security/advisories/mfsa2026-68/","vendor":"Mozilla"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-69/","vendor":"Mozilla"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-70/","vendor":"Mozilla"}]
Threat ID: 6a5f6cbb2a4a8d59892624f6
Added to database: 07/21/2026, 12:57:31 UTC
Last enriched: 07/21/2026, 13:43:00 UTC
Last updated: 07/21/2026, 21:08:59 UTC
Views: 4
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