CVE-2026-8968: Vulnerability in Mozilla Firefox
Denial-of-service due to invalid pointer in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
AI Analysis
Technical Summary
CVE-2026-8968 is a vulnerability in the Audio/Video: Web Codecs component of Mozilla Firefox that can cause a denial-of-service condition due to an invalid pointer. The flaw was resolved in Firefox 151 and Firefox ESR 140.11. The Mozilla advisories confirm the fix and classify the impact as low. No active exploitation has been reported.
Potential Impact
The vulnerability allows an attacker to cause a denial-of-service by triggering an invalid pointer dereference in the Web Codecs component. According to Mozilla, the impact is low, indicating limited risk beyond service disruption. There are no reports of exploitation in the wild.
Mitigation Recommendations
Mozilla has released official fixes for this vulnerability in Firefox 151 and Firefox ESR 140.11. Users and administrators should update to these versions or later to remediate the issue. No additional mitigation actions are required as the vulnerability is fixed in these releases.
CVE-2026-8968: Vulnerability in Mozilla Firefox
Description
Denial-of-service due to invalid pointer in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-8968 is a vulnerability in the Audio/Video: Web Codecs component of Mozilla Firefox that can cause a denial-of-service condition due to an invalid pointer. The flaw was resolved in Firefox 151 and Firefox ESR 140.11. The Mozilla advisories confirm the fix and classify the impact as low. No active exploitation has been reported.
Potential Impact
The vulnerability allows an attacker to cause a denial-of-service by triggering an invalid pointer dereference in the Web Codecs component. According to Mozilla, the impact is low, indicating limited risk beyond service disruption. There are no reports of exploitation in the wild.
Mitigation Recommendations
Mozilla has released official fixes for this vulnerability in Firefox 151 and Firefox ESR 140.11. Users and administrators should update to these versions or later to remediate the issue. No additional mitigation actions are required as the vulnerability is fixed in these releases.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mozilla
- Date Reserved
- 2026-05-19T12:30:13.364Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://www.mozilla.org/security/advisories/mfsa2026-46/","vendor":"Mozilla"},{"url":"https://www.mozilla.org/security/advisories/mfsa2026-48/","vendor":"Mozilla"}]
Threat ID: 6a0c677fec166c07b0a99810
Added to database: 5/19/2026, 1:37:03 PM
Last enriched: 5/19/2026, 1:53:34 PM
Last updated: 5/20/2026, 6:15:46 PM
Views: 9
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