CVE-2026-100805

Race condition, use-after-free in the Audio/Video component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*

History

19 Oct 2026, 17:38

Type Values Removed Values Added
References () https://bugzilla.mozilla.org/show_bug.cgi?id=2058785 - () https://bugzilla.mozilla.org/show_bug.cgi?id=2058785 - Permissions Required
References () https://www.mozilla.org/security/advisories/mfsa2026-101/ - () https://www.mozilla.org/security/advisories/mfsa2026-101/ - Vendor Advisory
References () https://www.mozilla.org/security/advisories/mfsa2026-97/ - () https://www.mozilla.org/security/advisories/mfsa2026-97/ - Vendor Advisory
CPE cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:*:*:*:*
First Time Mozilla thunderbird
Mozilla
Mozilla firefox

30 Sep 2026, 18:18

Type Values Removed Values Added
References
  • () https://www.mozilla.org/security/advisories/mfsa2026-101/ -
Summary (en) Race condition, use-after-free in the Audio/Video component. This vulnerability was fixed in Firefox 157. (en) Race condition, use-after-free in the Audio/Video component. This vulnerability was fixed in Thunderbird 157 and Firefox 157.

29 Sep 2026, 15:17

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 7.5
CWE CWE-416
CWE-362

29 Sep 2026, 13:17

Type Values Removed Values Added
New CVE

Information

Published : 2026-09-29 13:17

Updated : 2026-10-19 17:38


NVD link : CVE-2026-100805

Mitre link : CVE-2026-100805

CVE.ORG link : CVE-2026-100805


JSON object : View

Products Affected

mozilla

  • firefox
  • thunderbird
CWE
CWE-362

Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CWE-416

Use After Free