CVE-2026-92063

Denial-of-service in the Audio/Video component. This vulnerability was fixed in Firefox 156 and Thunderbird 156.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=2055737	Permissions Required
https://www.mozilla.org/security/advisories/mfsa2026-90/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2026-94/	Vendor Advisory

Configurations

Configuration 1 (hide)

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

History

05 Oct 2026, 18:57

Type	Values Removed	Values Added
First Time		Mozilla thunderbird Mozilla Mozilla firefox
CPE		cpe:2.3:a:mozilla:firefox:::::::: cpe:2.3:a:mozilla:thunderbird::::::::
References	~~() https://bugzilla.mozilla.org/show_bug.cgi?id=2055737 -~~	() https://bugzilla.mozilla.org/show_bug.cgi?id=2055737 - Permissions Required
References	~~() https://www.mozilla.org/security/advisories/mfsa2026-90/ -~~	() https://www.mozilla.org/security/advisories/mfsa2026-90/ - Vendor Advisory
References	~~() https://www.mozilla.org/security/advisories/mfsa2026-94/ -~~	() https://www.mozilla.org/security/advisories/mfsa2026-94/ - Vendor Advisory

20 Sep 2026, 01:16

Type	Values Removed	Values Added
CWE		CWE-770
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : unknown v3 : 6.5

Information

Published : 2026-09-15 13:17

Updated : 2026-10-05 18:57

NVD link : CVE-2026-92063

Mitre link : CVE-2026-92063

CVE.ORG link : CVE-2026-92063

JSON object : View

Products Affected

mozilla

firefox
thunderbird

CWE

CWE-770

Allocation of Resources Without Limits or Throttling

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