CVE-2026-2447

Heap buffer overflow in libvpx. This vulnerability affects Firefox < 147.0.4, Firefox ESR < 140.7.1, Firefox ESR < 115.32.1, Thunderbird < 140.7.2, and Thunderbird < 147.0.2.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://bugzilla.mozilla.org/show_bug.cgi?id=2014390	Issue Tracking Permissions Required
https://www.mozilla.org/security/advisories/mfsa2026-10/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2026-11/	Vendor Advisory
https://lists.debian.org/debian-lts-announce/2026/02/msg00028.html

Configurations

Configuration 1 (hide)

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

History

No history.

Information

Published : 2026-02-16 15:18

Updated : 2026-02-22 21:16

NVD link : CVE-2026-2447

Mitre link : CVE-2026-2447

CVE.ORG link : CVE-2026-2447

JSON object : View

Products Affected

mozilla

firefox
thunderbird

CWE

CWE-122

Heap-based Buffer Overflow

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