CVE-2026-2447

🔴 HIGH

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.

Published
Feb 16, 2026
Last Modified
Feb 22, 2026
Views
1
Bookmarks
0

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.

Affected Products (3)

mozilla - firefox

Version: *

mozilla - firefox

Version: *

mozilla - thunderbird

Version: *

CVSS Scores

CVSS 3.1 8.8
8.8
HIGH
CVSS 2.0 8.8

Additional Information

Source
security@mozilla.org
State
Modified

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