CVE-2026-2447
HIGH8.8EPSS 0.02%libvpx - security update
Published: 2/16/2026Modified: 4/28/2026
Description
Heap buffer overflow in libvpx. This vulnerability was fixed in Firefox 147.0.4, Firefox ESR 140.7.1, Firefox ESR 115.32.1, Thunderbird 140.7.2, and Thunderbird 147.0.2.
Affected packages (5)
- Debian/firefox-esrfrom 0, < 140.8.0esr-1
- Debian/libvpxfrom 0, < 1.9.0-1+deb11u5
- Debian/libvpxfrom 0, < 1.9.0-1+deb11u5
- Debian/libvpxfrom 0, < 1.12.0-1+deb12u5
- Debian/thunderbirdfrom 0, < 1:140.8.0esr-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |