CVE-2022-26486
CRITICAL9.6⚠ KEVEPSS 2.5%Mozilla Firefox Use-After-Free Vulnerability
Published: 12/22/2022Modified: 4/28/2026Added to CISA KEV: 3/7/2022
Description
An unexpected message in the WebGPU IPC framework could lead to a use-after-free and exploitable sandbox escape. We have had reports of attacks in the wild abusing this flaw. This vulnerability affects Firefox < 97.0.2, Firefox ESR < 91.6.1, Firefox for Android < 97.3.0, Thunderbird < 91.6.2, and Focus < 97.3.0.
Affected packages (2)
- Debian/firefox-esrfrom 0, < 91.6.1esr-1~deb11u1
- Debian/thunderbirdfrom 0, < 1:91.6.2-1~deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.6 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H |