VULNERABILITY INTELLIGENCE

CVE-2022-26486

CVSS score9.6 CRITICAL

EPSS probability2.36%

CISA KEVKnown exploited vulnerability

Published2022-12-22

Last modified2026-08-19

CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

Known Exploited Vulnerability

Mozilla Firefox Use-After-Free Vulnerability

Vendor / product: Mozilla / Firefox

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.

Weakness classification

nvd@nist.gov: CWE-416
134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-416

Primary references

security@mozilla.org — Exploit, Issue Tracking, Vendor Advisory
security@mozilla.org — Exploit, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Exploit, Issue Tracking, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Exploit, Vendor Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0 — US Government Resource