CVE-2022-26486Actively exploitedAdded to KEV 2022-03-07

Mozilla Firefox Use-After-Free Vulnerability

Mozilla, Firefox

Description

Mozilla Firefox contains a use-after-free vulnerability in WebGPU IPC Framework which can be exploited to perform arbitrary code execution.

CVSS severity for this advisory hasn't been enriched from NVD yet, check back shortly.

EPSS, exploit probability

Medium

2.4%

estimated chance of real-world exploitation in the next 30 days, higher than 83.7% of every CVE FIRST.org scores

Refreshed 10/28/2026, via FIRST.org's EPSS model, not CVSS, this measures likelihood of exploitation, not how severe it would be.

Required action

Apply updates per vendor instructions.

CISA-recommended due date: 2022-03-21

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