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CVE-2022-26486: Mozilla Firefox Use-After-Free Vulnerability

criticalknown exploitedCVE-2022-26486
Actively exploited. At least one CVE in this advisory is listed in the CISA Known Exploited Vulnerabilities catalog — exploitation has been observed in the wild. Treat remediation as urgent.
Mozilla Firefox contains a use-after-free vulnerability in WebGPU IPC Framework which can be exploited to perform arbitrary code execution.

CSIRTS triage

vendor: Mozillaproduct: FirefoxRemote code execution
What
A use-after-free vulnerability can be exploited to perform arbitrary code execution.
Who is affected
Users of Mozilla Firefox are affected.
Urgency
Immediate remediation is necessary as the vulnerability is actively exploited and rated critical.
Action
Update to the latest version of Firefox to address the vulnerability.

AI-assisted analysis generated from the source advisory — verify against the original.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2022-03-07
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2022-26486

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2022-26486coverage & exploitation statusNVD · CVE.org

Recent advisories for Mozilla Firefox Use-After-Free

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

More from CISA Known Exploited Vulnerabilities