CVE-2022-26486VulnerabilityPublished 03/07/2022Updated 10/24/2026

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

Affects Mozilla FirefoxSource CISA KEV

Severity

High

No CVSS score published yet

Exploitation: Actively exploited – in CISA KEV since 03/07/2022
KEV deadline: 03/21/2022
EPSS: 2.4% chance of exploitation in 30 days – higher than 83% of CVEs

What to do

CISA required action

Apply updates per vendor instructions.

nvd.nist.gov/vuln/detail/CVE-2022-26486 (opens in a new tab)

Description

Mozilla Firefox has a use-after-free vulnerability in its WebGPU IPC Framework that can be exploited to achieve arbitrary code execution. This vulnerability is known to have been exploited in the wild. No specific affected versions or patch information is provided in the available data.

Summary

CVE-2022-26486 is a use-after-free vulnerability in the WebGPU IPC Framework component of Mozilla Firefox. This flaw allows attackers to exploit memory management errors to execute arbitrary code within the context of the browser. The vulnerability has been observed in active exploitation campaigns, indicating a real-world threat. However, no detailed version information or patch status is provided in the input data.

Impact

Successful exploitation of this vulnerability can lead to arbitrary code execution, potentially allowing attackers to run malicious code on the affected system with the privileges of the Firefox process. This poses a significant security risk to users of the affected software.

Mitigation

Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Users and administrators should monitor Mozilla's official security advisories for updates and apply any available patches promptly once released.

Weaknesses

CWE-416Use After Free (opens in a new tab)

What to do

Description

AnalysisAI-generated, updated 10/24/2026, 10:42:09 UTC

Weaknesses

References

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