Firefox <97.0.2: WebGPU IPC UAF Sandbox Escape
CVE-2022-26486 Published on December 22, 2022
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.
Known Exploited Vulnerability
This Mozilla Firefox Use-After-Free Vulnerability is part of CISA's list of Known Exploited Vulnerabilities. Mozilla Firefox contains a use-after-free vulnerability in WebGPU IPC Framework which can be exploited to perform arbitrary code execution.
The following remediation steps are recommended / required by March 21, 2022: Apply updates per vendor instructions.
Vulnerability Analysis
CVE-2022-26486 is exploitable with network access, requires user interaction. This vulnerability is considered to have a low attack complexity. This vulnerability is known to be actively exploited by threat actors. The potential impact of an exploit of this vulnerability is considered to be critical as this vulnerability has a high impact to the confidentiality, integrity and availability of this component.
Weakness Type
What is a Dangling pointer Vulnerability?
Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code.
CVE-2022-26486 has been classified to as a Dangling pointer vulnerability or weakness.
Products Associated with CVE-2022-26486
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Affected Versions
Mozilla Firefox:- Version unspecified and below 97.0.2 is affected.
- Version unspecified and below 91.6.1 is affected.
- Version unspecified and below 97.3.0 is affected.
- Version unspecified and below 91.6.2 is affected.
- Version unspecified and below 97.3.0 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.