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.
Published 2022-12-22 20:15:23
Updated 2022-12-30 20:55:00
View at NVD,   CVE.org
Vulnerability category: Memory Corruption

CVE-2022-26486 is in the CISA Known Exploited Vulnerabilities Catalog

CISA vulnerability name:
Mozilla Firefox Use-After-Free Vulnerability
CISA required action:
Apply updates per vendor instructions.
CISA description:
Mozilla Firefox contains a use-after-free vulnerability in WebGPU IPC Framework which can be exploited to perform arbitrary code execution.
Added on 2022-03-07 Action due date 2022-03-21

Exploit prediction scoring system (EPSS) score for CVE-2022-26486

0.43%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 74 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2022-26486

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
9.6
CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
2.8
6.0
NIST

CWE ids for CVE-2022-26486

  • Referencing memory after it has been freed can cause a program to crash, use unexpected values, or execute code.
    Assigned by: nvd@nist.gov (Primary)

References for CVE-2022-26486

Products affected by CVE-2022-26486

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