VULNERABILITY INTELLIGENCE

CVE-2021-0920

CVSS score6.4 MEDIUM

EPSS probability0.87%

CISA KEVKnown exploited vulnerability

Published2021-12-15

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

Known Exploited Vulnerability

Android Kernel Race Condition Vulnerability

Vendor / product: Android / Kernel

Description

In unix_scm_to_skb of af_unix.c, there is a possible use after free bug due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-196926917References: Upstream kernel

Weakness classification

nvd@nist.gov: CWE-362
134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-416

Primary references

security@android.com — Mailing List, Third Party Advisory
security@android.com — Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108 — Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Vendor Advisory
134c704f-9b21-4f2e-91b3-4a467353bcc0 — Third Party Advisory, US Government Resource