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CVE-2021-0920: Android Kernel Race Condition Vulnerability

criticalknown exploitedCVE-2021-0920
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.
Android kernel contains a race condition, which allows for a use-after-free vulnerability. Exploitation can allow for privilege escalation.

CSIRTS triage

vendor: Androidproduct: KernelPrivilege escalationOther
What
Android kernel contains a race condition, which allows for a use-after-free vulnerability leading to privilege escalation.
Who is affected
Deployments of the affected Android kernel versions.
Urgency
Remediation is urgent due to active exploitation and critical severity.
Action
Apply the latest security patches for the Android kernel.

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Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2022-05-23
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2021-0920

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-2021-0920coverage & exploitation statusNVD · CVE.org

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