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CVE-2021-25337: Samsung Mobile Devices Improper Access Control Vulnerability

criticalknown exploitedpublic exploitCVE-2021-25337
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.
Samsung mobile devices contain an improper access control vulnerability in clipboard service which allows untrusted applications to read or write arbitrary files. This vulnerability was chained with CVE-2021-25369 and CVE-2021-25370.

CSIRTS triage

vendor: SamsungOther
What
Samsung mobile devices contain an improper access control vulnerability in clipboard service allowing untrusted applications to access files.
Who is affected
Users of Samsung mobile devices.
Urgency
Remediation is urgent due to active exploitation and critical severity.
Action
Update to the latest firmware provided by Samsung.

AI-assisted analysis generated from the source advisory — verify against the original.

Details

Source
CISA Known Exploited Vulnerabilities (US · database · site)
Severity
critical
Published
2022-11-08
Exploitation
Observed in the wild (CISA KEV)

Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2021-25337

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-2021-25337coverage & exploitation statusNVD · CVE.org

Recent advisories for Samsung Mobile Devices

A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.

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