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CVE-2021-25369: Samsung Mobile Devices Improper Access Control Vulnerability

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: yes — in CISA KEV since 2022-11-08
• EPSS: 1.1% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-03-26 · updated 2026-06-17
• Weakness: CWE-200

Description

An improper access control vulnerability in sec_log file prior to SMR MAR-2021 Release 1 exposes sensitive kernel information to userspace.

Affected products

• Samsung Android: 8.0, 8.1, 9.0-smr-apr-2019-r1, 9.0-smr-apr-2020-r1, 9.0-smr-aug-2019-r1, 9.0-smr-aug-2020-r1 (+41)

References

• https://security.samsungmobile.com
• https://security.samsungmobile.com/securityUpdate.smsb
• https://security.samsungmobile.com
• https://security.samsungmobile.com/securityUpdate.smsb
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-25369

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