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CVE-2021-25370: Samsung Mobile Devices Memory Corruption Vulnerability

• Severity: medium (CVSS 4.4 v3.1)
• Exploited in the wild: yes — in CISA KEV since 2022-11-08
• EPSS: 0.9% 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-416

Description

An incorrect implementation handling file descriptor in dpu driver prior to SMR Mar-2021 Release 1 results in memory corruption leading to kernel panic.

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 (+44)

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-2021-25370

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