Samsung Mobile Devices Unspecified Vulnerability (CVE-2021-25371)

Samsung mobile devices contain an unspecified vulnerability within DSP driver that allows attackers to load ELF libraries inside DSP.

Published Mar 26, 2021 · Updated May 17, 2026

Why patchRisk explained in plain English

Worst-case scenarioIf unpatched

An attacker, with administrative privileges, can achieve full data confidentiality loss, arbitrary modification of data, complete denial of service or system unavailability. Federal agencies are required to remediate by 2023-07-20 under CISA BOD 22-01.

How the attack worksNo clicks needed

This is a Software Vulnerability (CWE-912) (CWE-912) vulnerability in Samsung Mobile Devices. A vulnerability in DSP driver prior to SMR Mar-2021 Release 1 allows attackers load arbitrary ELF libraries inside DSP. Exploitation requires physical access, higher attack complexity, an administrative account, and no user interaction required.

Am I affected?Quick check

Probably yes if any of these apply:

●IT Security

●Running android: 10.0, 11.0

Real-world incidentsWhat we've seen

CISA added this CVE to the Known Exploited Vulnerabilities catalog on 2023-06-29 based on evidence of active exploitation in the wild. Federal agencies required to remediate by 2023-07-20.

How to patch

Manual remediation steps

Identify affected hosts: query inventory for general installs in scope.

Apply the vendor security update referenced in CVE-2021-25371's advisory. No specific KB/version is encoded yet — consult the linked MSRC/vendor URL.

Verify the fix per the vendor's published verification steps.

Document the remediation in your change ticket and re-scan with your vulnerability scanner to confirm closure.

PowerShell automationComing soon

No tested PowerShell script for this entry yet. We’re prioritising automation based on user demand.

References

↗ CVE-2021-25371 ↗ MSRC Advisory ↗ NVD ↗ Vendor Advisory