CVE intelligence and bounded remediation

CVE-2021-25489 — Samsung Mobile Devices Improper Input Validation Vulnerability

Medium CVSS 5.5 CISA KEV

Assuming radio permission is gained, missing input validation in modem interface driver prior to SMR Oct-2021 Release 1 results in format string bug leading to kernel panic.

Severity
Medium
CVSS
5.5 (3.1)
Published
2021-10-06
CISA KEV
Known exploited
Ecosystem
operating-system
Weaknesses
CWE-20, CWE-134

Affected products

  • samsung / android / 8.1
  • samsung / android / 9.0
  • samsung / android / 10.0

Showing 3 representative product identities from 28 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

General vulnerability remediation

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Check exposure

  • Confirm the affected component, deployment paths, reachable interfaces, and enabled features from inventories and configuration, without probing production destructively.
  • Compare the advisory's affected conditions with the repository lockfiles, build manifests, artifacts, and runtime inventory.
  • Identify data sensitivity, trust boundaries, and privilege level for every confirmed affected deployment.

Remediate safely

  • Apply a vendor-supported fix or remove the affected component or feature; record the selected change and its source in the repository.
  • Update direct and transitive dependency locks, generated artifacts, deployment manifests, and asset inventories together.
  • Add a regression test for the documented unsafe condition using inert inputs and preserve rollback instructions.

Authoritative sources

Complete CVE record and remediation plan

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