CISA KEV · Known exploitedMedium

CVE-2021-25394

Samsung Mobile Devices

A use after free vulnerability via race condition in MFC charger driver prior to SMR MAY-2021 Release 1 allows arbitrary write given a radio privilege is compromised.

CVSS
6.4
EPSS
0.40%
32.9% percentile
CISA KEV
Listed
Published
2021.06.12
PRIORITY ASSESSMENT

Immediate review

CISA has listed this vulnerability in the Known Exploited Vulnerabilities catalog.

Known exploitationConfirmed by CISA KEV
Exploit probability0.40%
Technical severityCVSS 6.4

Vulnerability overview

A use after free vulnerability via race condition in MFC charger driver prior to SMR MAY-2021 Release 1 allows arbitrary write given a radio privilege is compromised.

Affected product and versions

Product
Samsung Mobile Devices
Affected versions
O(8.x), P(9.0), Q(10.0), R(11.0), 8.1, 9.0, 10.0, 11.0
Fixed versions
No verified fixed-version field is available yet

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
CISA required action

Apply updates per vendor instructions or discontinue use of the product if updates are unavailable

Due date: 2023.07.20
  1. 1
    Identify

    Confirm that Samsung Mobile Devices and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
CWE
CWE-362, CWE-416
KEV added
2023.06.29
Ransomware use
미확인