Vulnerabilities

Vulnerability · CVE-2021-25395

Samsung Mobile Devices Race Condition Vulnerability

Published Dec 31, 2020 · catalog updated Jun 16, 2026 · Samsung Mobile Devices

Patch now

CVE-2021-25395 is in the CISA known-exploited catalog, due Jul 20, 2023. Confirm Samsung Mobile Devices against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Severity
Medium6.4
Known exploitation
CISA KEV and VulnCheck KEV
EPSS
0.37%
Remediation
Remediation guidance
Affected products
cpe samsung/android · vendor Samsung Mobile Devices

Samsung mobile devices contain a race condition vulnerability within the MFC charger driver that leads to a use-after-free allowing for a write given a radio privilege is compromised.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe samsung/android10.0
  • cpe samsung/android8.1
  • cpe samsung/android9.0
  • vendor Samsung Mobile Devicesversion unspecified

How to fix CVE-2021-25395

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

CVE-2021-25395 is in the CISA known-exploited catalog, due Jul 20, 2023. Confirm Samsung Mobile Devices against the vendor advisory and apply that fix. The CVSS score does not change the priority.

Which versions are affected?

Compare what you have installed with 10.0, 8.1, 9.0. Apply updates per vendor instructions or discontinue use of the product if updates are unavailable.

What should an analyst verify?

CWE-362: Race Condition. EPSS 0.37%. The CISA KEV listing is the exploitation evidence. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jun 11, 2021 · Catalog

    Detected

    Samsung mobile devices contain a race condition vulnerability within the MFC charger driver that leads to a use-after-free allowing for a write given a radio privilege is compromised.

  2. Jun 29, 2023 · CISA KEV

    Known exploited

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

  3. Jul 20, 2023 · CISA KEV

    Remediation due

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

  4. Jun 16, 2026 · Catalog

    Updated

    Samsung mobile devices contain a race condition vulnerability within the MFC charger driver that leads to a use-after-free allowing for a write given a radio privilege is compromised.

Sources

  • CISA KEVConfirmed exploitationCVE-2021-25395

    Samsung mobile devices contain a race condition vulnerability within the MFC charger driver that leads to a use-after-free allowing for a write given a radio privilege is compromised.

    cisa.gov
  • CVE.orgVulnerability recordCVE-2021-25395

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2021-25395

    30-day exploitation probability 0.4%

    first.org
  • NIST NVDVulnerability recordCVE-2021-25395

    A race condition in MFC charger driver prior to SMR MAY-2021 Release 1 allows local attackers to bypass signature check given a radio privilege is compromised.

    nvd.nist.gov
  • VulnCheck KEVConfirmed exploitationCVE-2021-25395

    Samsung mobile devices contain a race condition vulnerability within the MFC charger driver that leads to a use-after-free allowing for a write given a radio privilege is compromised.

    vulncheck.com

References

Freshness

Last verified in this catalog Oct 17, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.