Samsung Mobile Devices Improper Access Control Vulnerability

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

How to fix CVE-2021-25337

• Recommended remediation

  Apply updates per vendor instructions. CISA due date Nov 29, 2022.

• Official advisories

  • CISA KEV · cisa.gov
  • CVE.org · cve.org
  • FIRST EPSS · first.org
  • NIST NVD · nvd.nist.gov
  • VulnCheck KEV · vulncheck.com

What to do

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

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. Mar 4, 2021 · Catalog

   Detected

   Samsung mobile devices contain an improper access control vulnerability in clipboard service which allows untrusted applications to read or write arbitrary files. This vulnerability was chained with CVE-2021-25369 and CVE-2021-25370.

2. Nov 8, 2022 · CISA KEV

   Known exploited

   Apply updates per vendor instructions.

3. Nov 29, 2022 · CISA KEV

   Remediation due

   Apply updates per vendor instructions.

4. Jun 16, 2026 · Catalog

   Updated

   Samsung mobile devices contain an improper access control vulnerability in clipboard service which allows untrusted applications to read or write arbitrary files. This vulnerability was chained with CVE-2021-25369 and CVE-2021-25370.

Sources

• CISA KEVConfirmed exploitationCVE-2021-25337

  Samsung mobile devices contain an improper access control vulnerability in clipboard service which allows untrusted applications to read or write arbitrary files. This vulnerability was chained with CVE-2021-25369 and CVE-2021-25370.

  cisa.gov
• CVE.orgVulnerability recordCVE-2021-25337

  Official CVE identifier

  cve.org
• FIRST EPSSExploitation probabilityCVE-2021-25337

  30-day exploitation probability 2.8%

  first.org
• NIST NVDVulnerability recordCVE-2021-25337

  Improper access control in clipboard service in Samsung mobile devices prior to SMR Mar-2021 Release 1 allows untrusted applications to read or write certain local files.

  nvd.nist.gov
• VulnCheck KEVConfirmed exploitationCVE-2021-25337

  Samsung mobile devices contain an improper access control vulnerability in clipboard service which allows untrusted applications to read or write arbitrary files. This vulnerability was chained with CVE-2021-25369 and CVE-2021-25370.

  vulncheck.com

References

• VulnCheck exploitation evidence · docs.google.com
• CISA note · nvd.nist.gov
• Vendor Advisory · security.samsungmobile.com
• CISA note · security.samsungmobile.com
• US Government Resource · cisa.gov
• VulnCheck exploitation evidence · cisa.gov

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.