# CVE-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.

- Page: https://www.vulneraibility.com/cve/CVE-2021-25337
- CVSS: 4.4
- Known exploited: yes, in CISA KEV since 2022-11-08; CISA due date 2022-11-29
- EPSS: 2.81% (percentile 86.7)
- Unvetted proof-of-concept code on GitHub: 1 GitHub proof of concept (first 2026-04-17)
- CISA SSVC: exploitation active, automatable no, technical impact partial (assessed 2025-02-04)
- Weakness: CWE-269
- Published: 2021-03-04

## Affected versions

- Samsung Mobile Samsung Mobile Devices: affected >= Selected P(9.0), Q(10.0), R(11.0) and < SMR Mar-2021 Release 1

A version outside these ranges is not a statement that it is unaffected.

## References

- [other] https://security.samsungmobile.com/securityUpdate.smsb
- [other] https://security.samsungmobile.com
- [other] https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-25337

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Summary, impact and action are written by the vulneraibility.com AI analysis pipeline from the CVE record, NVD, CISA and FIRST data; verify against the references.