CVE-2021-25337

Name: CVE-2021-25337
Creator: NVD / NIST
Published: 2021-03-04T21:15:13.667+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.1/10Actively ExploitedEPSS 2.83%

Last modified Jun 17, 2026

CVE-2021-25337 is a high-severity vulnerability rated 7.1/10 on the CVSS scale. 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.. CISA has confirmed active exploitation in the wild. EPSS estimates a 2.83% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

7.1/10

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

EPSS Probability

2.83%

84.8th percentile

Probability of exploitation in the next 30 days. Learn more

Exploitation Status

This vulnerability is listed in CISA’s Known Exploited Vulnerabilities catalog, confirming active exploitation in the wild. Federal agencies must remediate by Nov 29, 2022.

Weakness Enumeration

CWE-269

Affected Software

Vendor	Product	Versions	Update
Samsung	Android	9.0	Smr-Apr-2019-R1
Samsung	Android	10.0	Smr-Apr-2020-R1
Samsung	Android	11.0	Smr-Dec-2020-R1

References

https://security.samsungmobile.comVendor Advisory
https://security.samsungmobile.com/securityUpdate.smsbVendor Advisory
https://security.samsungmobile.comVendor Advisory
https://security.samsungmobile.com/securityUpdate.smsbVendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-25337US Government Resource

Timeline

Published: Mar 4, 2021
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is 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.

How severe is CVE-2021-25337?

CVE-2021-25337 has a CVSS score of 7.1/10 (HIGH severity). The EPSS model estimates a 2.83% probability of exploitation in the next 30 days. This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog.

How do I fix CVE-2021-25337?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-25337?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST