# CVE-2021-25337: Samsung Mobile Devices Improper Access Control Vulnerability

Source: https://junglewise.ai/threats/cve-2021-25337-samsung-mobile-devices-improper-access-control-vulnerability  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2022-11-08. Updated: 2026-05-10  
License: CC BY 4.0 with a link back

CVE-2021-25337 · Severity: critical · CVSS 7.1 · Exploited in the wild · Published 2022-11-08

Samsung mobile devices contain an improper access control vulnerability in the clipboard service. This flaw allows untrusted applications to read or write arbitrary local files, and has been observed being chained with other vulnerabilities in the wild.

Technologies: [Samsung Mobile Devices](https://junglewise.ai/threats/technologies/mobile-devices). Vendors: [Samsung](https://junglewise.ai/threats/vendors/samsung).

## Quick answers

**Is CVE-2021-25337 exploited in the wild?** Yes. CVE-2021-25337 is known to be exploited in the wild, first recorded on 8 November 2022. Treat it as urgent.

**How severe is CVE-2021-25337?** Critical severity, with a CVSS score of 7.1, published 8 November 2022.

**Which products and versions are affected?** Samsung Android Prior to SMR Mar-2021 Release 1.

**Is there a fix for CVE-2021-25337?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2021-25337 attacked?** It is attacked with local access, in an operating system.

**Am I affected by CVE-2021-25337?** Check whether you run Samsung Mobile Devices. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- Samsung Android Prior to SMR Mar-2021 Release 1

## Timeline

- 2021-03-04: disclosed: NVD Published Date
- 2022-11-08: kev added: Date added to CISA Known Exploited Vulnerabilities Catalog

## Related threats

- [Samsung Mobile Devices out-of-bounds write in libimagecodec.quram.so](https://junglewise.ai/threats/cve-2025-21042-samsung-mobile-devices-out-of-bounds-write-in-libimagecodec-quram)
- [Samsung Mobile Devices out-of-bounds write in libimagecodec.quram.so](https://junglewise.ai/threats/cve-2025-21043-samsung-mobile-devices-out-of-bounds-write-in-libimagecodec-quram)
- [Samsung Mobile Devices Use-After-Free Vulnerability](https://junglewise.ai/threats/cve-2022-22265-samsung-mobile-devices-use-after-free-vulnerability)
- [Samsung Mobile Devices Unspecified Vulnerability](https://junglewise.ai/threats/cve-2021-25371-samsung-mobile-devices-unspecified-vulnerability)
- [Samsung Mobile Devices Improper Boundary Check Vulnerability](https://junglewise.ai/threats/cve-2021-25372-samsung-mobile-devices-improper-boundary-check-vulnerability)