CVE-2021-25487

Samsung Mobile Devices

Published 6 Oct 2021 · updated 17 Jun 2026 · Analyzed

7.8 High · CVSS 3.1, NVD

Exploited in the wild

CISA added this to its Known Exploited Vulnerabilities catalog on 29 Jun 2023, with a remediation deadline of 20 Jul 2023 for US federal agencies.

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

Description

Lack of boundary checking of a buffer in set_skb_priv() of modem interface driver prior to SMR Oct-2021 Release 1 allows OOB read and it results in arbitrary code execution by dereference of invalid function pointer.

References

security.samsungmobile.com/securityUpdate.smsb?year=2021&month=10 · Vendor Advisory
www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-25487 · US Government Resource