CVE-2021-25487: Samsung Mobile Devices Out-of-Bounds Read Vulnerability

High severity, CVSS 7.8. Actively exploited: in CISA KEV since 2023-06-29. EPSS: 0.6% chance of exploitation in the next 30 days.

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.

Affected products

• Samsung Android: version 8.1 only; version 9.0 only; version 10.0 only; version 11.0 only

Published 2021-10-06. Last modified 2026-06-17.