PT-2021-16679 · Samsung · Samsung Mobile Devices

Published 2021-10-06 · Updated 2025-10-30 · CVE-2021-25489

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions: Samsung Mobile Devices versions prior to SMR Oct-2021 Release 1

Description: The issue is related to improper input validation in the modem interface driver. Assuming radio permission is gained, missing input validation results in a format string bug, which can lead to a kernel panic.

Recommendations: For Samsung Mobile Devices versions prior to SMR Oct-2021 Release 1, update to SMR Oct-2021 Release 1 or later to resolve the issue. As a temporary workaround, consider restricting access to the modem interface driver to minimize the risk of exploitation.

Fix

Use of Externally-Controlled Format String

RCE

Weakness Enumeration

CWE-134

CWE-20

Related Identifiers

CVE-2021-25489

Affected Products

Samsung Mobile Devices

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2021-25489 · Security Note
• https://osv.dev/vulnerability/CVE-2021-25489 · Vendor Advisory
• https://t.me/cveNotify/140980 · Telegram Post
• https://t.me/cvenotify/111437 · Telegram Post
• https://cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-25489 · Note
• https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=10 · Security Note, Vendor Advisory