PT-2021-16677 · Samsung · Samsung Mobile Devices

Published 2021-10-06 · Updated 2025-10-30 · CVE-2021-25487

Positive Technologies (AI Summary)

CVSS v3.1

7.8

High

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/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 a lack of boundary checking of a buffer in the set skb priv() function of the modem interface driver. This allows an out-of-bounds read, which can result in arbitrary code execution by dereferencing an invalid function pointer.

Recommendations: For 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

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

CVE-2021-25487

Affected Products

Samsung Mobile Devices

References · 6

• https://osv.dev/vulnerability/CVE-2021-25487 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-25487 · Security Note
• https://t.me/cveNotify/140979 · Telegram Post
• https://cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-25487 · Note
• https://t.me/cvenotify/111436 · Telegram Post
• https://security.samsungmobile.com/securityUpdate.smsb?year=2021&month=10 · Security Note, Vendor Advisory