CVE-2021-25487highunder attackCWE-125

CVE-2021-25487: high-severity vulnerability in Samsung Mobile Devices

Published · Updated

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51Vexday Risk Score

Prioritize patching. It under exploitation confirmed by CISA.

ssvc Actcvss 7.3epss 0.6%
from disclosure to weapon
Published on NVDOct 6
CISA KEV+631d
Action required by CISAfederal deadline: 2023-07-20

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

In short

A modem driver fails to check buffer boundaries, allowing someone to read memory beyond intended limits and potentially execute malicious code by manipulating function pointers.

Technical detail

CWE-125 out-of-bounds read in set_skb_priv() function lacks input validation on buffer operations, enabling information disclosure and arbitrary code execution through invalid function pointer dereference. Exploitation requires interaction with the modem interface driver prior to SMR Oct-2021 Release 1 patches.

Summary generated and translated by AI from the official description.

The full analysis of this CVE is available in Portuguese →

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.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N