BaseFortify

Publication date: 2025-10-14

Last updated on: 2025-10-15

Assigner: MediaTek, Inc.

Description

In wlan AP driver, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: WCNCR00419946; Issue ID: MSV-3582.

CVSS Scores

EPSS Scores

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Meta Information

Published

2025-10-14

Last Modified

2025-10-15

Generated

2026-07-06

AI Q&A

2025-10-14

EPSS Evaluated

2026-07-05

NVD

CVE-2025-20717

Affected Vendors & Products

Vendor	Product	Version / Range
mediatek	software_development_kit	to 7.6.7.2 (inc)
mediatek	mt6890	*
mediatek	mt7615	*
mediatek	mt7622	*
mediatek	mt7663	*
mediatek	mt7915	*
mediatek	mt7916	*
mediatek	mt7981	*
mediatek	mt7986	*
openwrt	openwrt	19.07.0
openwrt	openwrt	21.02.0
mediatek	mt6890	*

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-121	A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
CWE-787	The product writes data past the end, or before the beginning, of the intended buffer.

Attack-Flow Graph

Executive Summary

This vulnerability is an out of bounds write in the wlan AP driver caused by an incorrect bounds check. It means that the software writes data outside the intended memory area, which can lead to unexpected behavior or security issues.

Impact Analysis

The vulnerability could lead to local escalation of privilege if a malicious actor already has System privilege. This means an attacker with high-level access could exploit this flaw to gain even greater control over the system. No user interaction is needed for exploitation.

Mitigation Strategies

Apply the patch identified as WCNCR00419946 provided by the vendor to fix the out of bounds write issue in the wlan AP driver. Since exploitation requires local access with System privilege, ensure that only trusted users have such privileges and monitor for any unusual local activity until the patch is applied.

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