BaseFortify

Publication date: 2025-11-04

Last updated on: 2026-02-26

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 (when OceReducedNeighborReport is disabled). User interaction is not needed for exploitation. Patch ID: WCNCR00441511; Issue ID: MSV-4140.

CVSS Scores

EPSS Scores

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Meta Information

Published

2025-11-04

Last Modified

2026-02-26

Generated

2026-07-06

AI Q&A

2025-11-04

EPSS Evaluated

2026-07-05

NVD

CVE-2025-20731

Affected Vendors & Products

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

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-122	A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().
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 can lead to local escalation of privilege if a malicious actor already has System privilege and the OceReducedNeighborReport feature is disabled. Exploitation does not require user interaction.

Impact Analysis

The vulnerability can allow a malicious actor with existing System privilege to escalate their privileges locally, potentially gaining higher control over the affected system. This could lead to unauthorized actions or system compromise.

Mitigation Strategies

Apply the patch identified as WCNCR00441511 to the wlan AP driver to fix the out of bounds write issue. Additionally, ensure that the OceReducedNeighborReport feature is enabled to reduce the risk of exploitation.

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