CVE-2025-20742

HIGH

MediaTek Software Development Kit < 7.6.7.2 - Heap-based Buffer Overflow in WLAN AP Driver

Title source: llm

Description

In wlan AP driver, there is a possible out of bounds write due to an incorrect bounds check. This could lead to remote (proximal/adjacent) escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00432680; Issue ID: MSV-3949.

References (1)

Core 1

Core References

Vendor Advisory

https://corp.mediatek.com/product-security-bulletin/November-2025

Scores

CVSS v3 8.0

EPSS 0.0025

EPSS Percentile 16.5%

Attack Vector ADJACENT_NETWORK

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

CWE

CWE-122 CWE-787

Status published

Products (3)

mediatek/software_development_kit < 7.6.7.2

openwrt/openwrt 19.07.0

openwrt/openwrt 21.02.0

Published Nov 04, 2025

Tracked Since Feb 18, 2026