CVE-2025-20748

MEDIUM

MediaTek Software Development Kit - Out-of-bounds Write 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 local escalation of privilege if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: WCNCR00432679; Issue ID: MSV-3950.

References (1)

Core 1

Core References

Vendor Advisory

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

Scores

CVSS v3 6.7

EPSS 0.0001

EPSS Percentile 0.3%

Attack Vector LOCAL

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

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

Details

CWE

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