CVE-2026-20408

HIGH

Wlan - Buffer Overflow

Title source: llm
STIX 2.1

Description

In wlan, there is a possible out of bounds write due to a heap buffer overflow. 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: WCNCR00461651; Issue ID: MSV-4758.

Scores

CVSS v3 8.8
EPSS 0.0001
EPSS Percentile 0.5%
Attack Vector ADJACENT_NETWORK
CVSS:3.1/AV:A/AC:L/PR:N/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 (16)
mediatek/software_development_kit < 7.6.7.2
MediaTek, Inc./MediaTek chipset MT6890
MediaTek, Inc./MediaTek chipset MT7615
MediaTek, Inc./MediaTek chipset MT7915
MediaTek, Inc./MediaTek chipset MT7916
MediaTek, Inc./MediaTek chipset MT7981
MediaTek, Inc./MediaTek chipset MT7986
MediaTek, Inc./MT6890 WCNCR00461651
MediaTek, Inc./MT7615 WCNCR00461651
MediaTek, Inc./MT7915 WCNCR00461651
... and 6 more
Published Feb 02, 2026
Tracked Since Feb 18, 2026