CVE-2026-20423

HIGH

wlan STA driver - Privilege Escalation

Title source: llm
STIX 2.1

Description

In wlan STA driver, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00465314; Issue ID: MSV-4956.

Scores

CVSS v3 7.8
EPSS 0.0001
EPSS Percentile 2.5%
Attack Vector LOCAL
CVSS:3.1/AV:L/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-749 CWE-787
Status published
Products (13)
mediatek/nbiot_sdk < 3.8
MediaTek, Inc./MediaTek chipset MT7902
MediaTek, Inc./MediaTek chipset MT7920
MediaTek, Inc./MediaTek chipset MT7921
MediaTek, Inc./MediaTek chipset MT7922
MediaTek, Inc./MediaTek chipset MT7925
MediaTek, Inc./MediaTek chipset MT7927
MediaTek, Inc./MT7902 WCNCR00465314
MediaTek, Inc./MT7920 WCNCR00465314
MediaTek, Inc./MT7921 WCNCR00465314
... and 3 more
Published Mar 02, 2026
Tracked Since Mar 02, 2026