CVE-2026-20493

MEDIUM

MediaTek Chipset - Out-of-bounds Write

Title source: rule
STIX 2.1

Description

In wifi, there is a possible out of bounds write due to a missing bounds check. This could lead to local denial of service if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: BORA00154903; Issue ID: MSV-7575.

Scores

CVSS v3 4.4
EPSS 0.0010
EPSS Percentile 1.0%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-787
Status published
Products (3)
MediaTek, Inc./MediaTek chipset MT6890
MediaTek, Inc./MediaTek chipset MT6988
MediaTek, Inc./MediaTek chipset MT6990
Published Aug 03, 2026
Tracked Since Aug 03, 2026