Main Vulnerability Database Vulnerabilities #VU123456

#VU123456 Time-of-check Time-of-use (TOCTOU) Race Condition in MediaTek products - CVE-2026-20438

Published: March 3, 2026

Vulnerability identifier: #VU123456

Vulnerability risk: Low

CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear

CVE-ID: CVE-2026-20438

CWE-ID: CWE-367

Exploitation vector: Local access

Exploit availability: No public exploit available

Vulnerable software:
MT2718
MT6899
MT6991
MT8168
MT8169
MT8186
MT8188
MT8678
MT8695
MT8696
MT8793

Software vendor:
MediaTek

Description

The vulnerability allows a local application to perform service disruption.

The vulnerability exists due to a race condition . A local application can perform service disruption.

Install security update from vendor's website.