Main Vulnerability Database Vulnerabilities #VU123454

#VU123454 Buffer overflow in MediaTek products - CVE-2026-20436

Published: March 3, 2026

Vulnerability identifier: #VU123454

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-2026-20436

CWE-ID: CWE-120

Exploitation vector: Local access

Exploit availability: No public exploit available

Vulnerable software:
MT7902
MT7920
MT7921
MT7922
MT7925
MT7927
MT8696

Software vendor:
MediaTek

Description

The vulnerability allows a local application to perform service disruption.

The vulnerability exists due to a missing bounds check . A local application can perform service disruption.

Install security update from vendor's website.