Main Vulnerability Database Vulnerabilities #VU123451

Out-of-bounds write in MediaTek products - CVE-2026-20430

Published: March 3, 2026

Vulnerability identifier: #VU123451

CSH Severity: Low

CVSS v4.0: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

CVE-ID: CVE-2026-20430

CWE-ID: CWE-787

Exploitation vector: Local access

Exploit availability: No public exploit available

Vendor: MediaTek

Affected software:
MT6890
MT7915
MT7916
MT7981
MT7986

Detailed vulnerability description

The vulnerability allows a local application to execute arbitrary code.

The vulnerability exists due to an incorrect bounds check . A local application can execute arbitrary code.

Install security update from vendor's website.