CVE-2026-20408

Published Feb 2, 2026

Last updated a month ago

Overview

Description
In wlan, there is a possible out of bounds write due to a heap buffer overflow. This could lead to remote (proximal/adjacent) escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00461651; Issue ID: MSV-4758.
Source
security@mediatek.com
NVD status
Analyzed
Products
software_development_kit, openwrt

Risk scores

CVSS 3.1

Type
Secondary
Base score
8.8
Impact score
5.9
Exploitability score
2.8
Vector string
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity
HIGH

Weaknesses

security@mediatek.com
CWE-122
nvd@nist.gov
CWE-787

Social media

Hype score
Not currently trending

Configurations

References

Sources include official advisories and independent security research.