CVE-2026-20419

Published Feb 2, 2026

Last updated a month ago

Overview

Description
In wlan AP/STA firmware, there is a possible system becoming irresponsive due to an uncaught exception. This could lead to remote (proximal/adjacent) denial of service with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00461663 / WCNCR00463309; Issue ID: MSV-4852.
Source
security@mediatek.com
NVD status
Modified
Products
nbiot_sdk, software_development_kit, openwrt

Risk scores

CVSS 3.1

Type
Secondary
Base score
6.5
Impact score
3.6
Exploitability score
2.8
Vector string
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Severity
MEDIUM

Weaknesses

security@mediatek.com
CWE-754

Social media

Hype score
Not currently trending

Configurations

References

Sources include official advisories and independent security research.