PT-2026-5641 · Mediatek · Mt6890

Published 2026-02-02 · Updated 2026-02-02 · CVE-2026-20419

Positive Technologies (AI Summary)

CVSS v3.1

6.5

Medium

Base vector

AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Name of the Vulnerable Software and Affected Versions MediaTek MT6890 (affected versions not specified)

Description The WLAN AP/STA firmware may become unresponsive due to an uncaught exception. This can result in a remote denial of service, requiring no additional execution privileges or user interaction.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Improper Check for Exceptional Conditions

Weakness Enumeration

CWE-754

Related Identifiers

CVE-2026-20419

Affected Products

Mt6890

References · 7

• https://nvd.nist.gov/vuln/detail/CVE-2026-20419 · Security Note
• https://osv.dev/vulnerability/CVE-2026-20419 · Vendor Advisory
• https://corp.mediatek.com/product-security-bulletin/February-2026 · Vendor Advisory
• https://twitter.com/VulmonFeeds/status/2018302532481614032 · Twitter Post
• https://twitter.com/vuldb/status/2018257476412657869 · Twitter Post
• https://t.me/CVEtracker/43479 · Telegram Post
• https://twitter.com/CVEnew/status/2018249228557160737 · Twitter Post