CVE-2026-20419

Name: CVE-2026-20419
Creator: NVD / NIST
Published: 2026-02-02T09:15:56.99+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.73%

Last modified Jun 17, 2026

CVE-2026-20419 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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. EPSS estimates a 0.73% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Probability

0.73%

49.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-754

Affected Software

Vendor	Product	Versions
Mediatek	Nbiot Sdk	<= 3.6
Mediatek	Software Development Kit	<= 7.6.7.2
Openwrt	Openwrt	19.07.0
Openwrt	Openwrt	21.02.0

References

https://corp.mediatek.com/product-security-bulletin/February-2026Vendor Advisory

Timeline

Published: Feb 2, 2026
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2026-20419?

How severe is CVE-2026-20419?

CVE-2026-20419 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.73% probability of exploitation in the next 30 days.

How do I fix CVE-2026-20419?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-20419?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST