Is CVE-2026-20419 actively exploited?

CVE-2026-20419 has no public evidence of in-the-wild exploitation as of 2026-02-05.

What is the CVSS score for CVE-2026-20419?

CVE-2026-20419 has a CVSS score of 6.5 (MEDIUM severity). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

How do I patch CVE-2026-20419?

Patch guidance is available from mediatek security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2026-20419.

CVE-2026-20419 - remediation guidance & executive summary

Q: Which products are affected by CVE-2026-20419?

4 products: mediatek nbiot sdk, mediatek software development kit, openwrt openwrt, openwrt openwrt.

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.

CVSS Metrics

Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector: adjacent network
Complexity: low
Privileges: none
User Action: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high
Weaknesses: CWE-754

Metadata

Primary Vendor: MEDIATEK
Published: 2/2/2026
Last Modified: 2/5/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

mediatek : nbiot_sdkmediatek : software_development_kitopenwrt : openwrtopenwrt : openwrt

Remediation Guidance

Executive Summary

Cite this page

CVE-2026-20419. CVEDatabase.com. Retrieved 1 May 2026. https://cvedatabase.com/cve/CVE-2026-20419

View on NIST NVD

CVE-2026-20419 vulnerability