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Vulnerability record · CVE-2026-20419 · published 2 February 2026

CVE-2026-20419: Mediatek nbiot sdk vulnerability

Mediatek · Nbiot Sdk

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.

6.5 CVSS 3.1 Medium EPSS 0.73% · top 47.6% CWE-754 · CWE-754
6.5CVSS 3.1 base score
0.73%EPSS exploitation probability, 30 days
NoNot in CISA KEV
3Affected product versions listed by NVD
1References
17 Jun 2026Last modified by NVD

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

Affected products

3 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-20419), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.