Vulnerability Monitor

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CVE-2026-20419


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.


Security Impact Summary

This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 6.5, indicating it requires adjacent network access with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts and availability (service disruption) for affected systems. Impacting 28 products from mediatek, from mediatek, from mediatek and 25 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2026, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.


Published

2026-02-02T09:15:56.990

Last Modified

2026-02-05T17:16:13.460

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 6.5 (MEDIUM)

Weaknesses
  • Type: Secondary
    CWE-754

Affected Vendors & Products
Type Vendor Product Version/Range Vulnerable?
Application mediatek nbiot_sdk ≤ 3.6 Yes
Application mediatek software_development_kit ≤ 7.6.7.2 Yes
Hardware mediatek mt6890 - No
Hardware mediatek mt6989tb - No
Hardware mediatek mt7902 - No
Hardware mediatek mt7915 - No
Hardware mediatek mt7916 - No
Hardware mediatek mt7920 - No
Hardware mediatek mt7921 - No
Hardware mediatek mt7922 - No
Hardware mediatek mt7925 - No
Hardware mediatek mt7927 - No
Hardware mediatek mt7981 - No
Hardware mediatek mt7986 - No
Hardware mediatek mt8196 - No
Hardware mediatek mt8668 - No
Hardware mediatek mt8676 - No
Hardware mediatek mt8678 - No
Hardware mediatek mt8775 - No
Hardware mediatek mt8791t - No
Hardware mediatek mt8792 - No
Hardware mediatek mt8793 - No
Hardware mediatek mt8796 - No
Hardware mediatek mt8873 - No
Hardware mediatek mt8883 - No
Hardware mediatek mt8893 - No
Hardware mediatek mt8910 - No
Operating System openwrt openwrt 19.07.0 Yes
Operating System openwrt openwrt 21.02.0 Yes
Hardware mediatek mt6890 - No

References

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For mediatek's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.