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CVE-2026-20419 Details

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.x Severity and Vector Strings:

CNA: CISA-ADPCVSS-B:6.5 MEDIUMVector:CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URL	Source(s)	Tag(s)
https://corp.mediatek.com/product-security-bulletin/February-2026	[email protected]	Vendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-754	Improper Check for Unusual or Exceptional Conditions	[email protected]

Affected Products

Product	Versions
mediatek nbiot sdk	<= 3.6
CPE cpe:2.3:a:mediatek:nbiot_sdk:::::::: Remediation No remediation found in references.
mediatek software development kit	<= 7.6.7.2
CPE cpe:2.3:a:mediatek:software_development_kit:::::::: Remediation No remediation found in references.
mediatek mt6890	All versions
CPE cpe:2.3:h:mediatek:mt6890:-:::::::* Remediation No remediation found in references.
mediatek mt6989tb	All versions
CPE cpe:2.3:h:mediatek:mt6989tb:-:::::::* Remediation No remediation found in references.
mediatek mt7902	All versions
CPE cpe:2.3:h:mediatek:mt7902:-:::::::* Remediation No remediation found in references.
mediatek mt7915	All versions
CPE cpe:2.3:h:mediatek:mt7915:-:::::::* Remediation No remediation found in references.
mediatek mt7916	All versions
CPE cpe:2.3:h:mediatek:mt7916:-:::::::* Remediation No remediation found in references.
mediatek mt7920	All versions
CPE cpe:2.3:h:mediatek:mt7920:-:::::::* Remediation No remediation found in references.
mediatek mt7921	All versions
CPE cpe:2.3:h:mediatek:mt7921:-:::::::* Remediation No remediation found in references.
mediatek mt7922	All versions
CPE cpe:2.3:h:mediatek:mt7922:-:::::::* Remediation No remediation found in references.
mediatek mt7925	All versions
CPE cpe:2.3:h:mediatek:mt7925:-:::::::* Remediation No remediation found in references.
mediatek mt7927	All versions
CPE cpe:2.3:h:mediatek:mt7927:-:::::::* Remediation No remediation found in references.
mediatek mt7981	All versions
CPE cpe:2.3:h:mediatek:mt7981:-:::::::* Remediation No remediation found in references.
mediatek mt7986	All versions
CPE cpe:2.3:h:mediatek:mt7986:-:::::::* Remediation No remediation found in references.
mediatek mt8196	All versions
CPE cpe:2.3:h:mediatek:mt8196:-:::::::* Remediation No remediation found in references.
mediatek mt8668	All versions
CPE cpe:2.3:h:mediatek:mt8668:-:::::::* Remediation No remediation found in references.
mediatek mt8676	All versions
CPE cpe:2.3:h:mediatek:mt8676:-:::::::* Remediation No remediation found in references.
mediatek mt8678	All versions
CPE cpe:2.3:h:mediatek:mt8678:-:::::::* Remediation No remediation found in references.
mediatek mt8775	All versions
CPE cpe:2.3:h:mediatek:mt8775:-:::::::* Remediation No remediation found in references.
mediatek mt8791t	All versions
CPE cpe:2.3:h:mediatek:mt8791t:-:::::::* Remediation No remediation found in references.
mediatek mt8792	All versions
CPE cpe:2.3:h:mediatek:mt8792:-:::::::* Remediation No remediation found in references.
mediatek mt8793	All versions
CPE cpe:2.3:h:mediatek:mt8793:-:::::::* Remediation No remediation found in references.
mediatek mt8796	All versions
CPE cpe:2.3:h:mediatek:mt8796:-:::::::* Remediation No remediation found in references.
mediatek mt8873	All versions
CPE cpe:2.3:h:mediatek:mt8873:-:::::::* Remediation No remediation found in references.
mediatek mt8883	All versions
CPE cpe:2.3:h:mediatek:mt8883:-:::::::* Remediation No remediation found in references.
mediatek mt8893	All versions
CPE cpe:2.3:h:mediatek:mt8893:-:::::::* Remediation No remediation found in references.
mediatek mt8910	All versions
CPE cpe:2.3:h:mediatek:mt8910:-:::::::* Remediation No remediation found in references.
openwrt openwrt	19.07.0 - 21.02.0 -
CPE cpe:2.3:o:openwrt:openwrt:19.07.0:-:::::: cpe:2.3:o:openwrt:openwrt:21.02.0:-:::::: Remediation No remediation found in references.

Change History

6 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Jun 17, 2026	CVE Modified	CISA-ADP
Feb 5, 2026	CVE Modified	CISA-ADP
Feb 3, 2026	Initial Analysis	[email protected]
Feb 2, 2026	CVE Modified	CISA-ADP
Feb 2, 2026	New CVE Received	[email protected]

CVE-2026-20419 Details

Description

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References to Advisories, Solutions, and Tools

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Change History

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