Instituto Nacional de ciberseguridad. Sección Incibe
Instituto Nacional de Ciberseguridad. Sección INCIBE-CERT

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CVE-2026-20419

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
02/02/2026
Last modified:
05/02/2026

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.

Impact

Vector 3.x
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 6.50 MEDIUM
Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Adjacent
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x
6.50
Severity 3.x
MEDIUM

Vulnerable products and versions

CPE From Up to
cpe:2.3:a:mediatek:nbiot_sdk:*:*:*:*:*:*:*:* 3.6 (including)
cpe:2.3:a:mediatek:software_development_kit:*:*:*:*:*:*:*:* 7.6.7.2 (including)
cpe:2.3:h:mediatek:mt6890:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6989tb:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt7902:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt7915:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt7916:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt7920:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt7921:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt7922:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt7925:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt7927:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt7981:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt7986:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt8196:-:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools