CVE-2026-20401

  1. Yack CVE
  2. Vulnerabilities (CVE)
  3. CVE-2026-20401

7.5 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

I

n Modem, there is a possible system crash due to an uncaught exception. This could lead to remote denial of service, if a UE has connected to a rogue base station controlled by the attacker, with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: MOLY01738310; Issue ID: MSV-5933.

References
Link Resource
https://corp.mediatek.com/product-security-bulletin/February-2026 Vendor Advisory
Configurations

Configuration 1 (hide)

AND
cpe:2.3:o:mediatek:nr15:-:*:*:*:*:*:*:*
OR cpe:2.3:h:mediatek:mt2735:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6833:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6853:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6855:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6873:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6875:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6877:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6880:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6883:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6885:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6889:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6890:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6891:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6893:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt8675:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt8771:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt8791:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt8791t:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt8797:-:*:*:*:*:*:*:*
History

04 Feb 2026, 14:29

Type Values Removed Values Added
First Time Mediatek mt8771
Mediatek mt6833
Mediatek mt8791t
Mediatek mt8797
Mediatek mt6875
Mediatek mt6880
Mediatek mt6877
Mediatek mt6889
Mediatek mt2735
Mediatek mt6890
Mediatek mt6855
Mediatek mt8791
Mediatek mt6873
Mediatek
Mediatek mt6893
Mediatek mt6885
Mediatek mt6853
Mediatek mt6883
Mediatek nr15
Mediatek mt8675
Mediatek mt6891
References () https://corp.mediatek.com/product-security-bulletin/February-2026 - () https://corp.mediatek.com/product-security-bulletin/February-2026 - Vendor Advisory
CPE cpe:2.3:h:mediatek:mt8797:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt8675:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt8791:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6885:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6890:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6833:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6891:-:*:*:*:*:*:*:*
cpe:2.3:o:mediatek:nr15:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6880:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt2735:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6853:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6855:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6893:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt8791t:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6877:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6889:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6883:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6873:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt8771:-:*:*:*:*:*:*:*
cpe:2.3:h:mediatek:mt6875:-:*:*:*:*:*:*:*
Summary
  • (es) En el Módem, hay una posible caída del sistema debido a una excepción no capturada. Esto podría llevar a una denegación de servicio remota, si un UE se ha conectado a una estación base maliciosa controlada por el atacante, sin necesidad de privilegios de ejecución adicionales. La interacción del usuario no es necesaria para la explotación. ID del parche: MOLY01738310; ID del problema: MSV-5933.
CWE CWE-754
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.5

02 Feb 2026, 09:15

Type Values Removed Values Added
New CVE
Information

Published : 2026-02-02 09:15

Updated : 2026-02-17 15:16

NVD link : CVE-2026-20401

Mitre link : CVE-2026-20401

CVE.ORG link : CVE-2026-20401

JSON object : View

Products Affected

mediatek

CWE
CWE-617

Reachable Assertion

CWE-754

Improper Check for Unusual or Exceptional Conditions