CVE-2025-20733

In wlan AP driver, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00441509; Issue ID: MSV-4138.

CVSS v3 7.8 HIGH

7.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 1.8 / Impact : 5.9

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://corp.mediatek.com/product-security-bulletin/November-2025	Vendor Advisory

Configurations

Configuration 1 (hide)

AND

OR	cpe:2.3:a:mediatek:software_development_kit::::::::
	cpe:2.3:o:openwrt:openwrt:19.07.0:-::::::
	cpe:2.3:o:openwrt:openwrt:21.02.0:-::::::

OR	cpe:2.3:h:mediatek:mt6890:-:::::::*
	cpe:2.3:h:mediatek:mt7615:-:::::::*
	cpe:2.3:h:mediatek:mt7622:-:::::::*
	cpe:2.3:h:mediatek:mt7663:-:::::::*
	cpe:2.3:h:mediatek:mt7915:-:::::::*
	cpe:2.3:h:mediatek:mt7916:-:::::::*
	cpe:2.3:h:mediatek:mt7981:-:::::::*
	cpe:2.3:h:mediatek:mt7986:-:::::::*

History

18 Oct 2026, 21:10

Type	Values Removed	Values Added
Summary		(es) En el controlador del AP WLAN, existe una posible escritura fuera de límites debido a una verificación de límites incorrecta. Esto podría llevar a una escalada local de privilegios con privilegios de ejecución de usuario necesarios. No se necesita interacción del usuario para la explotación. ID del parche: WCNCR00441509; ID del problema: MSV-4138.

Information

Published : 2025-11-04 07:15

Updated : 2026-10-18 21:10

NVD link : CVE-2025-20733

Mitre link : CVE-2025-20733

CVE.ORG link : CVE-2025-20733

JSON object : View

Products Affected

openwrt

openwrt

mediatek

mt7981
mt7986
mt7615
mt6890
software_development_kit
mt7915
mt7622
mt7663
mt7916

CWE

CWE-122

Heap-based Buffer Overflow

CWE-787

Out-of-bounds Write

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