CVE-2025-20709

In wlan AP driver, there is a possible out of bounds write due to an incorrect bounds check. This could lead to remote (proximal/adjacent) escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00415809; Issue ID: MSV-3405.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

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

Configurations

Configuration 1 (hide)

AND

cpe:2.3:a:mediatek:software_development_kit:*:*:*:*:*:*:*:*

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

Configuration 2 (hide)

AND

OR	cpe:2.3:o:openwrt:openwrt:19.07.0:-::::::
	cpe:2.3:o:openwrt:openwrt:21.02.0:-::::::

cpe:2.3:h:mediatek:mt6890:-:*:*:*:*:*:*:*

History

08 Oct 2026, 11:10

Type	Values Removed	Values Added
Summary		(es) En el controlador de AP WLAN, existe una posible escritura fuera de límites debido a una comprobación de límites incorrecta. Esto podría conducir a una escalada de privilegios remota (próxima/adyacente) sin necesidad de privilegios de ejecución adicionales. La interacción del usuario no es necesaria para la explotación. ID de parche: WCNCR00415809; ID de problema: MSV-3405.

Information

Published : 2025-10-14 10:15

Updated : 2026-10-08 12:10

NVD link : CVE-2025-20709

Mitre link : CVE-2025-20709

CVE.ORG link : CVE-2025-20709

JSON object : View

Products Affected

openwrt

openwrt

mediatek

mt7981
mt7986
mt6890
software_development_kit
mt7915
mt7916

CWE

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

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