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MEDIUM · 6.7

CVE-2025-20739

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 if a malicious actor has already obtained the System privi...

Vulnerability Description

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 if a malicious actor has already obtained the System privilege. User interaction is not needed for exploitation. Patch ID: WCNCR00435340; Issue ID: MSV-4038.

CVSS Score

6.7

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
MediatekSoftware Development Kit<= 7.6.7.2
OpenwrtOpenwrt19.07.0
MediatekMt6890-
MediatekMt7615-
MediatekMt7622-
MediatekMt7663-
MediatekMt7915-
MediatekMt7916-
MediatekMt7981-
MediatekMt7986-

Related Weaknesses (CWE)

CWE-121CWE-787

References

FAQ

What is CVE-2025-20739?

CVE-2025-20739 is a vulnerability with a CVSS score of 6.7 (MEDIUM). 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 if a malicious actor has already obtained the System privi...

How severe is CVE-2025-20739?

CVE-2025-20739 has been rated MEDIUM with a CVSS base score of 6.7/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-20739?

Check the references section above for vendor advisories and patch information. Affected products include: Mediatek Software Development Kit, Openwrt Openwrt, Mediatek Mt6890, Mediatek Mt7615, Mediatek Mt7622.