CVE-2025-20686: High severity MediaTek Software Development Kit vulnerability

Published Jul 8, 2025
·
Updated

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) code execution with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00415570; Issue ID: MSV-3404.

Affected Software

9 affected components
All of the following
Any of the following
MediaTek Software Development Kit<=7.6.7.2
OpenWrt OpenWrt=19.07.0
Any of the following
MediaTek Mt6890
MediaTek MT7915
MediaTek Mt7916
MediaTek Mt7981
MediaTek Mt7986
All of the following
OpenWrt OpenWrt=21.02.0
MediaTek Mt6890

Event History

Jul 8, 2025
CVE Published
via MITRE·02:00 AM
Data Sourced
via MITRE·02:00 AM
DescriptionWeakness
Data Sourced
via NVD·03:15 AM
DescriptionSeverityWeaknessAffected Software

Frequently Asked Questions

1

What is the severity of CVE-2025-20686?

CVE-2025-20686 is classified as a critical vulnerability due to its potential for remote code execution.

2

What are the affected versions for CVE-2025-20686?

CVE-2025-20686 affects MediaTek Software Development Kit version up to 7.6.7.2 and OpenWrt version 19.07.0 and 21.02.0.

3

How do I fix CVE-2025-20686?

To fix CVE-2025-20686, update to the latest versions of the MediaTek Software Development Kit and OpenWrt that include the security patch.

4

What type of attack can exploit CVE-2025-20686?

CVE-2025-20686 can be exploited through a proximal or adjacent attack without requiring additional execution privileges.

5

Is user interaction needed for exploiting CVE-2025-20686?

No, user interaction is not needed for the exploitation of CVE-2025-20686.

Contact

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