CVE-2025-20736: Medium severity MediaTek Software Development Kit vulnerability

Published Nov 4, 2025
·
Updated

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: WCNCR00435347; Issue ID: MSV-4049.

Affected Software

11 affected components
All of the following
Any of the following
MediaTek Software Development Kit<=7.6.7.2
OpenWrt OpenWrt=19.07.0
OpenWrt OpenWrt=21.02.0
Any of the following
MediaTek Mt6890
MediaTek MT7615
MediaTek MT7622
MediaTek Mt7663
MediaTek MT7915
MediaTek Mt7916
MediaTek Mt7981
MediaTek Mt7986

Event History

Nov 4, 2025
CVE Published
via MITRE·06:20 AM
Data Sourced
via MITRE·06:20 AM
DescriptionWeakness
Data Sourced
via NVD·07:15 AM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2025-20736?

CVE-2025-20736 has a high severity rating and may allow local privilege escalation for users with system privileges.

2

How do I fix CVE-2025-20736?

To fix CVE-2025-20736, apply the patch identified as WCNCR00435347.

3

What are the affected software versions for CVE-2025-20736?

CVE-2025-20736 affects MediaTek Software Development Kit up to version 7.6.7.2 and specific versions of OpenWrt (19.07.0 and 21.02.0).

4

Is user interaction required to exploit CVE-2025-20736?

User interaction is not needed to exploit CVE-2025-20736, making the vulnerability particularly concerning.

5

What could be the consequence of exploiting CVE-2025-20736?

Exploiting CVE-2025-20736 could lead to local escalation of privileges for a malicious actor who has already obtained system privilege.

Contact

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