CVE-2025-20713 Memory corruption in MT6890, MT7615, MT7622, MT7663, MT7915, MT7916, MT7981, MT7986

High 7.8 Published 14 Oct 2025 Updated 26 Feb 2026

A local attacker with System privileges can exploit an out-of-bounds write in the MediaTek Wi-Fi AP driver to escalate privileges.

Exploited in the wild: Not known
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2025-20713?

CVE-2025-20713 is a high-severity memory corruption vulnerability in Mediatek Software Development Kit, published on 14 Oct 2025. It can only be exploited from the same machine or local network, with no action from the victim.

Official 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: WCNCR00432661; Issue ID: MSV-3904.

Weakness: CWE-787, CWE-121

Which versions are affected by CVE-2025-20713?

It affects 2 products.

Products include Mediatek Software Development Kit, Openwrt Openwrt.

How do I fix CVE-2025-20713?

No fix has been published for CVE-2025-20713 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2025-20713 being exploited?

There is no known exploitation of CVE-2025-20713 in the wild and no public exploit code.

All Mediatek Software Development Kit vulnerabilities

Sources

Also known as GHSA-7fvf-phgc-7gpv.