CVE-2025-20654 Memory corruption in MT6890, MT7622, MT7915, MT7916, MT7981, MT7986
A remote attacker can execute arbitrary code via an out-of-bounds write in MediaTek Wi-Fi firmware without user interaction.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-20654?
CVE-2025-20654 is a critical memory corruption vulnerability in Mediatek Software Development Kit, published on 7 Apr 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In wlan service, there is a possible out of bounds write due to an incorrect bounds check. This could lead to remote code execution with no additional execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00406897; Issue ID: MSV-2875.
Weakness: CWE-787
Which versions are affected by CVE-2025-20654?
It affects 8 products.
Products include Mediatek Mt6890, Mediatek Mt7622, Mediatek Mt7915, Mediatek Mt7916, Mediatek Mt7981, Mediatek Mt7986 and 2 more.
How do I fix CVE-2025-20654?
No fix has been published for CVE-2025-20654 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-2025-20654 being exploited?
There is no known exploitation of CVE-2025-20654 in the wild and no public exploit code.
Sources
Also known as GHSA-xrqc-54h4-vmvv.