CVE-2025-20675 Null dereference in MT7902, MT7921, MT7922, MT7925, MT7927
A local attacker can cause a system crash in MediaTek Wi-Fi drivers via an uncaught exception, requiring user privileges but no interaction.
- 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-2025-20675?
CVE-2025-20675 is a medium-severity vulnerability in MediaTek, Inc. MT7902, MT7921, MT7922, MT7925, MT7927, published on 2 Jun 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In wlan STA driver, there is a possible system crash due to an uncaught exception. This could lead to local denial of service with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00413201; Issue ID: MSV-3302.
Weakness: CWE-476
Which versions are affected by CVE-2025-20675?
It affects 5 products.
Products include Mediatek Mt7902 Firmware, Mediatek Mt7921 Firmware, Mediatek Mt7922 Firmware, Mediatek Mt7925 Firmware, Mediatek Mt7927 Firmware.
How do I fix CVE-2025-20675?
No fix has been published for CVE-2025-20675 yet. Limit exposure of the affected software until one is available.
Is CVE-2025-20675 being exploited?
There is no known exploitation of CVE-2025-20675 in the wild and no public exploit code.
Other vulnerabilities in MediaTek, Inc. MT7902, MT7921, MT7922, MT7925, MT7927
- CVE-2025-20672 Memory corruption in MT7902, MT7921, MT7922, MT7925, MT7927
- CVE-2026-20495 Missing authorization in MediaTek chipset
- CVE-2026-20482 Denial of service in MediaTek chipset
- CVE-2026-20456 Memory corruption in MediaTek chipset
- CVE-2025-20673 Null dereference in MT7902, MT7921, MT7922, MT7925, MT7927
Sources
Also known as GHSA-3353-8xh7-8f2x.