CVE-2025-20672 Memory corruption in MT7902, MT7921, MT7922, MT7925, MT7927
A local attacker can exploit an out-of-bounds write in the Bluetooth driver to escalate privileges 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-2025-20672?
CVE-2025-20672 is a critical memory corruption vulnerability in MediaTek, Inc. MT7902, MT7921, MT7922, MT7925, MT7927, published on 2 Jun 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In Bluetooth driver, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilege with User execution privileges needed. User interaction is not needed for exploitation. Patch ID: WCNCR00412257; Issue ID: MSV-3292.
Weakness: CWE-122
Which versions are affected by CVE-2025-20672?
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-2025-20672?
No fix has been published for CVE-2025-20672 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-2025-20672 being exploited?
There is no known exploitation of CVE-2025-20672 in the wild and no public exploit code.
Other vulnerabilities in MediaTek, Inc. 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
- CVE-2025-20675 Null dereference in MT7902, MT7921, MT7922, MT7925, MT7927
Sources
Also known as GHSA-hw75-9xrf-7fg8.