CVE-2025-20747 Memory corruption in MT2718, MT2737, MT6835, MT6878, MT6886, MT6897, MT6899, MT6982, MT6985, MT6986, MT6986D, MT6989, MT6990, MT6991, MT8676, MT8678, MT8755, MT8893
A local attacker with System privileges can exploit an out-of-bounds write in the GNSS service to escalate privileges.
- Exploited in the wild
- Not known
- Login needed
- An administrator
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-20747?
CVE-2025-20747 is a medium-severity memory corruption vulnerability in Google Android, published on 4 Nov 2025. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
In gnss service, 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: ALPS10010443; Issue ID: MSV-3966.
Which versions are affected by CVE-2025-20747?
It affects 5 products.
Products include Google Android, Linuxfoundation Yocto, Openwrt Openwrt, Rdkcentral Rdk-B, Zephyrproject Zephyr.
How do I fix CVE-2025-20747?
No fix has been published for CVE-2025-20747 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-2025-20747 being exploited?
There is no known exploitation of CVE-2025-20747 in the wild and no public exploit code.
Other vulnerabilities in Google Android
Sources
Also known as GHSA-xc4v-px56-ffcm.