CVE-2025-20795 Memory corruption in MediaTek chipset

High 7.8 Published Updated

A missing bounds check in KeyInstall allows local privilege escalation for attackers with System privileges on MediaTek chipsets.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2025-20795?

CVE-2025-20795 is a high-severity memory corruption vulnerability in Google Android, published on 6 Jan 2026. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In KeyInstall, there is a possible out of bounds write due to a missing 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: ALPS10276761; Issue ID: MSV-5141.

Weakness: CWE-787

Which versions are affected by CVE-2025-20795?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2025-20795?

Apply the vendor's patch.

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

Is CVE-2025-20795 being exploited?

There is no known exploitation of CVE-2025-20795 in the wild and no public exploit code.

All Google Android vulnerabilities

Sources

Also known as A-457250114, ASB-A-457250114, GHSA-rq4r-fccv-98m7, M-ALPS10276761.

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