CVE-2020-0041 Android Kernel Out-of-Bounds Write

Exploited in the wild High 7.8 Published 10 Mar 2020 Updated 21 Oct 2025

A local attacker can exploit an out-of-bounds write in the Android kernel binder driver to escalate privileges without user interaction.

Exploited in the wild: Since 3 Nov 2021
Login needed: Any signed-in user
Attackable: Local or same network only
Victim action needed: Not needed
Fix: Available

What is CVE-2020-0041?

CVE-2020-0041 is a high-severity memory corruption vulnerability in Google Android, published on 10 Mar 2020. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In binder_transaction of binder.c, there is a possible out of bounds write due to an incorrect bounds check. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-145988638References: Upstream kernel

Weakness: CWE-20

Which versions are affected by CVE-2020-0041?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2020-0041?

Apply the vendor's patch. US federal agencies must fix it by 3 May 2022.

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

Is CVE-2020-0041 being exploited?

Yes. Attackers have exploited CVE-2020-0041 in the wild since at least 3 Nov 2021.

Public exploit code: 6 proofs of concept on GitHub.

All Google Android vulnerabilities

Sources

Also known as DEBIAN-CVE-2020-0041, GHSA-jwfh-687w-6qp5, UBUNTU-CVE-2020-0041.