CVE-2022-42531 Privilege escalation in Android

High 7.8 Published 16 Dec 2022 Updated 17 Apr 2025

A local attacker can escalate privileges in the Android kernel via a mitigation bypass in memory allocation, requiring no user 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: Available

What is CVE-2022-42531?

CVE-2022-42531 is a high-severity vulnerability in Google Android, published on 16 Dec 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In mmu_map_for_fw of gs_ldfw_load.c, there is a possible mitigation bypass due to Permissive Memory Allocation. 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-231500967References: N/A

Weakness: CWE-770

Which versions are affected by CVE-2022-42531?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2022-42531?

Apply the vendor's patch.

Is CVE-2022-42531 being exploited?

There is no known exploitation of CVE-2022-42531 in the wild and no public exploit code.

All Google Android vulnerabilities

Sources

Also known as A-231500967, GHSA-qxv5-pj8x-gv57, PUB-A-231500967.