CVE-2022-20377 Privilege escalation in Android

What is CVE-2022-20377?

CVE-2022-20377 is a medium-severity vulnerability in Google Android, published on 11 Aug 2022. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In TBD of keymaster_ipc.cpp, there is a possible to force gatekeeper, fingerprint, and faceauth to use a known HMAC key. 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-222339795References: N/A

Which versions are affected by CVE-2022-20377?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2022-20377?

Apply the vendor's patch.

Is CVE-2022-20377 being exploited?

There is no known exploitation of CVE-2022-20377 in the wild and no public exploit code.

Other vulnerabilities in Google Android

• CVE-2026-58704 Google Pixel Improper Authorization Exploited High 8.8
• CVE-2025-48543 Android Runtime Use-After-Free Exploited High 8.8
• CVE-2023-35674 Android Framework Privilege Escalation Exploited High 8.8
• CVE-2025-48595 Android Framework Integer Overflow Exploited High 8.4
• CVE-2024-32896 Android Pixel Privilege Escalation Exploited High 8.1

All Google Android vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as A-222339795, GHSA-pr4w-5j3v-gj63, PUB-A-222339795.