CVE-2021-39691 Security feature bypass in Android

What is CVE-2021-39691?

CVE-2021-39691 is a high-severity vulnerability in Google Android, published on 15 Jun 2022. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

In WindowManager, there is a possible tapjacking attack due to an incorrect window flag when processing user input. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-10 Android-11 Android-12Android ID: A-157929241

Weakness: CWE-1021

Which versions are affected by CVE-2021-39691?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2021-39691?

Apply the vendor's patch.

Is CVE-2021-39691 being exploited?

There is no known exploitation of CVE-2021-39691 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-157929241, ASB-A-157929241, GHSA-4fq5-hp4p-wwmv.