CVE-2019-2221 Security feature bypass in Android

What is CVE-2019-2221?

CVE-2019-2221 is a high-severity vulnerability in Google Android, published on 6 Dec 2019. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In hasActivityInVisibleTask of WindowProcessController.java there’s a possible bypass of user interaction requirements due to incorrect handling of top activities in INITIALIZING state. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android-10Android ID: A-138583650

Which versions are affected by CVE-2019-2221?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2019-2221?

No fix has been published for CVE-2019-2221 yet. Limit exposure of the affected software until one is available.

Is CVE-2019-2221 being exploited?

There is no known exploitation of CVE-2019-2221 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 GHSA-qf37-j9hx-38gx.