CVE-2020-0099 Security feature bypass in Android

What is CVE-2020-0099?

CVE-2020-0099 is a high-severity vulnerability in Google Android, published on 14 Dec 2020. 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 addWindow of WindowManagerService.java, there is a possible window overlay attack due to an insecure default value. This could lead to local escalation of privilege via tapjacking with no additional execution privileges needed. User interaction is needed for exploitation.Product: AndroidVersions: Android-8.0 Android-8.1 Android-9 Android-10Android ID: A-141745510

Weakness: CWE-1188

Which versions are affected by CVE-2020-0099?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2020-0099?

Apply the vendor's patch.

Is CVE-2020-0099 being exploited?

There is no known exploitation of CVE-2020-0099 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-141745510, ASB-A-141745510, GHSA-hgc7-2xcm-jrxv.