CVE-2021-0636 Memory corruption in Android

What is CVE-2021-0636?

CVE-2021-0636 is a high-severity memory corruption vulnerability in Google Android, published on 6 Oct 2021. 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

When extracting the incorrectly formatted avi file, the memory is damaged, the playback interface shows that the video cannot be played, and the log is found to be crashed. This problem may lead to hacker malicious code attacks, resulting in the loss of user rights.Product: Androidversion: Android-10Android ID: A-189392423

Which versions are affected by CVE-2021-0636?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2021-0636?

Apply the vendor's patch.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2021-0636 being exploited?

There is no known exploitation of CVE-2021-0636 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-189392423, ASB-A-189392423, GHSA-whhq-5m9q-h5q5, U-1600513.