CVE-2023-42721 Denial of service in SC9863A

What is CVE-2023-42721?

CVE-2023-42721 is a medium-severity denial of service vulnerability in Google Android, published on 4 Dec 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

In flv extractor, there is a possible missing verification incorrect input. This could lead to local denial of service with no additional execution privileges needed

Which versions are affected by CVE-2023-42721?

It affects 1 product.

Products include Google Android.

How do I fix CVE-2023-42721?

No fix has been published for CVE-2023-42721 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2023-42721 being exploited?

There is no known exploitation of CVE-2023-42721 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-9pgx-3f8j-fmh2.