CVE-2023-50120 Denial of service in n/a

Medium 5.5 Published 10 Jan 2024 Updated 17 Jun 2025

Attackers can cause a denial of service via a crafted MP4 file due to an infinite loop in GPAC's av1_uvlc function.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2023-50120?

CVE-2023-50120 is a medium-severity denial of service vulnerability in Gpac Gpac, published on 10 Jan 2024. 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

MP4Box GPAC version 2.3-DEV-rev636-gfbd7e13aa-master was discovered to contain an infinite loop in the function av1_uvlc at media_tools/av_parsers.c. This vulnerability allows attackers to cause a Denial of Service (DoS) via a crafted MP4 file.

Weakness: CWE-835

Which versions are affected by CVE-2023-50120?

It affects 1 product.

Products include Gpac Gpac.

How do I fix CVE-2023-50120?

No fix has been published for CVE-2023-50120 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-2023-50120 being exploited?

There is no known exploitation of CVE-2023-50120 in the wild and no public exploit code.

All Gpac Gpac vulnerabilities

Sources

Also known as GHSA-4ccc-vvpw-p7r3, UBUNTU-CVE-2023-50120.