GPAC 2.4 MP4Box heap-based overflow

Summaryinfo

A vulnerability has been found in GPAC 2.4 and classified as critical. This affects an unknown function of the component MP4Box. The manipulation leads to heap-based overflow. This vulnerability is documented as CVE-2025-55661. The attack can be initiated remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in GPAC 2.4. It has been rated as critical. This issue affects an unknown part of the component MP4Box. The manipulation with an unknown input leads to a heap-based overflow vulnerability. Using CWE to declare the problem leads to CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). Impacted is availability. The summary by CVE is:

A heap buffer overflow in the Opus audio stream parser component of GPAC MP4Box v2.4 allows attackers to cause a Denial of Service (DoS) via supplying a crafted MP4 file.

The advisory is shared at infosec.exchange. The identification of this vulnerability is CVE-2025-55661 since 08/13/2025. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. It demands that the victim is doing some kind of user interaction. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 06/16/2026).

The vulnerability scanner Nessus provides a plugin with the ID 320989 (Linux Distros Unpatched Vulnerability : CVE-2025-55661), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Tenable (320989). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Multimedia Player Software

Name

• GPAC

Version

• 2.4

License

• open-source

CPE 2.3info

• 🔒

CPE 2.2info

• 🔒

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Entryinfo

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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