Quick answers
- Is CVE-2025-55642 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2025-55642 being exploited in the wild.
- How severe is CVE-2025-55642?
- Informational severity, published 15 June 2026.
- Which products and versions are affected?
- Gpac MP4Box 2.4.
- Is there a fix for CVE-2025-55642?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2025-55642 attacked?
- It is attacked with local access, in a software library.
- Am I affected by CVE-2025-55642?
- Check whether you run Gpac MP4Box at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
A floating point exception (specifically a divide-by-zero error) exists in GPAC MP4Box v2.4 within the avidmx_process function located in isomedia/isom_write.c. The vulnerability is triggered when the application processes a malformed or specially crafted AVI file. An attacker can exploit this by providing a malicious file to be processed by MP4Box, leading to a denial-of-service (DoS) condition via application crash. This is a local attack vector requiring the user or an automated system to run the utility against the malicious input.
Affected products
- GPAC MP4Box 2.4
Timeline
- 2026-06-15: disclosed: Initial NVD publication date