CVE-2025-55659

Name: CVE-2025-55659
Creator: NVD / NIST
Published: 2026-06-09T19:17:31.64+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.34%

Last modified Jun 17, 2026

CVE-2025-55659 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. A NULL pointer dereference in the ctts_box_write function (isomedia/box_code_base.c) of GPAC MP4Box v2.4 allows attackers to cause a Denial of Service (DoS) via supplying a crafted MP4 file.. EPSS estimates a 0.34% chance of exploitation in the next 30 days.

Description

A NULL pointer dereference in the ctts_box_write function (isomedia/box_code_base.c) of GPAC MP4Box v2.4 allows attackers to cause a Denial of Service (DoS) via supplying a crafted MP4 file.

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS Probability

0.34%

26.4th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-476

Affected Software

Vendor	Product	Versions
Gpac	Gpac	2.4

References

https://infosec.exchange/@sigdevel/116710743410087676Exploit, Mitigation, Third Party Advisory
http://www.openwall.com/lists/oss-security/2026/06/13/17

Timeline

Published: Jun 9, 2026
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2025-55659?

A NULL pointer dereference in the ctts_box_write function (isomedia/box_code_base.c) of GPAC MP4Box v2.4 allows attackers to cause a Denial of Service (DoS) via supplying a crafted MP4 file.

How severe is CVE-2025-55659?

CVE-2025-55659 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.34% probability of exploitation in the next 30 days.

How do I fix CVE-2025-55659?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2025-55659?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST