CVE-2026-9567

EUVD-2026-31945

26.05.2026, 18:16

A security flaw has been discovered in GPAC up to 2.4.0. Affected is the function MergeFragment of the file src/isomedia/isom_intern.c of the component MP4Box. The manipulation results in null pointer dereference. The attack needs to be approached locally. The exploit has been released to the public and may be used for attacks. The patch is identified as 525bf1af642c30af04e4df5345e6d798c0a4d8a1. It is advisable to implement a patch to correct this issue.

Provider	Type	Base Score	Atk. Vector	Atk. Complexity	Priv. Required	Vector
NIST	Primary	3.3 LOW	LOCAL	LOW	LOW	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Awaiting analysis

This vulnerability is currently awaiting analysis.

Base Score

CVSS 3.x

EPSS Score

Percentile: 1%

Debian Releases

Debian Product

Codename

gpac

bullseye	vulnerable
bullseye (security)	vulnerable

Ubuntu Releases

Ubuntu Product

Codename

gpac

bionic	needs-triage
focal	needs-triage
jammy	needs-triage
noble	needs-triage
questing	dne
resolute	dne
trusty	needs-triage

Common Weakness Enumeration

CWE-404 - Improper Resource Shutdown or Release
The program does not release or incorrectly releases a resource before it is made available for re-use.

References

https://github.com/gpac/gpac/

https://github.com/gpac/gpac/issues/3549

https://github.com/makesoftwaresafe/gpac/commit/525bf1af642c30af04e4df5345e6d798c0a4d8a1

https://github.com/user-attachments/files/27196918/poc.zip

https://vuldb.com/submit/816075

https://vuldb.com/vuln/365629

https://vuldb.com/vuln/365629/cti