Low 3.3Published May 26, 2026

CVE-2026-9567GPAC MP4Box isom_intern.c MergeFragment null pointer dereference

Updated under an hour ago (Oct 26, 2026, 2:10 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Every CVE for n/a GPAC

Exploited in the last 30 days

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.

CVSS: 3.3 LOW (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
Weakness (CWE): CWE-476, CWE-404
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: VulDB
NVD analysis: Deferred
Record last updated: May 26, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

n/a GPAC gpac:gpac	2.0; 2.1; 2.2; 2.3; 2.4.0	CNA record

References

References

https://vuldb.com/vuln/365629	vdb-entry, technical-description
https://vuldb.com/vuln/365629/cti	signature, permissions-required
https://vuldb.com/submit/816075	third-party-advisory
https://github.com/gpac/gpac/issues/3549	issue-tracking
https://github.com/user-attachments/files/27196918/poc.zip	exploit
https://github.com/makesoftwaresafe/gpac/commit/525bf1af642c30af04e4df5345e6d798c0a4d8a1	patch
https://github.com/gpac/gpac/	product

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.