Low severity · published May 26, 2026
CVE-2026-9567
GPAC MP4Box isom_intern.c MergeFragment null pointer dereference
3.3
CVSS
0.1%
EPSS
No
On KEV
Description
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 vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Attack vector
Local
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 2% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
GP
GPAC · Gpac
2.0; 2.1; 2.2; 2.3; 2.4.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-9567
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-9567
github.com
https://github.com/gpac/gpac/
github.com
https://github.com/gpac/gpac/issues/3549
github.com
https://github.com/makesoftwaresafe/gpac/commit/525bf1af642c30af04e4df5345e6d798c0a4d8a1
github.com
https://github.com/user-attachments/files/27196918/poc.zip
vuldb.com
https://vuldb.com/submit/816075
vuldb.com
https://vuldb.com/vuln/365629
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