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CVE-2026-9567

GPAC MP4Box isom_intern.c MergeFragment null pointer dereference

Published: May 26, 2026Updated: May 26, 2026 Sources: CVE List NVD
NVD MITRE
3.3CVSS
LOW

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.

EPSS Score
N/A
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

CVSS Vector Breakdown

AV:LAC:LPR:LUI:NS:UC:NI:NA:L
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:LAvailability
Low

Weaknesses

CWE-404CWE-476

Affected Products

GPAC
n/a

Attack Graph

Products CVE Techniques Tactics

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Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

2 techniques
Impact
Initial Access
View detailed technique mapping

References

https://vuldb.com/vuln/365629
vuldb.com
https://vuldb.com/vuln/365629/cti
vuldb.com
https://vuldb.com/submit/816075
vuldb.com
and 4 more references View all →

Timeline

Published
May 26, 2026
Last Updated
May 26, 2026

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