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CVE Vulnerability Details :
CVE-2026-9567
PUBLISHED
More InfoOfficial Page
Assigner-VulDB
Assigner Org ID-1af790b2-7ee1-4545-860a-a788eba489b5
View Known Exploited Vulnerability (KEV) details
Published At-26 May, 2026 | 17:45
Updated At-26 May, 2026 | 18:23
Rejected At-
▼CVE Numbering Authority (CNA)
GPAC MP4Box isom_intern.c MergeFragment null pointer dereference

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.

Affected Products
Vendor
n/a
Product
GPAC
CPEs
  • cpe:2.3:a:gpac:gpac:*:*:*:*:*:*:*:*
Modules
  • MP4Box
Versions
Affected
  • 2.0
  • 2.1
  • 2.2
  • 2.3
  • 2.4.0
Problem Types
TypeCWE IDDescription
CWECWE-476NULL Pointer Dereference
CWECWE-404Denial of Service
Type: CWE
CWE ID: CWE-476
Description: NULL Pointer Dereference
Type: CWE
CWE ID: CWE-404
Description: Denial of Service
Metrics
VersionBase scoreBase severityVector
4.04.8MEDIUM
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
3.13.3LOW
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
3.03.3LOW
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
2.01.7N/A
AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:OF/RC:C
Version: 4.0
Base score: 4.8
Base severity: MEDIUM
Vector:
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
Version: 3.1
Base score: 3.3
Base severity: LOW
Vector:
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
Version: 3.0
Base score: 3.3
Base severity: LOW
Vector:
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C
Version: 2.0
Base score: 1.7
Base severity: N/A
Vector:
AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:OF/RC:C
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
reporter
fczhang (VulDB User)
Timeline
EventDate
Advisory disclosed2026-05-26 00:00:00
VulDB entry created2026-05-26 02:00:00
VulDB entry last update2026-05-26 12:57:31
Event: Advisory disclosed
Date: 2026-05-26 00:00:00
Event: VulDB entry created
Date: 2026-05-26 02:00:00
Event: VulDB entry last update
Date: 2026-05-26 12:57:31
Replaced By
Rejected Reason
References
HyperlinkResource
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
Hyperlink: https://vuldb.com/vuln/365629
Resource:
vdb-entry
technical-description
Hyperlink: https://vuldb.com/vuln/365629/cti
Resource:
signature
permissions-required
Hyperlink: https://vuldb.com/submit/816075
Resource:
third-party-advisory
Hyperlink: https://github.com/gpac/gpac/issues/3549
Resource:
issue-tracking
Hyperlink: https://github.com/user-attachments/files/27196918/poc.zip
Resource:
exploit
Hyperlink: https://github.com/makesoftwaresafe/gpac/commit/525bf1af642c30af04e4df5345e6d798c0a4d8a1
Resource:
patch
Hyperlink: https://github.com/gpac/gpac/
Resource:
product
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Details not found