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

Quick assessment

Affected
n/a GPAC
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

GPAC是GPAC开源的一款开源的多媒体框架。 GPAC 2.4.0及之前版本存在代码问题漏洞，该漏洞源于MP4Box组件中文件src/isomedia/isom_intern.c的MergeFragment函数操作不当，可能导致空指针取消引用。

CVSS 3.3 · Low EPSS 0.11% · P2

Affected Version Matrix 5

VendorProduct Version RangeStatus
n/a GPAC 2.0 affected
2.1 affected
2.2 affected
2.3 affected
2.4.0 affected
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I. Basic Information for CVE-2026-9567

Vulnerability Information
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Vulnerability Title
GPAC MP4Box isom_intern.c MergeFragment null pointer dereference
Source: CVE Program / CVE List V5
Vulnerability 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
空指针解引用
Source: CVE Program / CVE List V5
Vulnerability Title
GPAC 代码问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
GPAC是GPAC开源的一款开源的多媒体框架。 GPAC 2.4.0及之前版本存在代码问题漏洞，该漏洞源于MP4Box组件中文件src/isomedia/isom_intern.c的MergeFragment函数操作不当，可能导致空指针取消引用。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
- GPAC 2.0 cpe:2.3:a:gpac:gpac:*:*:*:*:*:*:*:*

II. Public POCs for CVE-2026-9567

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III. Intelligence Information for CVE-2026-9567

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Patches & Fixes for CVE-2026-9567 (2)

Other References for CVE-2026-9567 (1)

Same Patch Batch · n/a · 2026-05-26 · 31 CVEs total

CVE-2026-9496 7.5 HIGH pacote 安全漏洞
CVE-2026-9580 7.3 HIGH JeecgBoot selectDepart LoginController.selectDepart access control
CVE-2026-9495 7.3 HIGH @koa/router 安全漏洞
CVE-2026-9581 6.3 MEDIUM JeecgBoot add access control
CVE-2026-9579 6.3 MEDIUM JeecgBoot SysUser userEdit user.getUsername access control
CVE-2026-9541 5.3 MEDIUM Squirrel Cnut File sqobject.cpp ReadObject heap-based overflow
CVE-2026-9568 5.0 MEDIUM ThingsBoard YAML provision getGatewayDockerComposeFile code injection
CVE-2026-9604 4.3 MEDIUM JeecgBoot AiragModelController access control
CVE-2026-9572 3.3 LOW GPAC MP4Box media.c Media_GetSample memory leak
CVE-2026-48689 FastNetMon 缓冲区错误漏洞
CVE-2025-68711 AppLockZ - TrustedApp App Lock and Fingerprint Lock 安全漏洞
CVE-2025-68708 SailingLab AppLock 安全漏洞
CVE-2026-36239 PbootCMS 安全漏洞
CVE-2025-68710 Easyelife App Lock 安全漏洞
CVE-2025-68709 SailingLab AppLock 安全漏洞
CVE-2026-48685 FastNetMon 安全漏洞
CVE-2026-48694 FastNetMon 安全漏洞
CVE-2026-48695 FastNetMon 安全漏洞
CVE-2026-48696 FastNetMon 安全漏洞
CVE-2026-48697 FastNetMon 安全漏洞

Showing top 20 of 31 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: GPAC
Same vendor: n/a
Same weakness: CWE-476

V. Comments for CVE-2026-9567

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