Null Pointer Dereference in GPAC MP4Box Component
CVE-2026-90573

4.8MEDIUM

Key Information:

Vendor

GPAC

Status
Gpac
Vendor
CVE Published:
13 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-90573?

A vulnerability in GPAC's MP4Box component allows for a null pointer dereference due to an issue in the gf_sg_mfurl_del function located in scenegraph/vrml_tools.c. Local access is required to exploit this vulnerability, and public exploits have been made available. Users should upgrade to version abi-16.23 to remediate this issue effectively. The continuous delivery model of the product may complicate version specification, so it's essential to update promptly to the latest patch version, identified by the patch number 49dee5cad329cfed310c1682703df7daa47df31a.

Affected Version(s)

GPAC f1219cde

GPAC abi-16.23

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-90573 - Proof of Concept

References

https://vuldb.com/vuln/403158
vdb-entrytechnical-description
https://vuldb.com/vuln/403158/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-90573
third-party-advisory

CVSS V4

Score:
4.8
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

r1ck9 (VulDB User)
.