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GPAC MP4Box EUVDEUVD-2026-77146

| CVE-2026-90609 LOW
NULL Pointer Dereference (CWE-476)
2026-09-14 VulDB GHSA-vx8h-pr7x-fx44
Denial Of Service Null Pointer Dereference Gpac N A
1.9
CVSS 4.0 · Vendor: VulDB

Severity by source

Vendor (VulDB) PRIMARY
1.9 MEDIUM
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vuln.today AI
3.3 LOW

Local-only file processing tool; low privilege required to run MP4Box; crash-only impact with no confidentiality or integrity effect.

3.1 AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
4.0 AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Primary rating from Vendor (VulDB).

CVSS VectorVendor: VulDB

Attack Vector
Local
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
X

Lifecycle Timeline

5
Severity Changed
Sep 14, 2026 - 01:22 NVD
MEDIUM LOW
CVSS changed
Sep 14, 2026 - 01:22 NVD
4.8 (MEDIUM) 1.9 (LOW)
Source Code Evidence Fetched
Sep 14, 2026 - 01:00 vuln.today
Analysis Generated
Sep 14, 2026 - 01:00 vuln.today
CVE Published
Sep 14, 2026 - 00:30 cve.org
MEDIUM 4.8

DescriptionCVE.org

A vulnerability has been found in GPAC up to f1219cde. The impacted element is an unknown function of the file scenegraph/vrml_tools.c of the component MP4Box. Such manipulation leads to null pointer dereference. The attack can only be performed from a local environment. The exploit has been disclosed to the public and may be used. Upgrading to version abi-16.23 is sufficient to resolve this issue. The name of the patch is 49dee5cad329cfed310c1682703df7daa47df31a. It is suggested to upgrade the affected component.

AnalysisAI

Null pointer dereference in GPAC MP4Box up to commit f1219cde causes a local denial-of-service when processing crafted VRML/MPEG-4 scenegraph content via the MP4Box tool. The crash originates in scenegraph/vrml_tools.c, specifically in the cyclic traversal flag logic where a node pointer is dereferenced without a NULL guard. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

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Vulnerability AssessmentAI

Exploitation Exploitation requires local system access with at least standard user (low) privileges, and the ability to invoke MP4Box with a crafted input file containing MPEG-4/VRML scenegraph content that triggers a NULL node pointer in the cyclic traversal path. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment The CVSS 4.0 score of 4.8 (AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L) accurately reflects the constrained risk profile: local access is required, the impact is limited to crashing the MP4Box process (VA:L), and there is no confidentiality or integrity impact. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Upgrade GPAC to release abi-16.23 or later; the fix is available at https://github.com/gpac/gpac/releases/tag/abi-16.23 and applied by patch commit 49dee5cad329cfed310c1682703df7daa47df31a. … Detailed patch versions, workarounds, and compensating controls in full report.
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EUVD-2026-77146 vulnerability details – vuln.today
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