Severity by source
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/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
Strictly local attack requiring low-privilege account; no user interaction beyond running MP4Box; limited and symmetric C/I/A impact from heap corruption.
Primary rating from Vendor (VulDB).
CVSS VectorVendor: VulDB
Lifecycle Timeline
5DescriptionCVE.org
A vulnerability was detected in GPAC up to f1219cde. Affected by this vulnerability is the function gf_node_get_field of the file scenegraph/base_scenegraph.c of the component MP4Box. Performing a manipulation results in heap-based buffer overflow. The attack is only possible with local access. The exploit is now public and may be used. Upgrading to version abi-16.23 addresses this issue. The patch is named 49dee5cad329cfed310c1682703df7daa47df31a. The affected component should be upgraded.
AnalysisAI
Heap buffer overflow in GPAC MP4Box's gf_node_get_field() function (scenegraph/base_scenegraph.c) allows local low-privilege attackers to corrupt heap memory by supplying a crafted MP4 file containing malformed MPEG-4 scenegraph data. The root cause, visible in the fix commit, is misaligned field entries across multiple MPEG-4 node struct definitions in nodes_mpeg4.h - specifically GF_ChildNodeItem fields misassigned between struct pairs (OctreeImage/XXParticles, SolidRep/SubdivisionSurface, PointTextureV2/SBVCAnimationV2) - causing gf_node_get_field to compute incorrect byte offsets and write outside intended heap allocations. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a local user account with low privileges on the target system (PR:L per CVSS 4.0 vector AV:L/PR:L). … 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:L/VI:L/VA:L) accurately characterizes this as a moderate, locally-exploitable flaw. … 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 version `abi-16.23` or any later release, which incorporates fix commit 49dee5cad329cfed310c1682703df7daa47df31a. … Detailed patch versions, workarounds, and compensating controls in full report. |
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An exploitable integer overflow vulnerability exists within the MPEG-4 decoding functionality of the GPAC Project on Adv
An exploitable integer overflow vulnerability exists within the MPEG-4 decoding functionality of the GPAC Project on Adv
Same weakness CWE-122 – Heap-based Buffer Overflow
View allSame technique Buffer Overflow
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External POC / Exploit Code
Leaving vuln.today
EUVD-2026-77062
GHSA-xmm7-9m95-97c3