EUVD-2026-33523
GHSA-6jj7-xf98-rxhg
Severity by source
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
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
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
Lifecycle Timeline
1DescriptionCVE.org
A vulnerability was determined in Assimp up to 6.0.4. This vulnerability affects the function FBXExporter::WriteObjects of the file FBXExporter.cpp of the component UV Channel Handler. Executing a manipulation can lead to divide by zero. The attack needs to be launched locally. The exploit has been publicly disclosed and may be utilized. Applying a patch is advised to resolve this issue. The project tagged the reported issue as bug.
AnalysisAI
Divide-by-zero in Assimp's FBXExporter (UV Channel Handler) up to version 6.0.4 crashes the application when processing maliciously crafted UV channel data during FBX export, resulting in a local denial-of-service condition. An authenticated local user with low privileges can trigger the crash by supplying crafted input to the FBXExporter::WriteObjects function in FBXExporter.cpp. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires local system access with at minimum low-privileged credentials, as confirmed by the 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 base score of 1.9 accurately reflects the narrow real-world risk: AV:L (local-only attack, no network exposure), PR:L (low-privileged access required), VA:L (availability impact limited to the vulnerable component), and VC:N/VI:N (no confidentiality or integrity impact). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | A local attacker with low-privileged access to a workstation or build server running an Assimp-based 3D asset pipeline crafts a malicious FBX file containing a UV channel configuration with a zero-value denominator and submits it for export processing. When FBXExporter::WriteObjects processes the UV channel data, the unguarded division by zero occurs, crashing the host application and denying service to legitimate users or automated pipeline jobs. … |
| Remediation | The Assimp project has been advised to apply a patch per the CVE description, but a specific patched release version is not confirmed in the available data - upstream fix available (PR/commit via GitHub issue #6613); released patched version not independently confirmed. … Detailed patch versions, workarounds, and compensating controls in full report. |
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