Vulnerability Details CVE-2026-42479
An out-of-bounds read vulnerability in VrmlData_IndexedLineSet::TShape in the VRML parser in Open CASCADE Technology (OCCT) V8_0_0_rc5 allows attackers to cause a denial of service via a crafted VRML file. The issue occurs because coordIndex values from parsed input are used as direct array indices without validation against the size of the coordinate array during geometry processing.
Exploit prediction scoring system (EPSS) score
CVSS Severity
CVSS v3 Score 5.5
Products affected by CVE-2026-42479
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cpe:2.3:a:opencascade:open_cascade_technology:6.5.0
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cpe:2.3:a:opencascade:open_cascade_technology:6.5.1
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cpe:2.3:a:opencascade:open_cascade_technology:6.5.2
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cpe:2.3:a:opencascade:open_cascade_technology:6.5.3
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cpe:2.3:a:opencascade:open_cascade_technology:6.5.4
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cpe:2.3:a:opencascade:open_cascade_technology:6.5.5
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cpe:2.3:a:opencascade:open_cascade_technology:6.6.0
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cpe:2.3:a:opencascade:open_cascade_technology:6.7.0
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cpe:2.3:a:opencascade:open_cascade_technology:6.7.1
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cpe:2.3:a:opencascade:open_cascade_technology:6.7.2
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cpe:2.3:a:opencascade:open_cascade_technology:6.8.0
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cpe:2.3:a:opencascade:open_cascade_technology:6.9.0
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cpe:2.3:a:opencascade:open_cascade_technology:6.9.1
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cpe:2.3:a:opencascade:open_cascade_technology:7.0.0
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cpe:2.3:a:opencascade:open_cascade_technology:7.0.1
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cpe:2.3:a:opencascade:open_cascade_technology:7.1.0
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cpe:2.3:a:opencascade:open_cascade_technology:7.2.0
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cpe:2.3:a:opencascade:open_cascade_technology:7.3.0
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cpe:2.3:a:opencascade:open_cascade_technology:7.4.0
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cpe:2.3:a:opencascade:open_cascade_technology:7.5.0
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cpe:2.3:a:opencascade:open_cascade_technology:7.5.1
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cpe:2.3:a:opencascade:open_cascade_technology:7.5.2
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cpe:2.3:a:opencascade:open_cascade_technology:7.5.3
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cpe:2.3:a:opencascade:open_cascade_technology:7.6.0
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cpe:2.3:a:opencascade:open_cascade_technology:7.6.1
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cpe:2.3:a:opencascade:open_cascade_technology:7.6.2
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cpe:2.3:a:opencascade:open_cascade_technology:7.6.3
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cpe:2.3:a:opencascade:open_cascade_technology:7.7.0
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cpe:2.3:a:opencascade:open_cascade_technology:7.7.1
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cpe:2.3:a:opencascade:open_cascade_technology:7.7.2
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cpe:2.3:a:opencascade:open_cascade_technology:7.8.0
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cpe:2.3:a:opencascade:open_cascade_technology:7.8.1
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cpe:2.3:a:opencascade:open_cascade_technology:7.9.0
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cpe:2.3:a:opencascade:open_cascade_technology:7.9.1
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cpe:2.3:a:opencascade:open_cascade_technology:7.9.2
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cpe:2.3:a:opencascade:open_cascade_technology:7.9.3
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cpe:2.3:a:opencascade:open_cascade_technology:8.0.0