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CVE-2026-42481 - Open CASCADE Technology (OCCT) Geometry Library IGES/STEP File Parsing vulnerabilities

CVE ID :CVE-2026-42481
Published : May 1, 2026, 4:16 p.m. | 1 hour, 58 minutes ago
Description :Open CASCADE Technology (OCCT) V8_0_0_rc5 contains multiple vulnerabilities in its IGES and STEP file parsers that can be triggered by crafted IGES or STEP files. These issues include an out-of-bounds read in Geom2d_BSplineCurve::EvalD0 during IGES B-spline curve evaluation, an out-of-bounds read in MakeBSplineCurveCommon during STEP B-spline curve construction, and infinite recursion in StepShape_OrientedEdge::EdgeStart when processing a self-referential OrientedEdge entity. Successful exploitation may result in denial of service or unintended memory disclosure.
Severity: 0.0 | NA
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