CVE-2026-42481

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.

CVSS v3 5.5 MEDIUM

5.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 3.6

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://gist.github.com/sgInnora/dfba083d04906283e9c92aea78e2d94a	Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:opencascade:open_cascade_technology::::::::
	cpe:2.3:a:opencascade:open_cascade_technology:8.0.0:beta1::::::
	cpe:2.3:a:opencascade:open_cascade_technology:8.0.0:rc1::::::
	cpe:2.3:a:opencascade:open_cascade_technology:8.0.0:rc2::::::
	cpe:2.3:a:opencascade:open_cascade_technology:8.0.0:rc3::::::
	cpe:2.3:a:opencascade:open_cascade_technology:8.0.0:rc4::::::
	cpe:2.3:a:opencascade:open_cascade_technology:8.0.0:rc5::::::

History

No history.

Information

Published : 2026-05-01 16:16

Updated : 2026-06-17 10:47

NVD link : CVE-2026-42481

Mitre link : CVE-2026-42481

CVE.ORG link : CVE-2026-42481

JSON object : View

Products Affected

opencascade

open_cascade_technology

CWE

CWE-125

Out-of-bounds Read

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