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.
References
| Link | Resource |
|---|---|
| https://gist.github.com/sgInnora/dfba083d04906283e9c92aea78e2d94a | Third Party Advisory |
Configurations
Configuration 1 (hide)
|
History
01 Jun 2026, 17:08
| Type | Values Removed | Values Added |
|---|---|---|
| References | () https://gist.github.com/sgInnora/dfba083d04906283e9c92aea78e2d94a - Third Party Advisory | |
| First Time |
Opencascade
Opencascade open Cascade Technology |
|
| CPE | cpe:2.3:a:opencascade:open_cascade_technology:8.0.0:rc3:*:*:*:*:*:* cpe:2.3:a:opencascade:open_cascade_technology:8.0.0:rc5:*:*:*:*:*:* cpe:2.3:a:opencascade:open_cascade_technology:8.0.0:rc2:*:*:*:*:*:* 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:rc4:*:*:*:*:*:* cpe:2.3:a:opencascade:open_cascade_technology:8.0.0:rc1:*:*:*:*:*:* |
01 May 2026, 19:16
| Type | Values Removed | Values Added |
|---|---|---|
| CWE | CWE-125 | |
| CVSS |
v2 : v3 : |
v2 : unknown
v3 : 5.5 |
01 May 2026, 16:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-05-01 16:16
Updated : 2026-06-01 17:08
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