CVE-2026-42481
MEDIUM EPSS 1.0%
Published May 1, 20261mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Published May 1, 2026 1mo ago
Last Modified Jun 17, 2026 1w 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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High
Threat Intelligence
EPSS Exploit Probability
1.0% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-125 Out-of-bounds Read Memory Safety
Affected Products 7
| Vendor | Product | Version | Range |
|---|---|---|---|
| opencascade | open_cascade_technology | * | ≤7.9.3 |
| opencascade | open_cascade_technology | 8.0.0 | any |
| opencascade | open_cascade_technology | 8.0.0 | any |
| opencascade | open_cascade_technology | 8.0.0 | any |
| opencascade | open_cascade_technology | 8.0.0 | any |
| opencascade | open_cascade_technology | 8.0.0 | any |
| opencascade | open_cascade_technology | 8.0.0 | any |
References 1
- gist.github.com https://gist.github.com/sgInnora/dfba083d04906283e9c92aea78e2d94a
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.