# Opencascade Open Cascade Technology vulnerabilities

Source: https://junglewise.ai/threats/technologies/open-cascade-technology  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 12 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/open-cascade-technology.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 3 vulnerabilities in Opencascade Open Cascade Technology: 0 in the last 7 days and 0 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-42481, was published on 1 May 2026.

## Counts

- Last 7 days: 0
- Last 30 days: 0
- Last 90 days: 0
- All time: 3 (0 critical, 0 exploited in the wild)

## About Opencascade Open Cascade Technology

Open CASCADE Technology is a 3D modeling and CAD geometry kernel library written in C++.

## Latest Opencascade Open Cascade Technology vulnerabilities

- [CVE-2026-42481: Open CASCADE Technology OOB read and recursion in IGES and STEP parsers](https://junglewise.ai/threats/cve-2026-42481-open-cascade-technology-oob-read-and-recursion-in-iges-and-step) (medium, CVSS 5.5, published 1 May 2026)
- [CVE-2026-42479: An out-of-bounds read vulnerability in VrmlData_IndexedLineSet::TShape in the VRML parser in Open CASCADE Technology…](https://junglewise.ai/threats/cve-2026-42479-an-out-of-bounds-read-vulnerability-in-vrmldata-indexedlineset) (medium, CVSS 5.5, published 1 May 2026)
- [CVE-2026-42476: Two heap-based out-of-bounds read vulnerabilities in the STL ASCII file parser in Open CASCADE Technology (OCCT)…](https://junglewise.ai/threats/cve-2026-42476-two-heap-based-out-of-bounds-read-vulnerabilities-in-the-stl) (high, CVSS 7.1, published 1 May 2026)

## Most severe Opencascade Open Cascade Technology vulnerabilities

- [CVE-2026-42476: Two heap-based out-of-bounds read vulnerabilities in the STL ASCII file parser in Open CASCADE Technology (OCCT)…](https://junglewise.ai/threats/cve-2026-42476-two-heap-based-out-of-bounds-read-vulnerabilities-in-the-stl) (high, CVSS 7.1, published 1 May 2026)
- [CVE-2026-42479: An out-of-bounds read vulnerability in VrmlData_IndexedLineSet::TShape in the VRML parser in Open CASCADE Technology…](https://junglewise.ai/threats/cve-2026-42479-an-out-of-bounds-read-vulnerability-in-vrmldata-indexedlineset) (medium, CVSS 5.5, published 1 May 2026)
- [CVE-2026-42481: Open CASCADE Technology OOB read and recursion in IGES and STEP parsers](https://junglewise.ai/threats/cve-2026-42481-open-cascade-technology-oob-read-and-recursion-in-iges-and-step) (medium, CVSS 5.5, published 1 May 2026)

## Vulnerabilities per week

Nothing was published in the last eight weeks.

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 0 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 0 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Opencascade Open Cascade Technology vulnerabilities", https://junglewise.ai/threats/technologies/open-cascade-technology, 12 November 2026.