CVE-2026-42476
7.1 · HIGHOverview
CVE-2026-42476 is a high-severity vulnerability affecting opencascade open_cascade_technology. It was published on May 1, 2026 and has a CVSS 3.1 base score of 7.1 (HIGH).
This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
Technical Description
Two heap-based out-of-bounds read vulnerabilities in the STL ASCII file parser in Open CASCADE Technology (OCCT) V8_0_0_rc5 exist in RWStl_Reader::ReadAscii because buffers returned by Standard_ReadLineBuffer::ReadLine() are not properly length-validated before strncasecmp or direct byte access. User-assisted attackers can trigger these issues by persuading a victim to open a crafted STL file with extremely short lines, resulting in a denial of service or possible information disclosure.
Remediation
Check the references section for vendor advisories and patches from opencascade. Update open_cascade_technology to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| opencascade | open_cascade_technology | 0 | Affected |
Frequently Asked Questions
What is CVE-2026-42476?
CVE-2026-42476 is a high-severity vulnerability affecting opencascade open_cascade_technology. It was published on May 1, 2026 and has a CVSS 3.1 base score of 7.1 (HIGH).
How severe is CVE-2026-42476?
This vulnerability has a CVSS 3.1 base score of 7.1, rated HIGH. It requires local or adjacent network access to exploit. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2026-42476?
Check the references section for vendor advisories and patches from opencascade. Update open_cascade_technology to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-42476?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-42476 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
How CyberStrike Helps
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