CVE-2026-42477
7.1 · HIGHOverview
CVE-2026-42477 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
A heap-based out-of-bounds read vulnerability in RWObj_Reader::read in the OBJ file parser in Open CASCADE Technology (OCCT) V8_0_0_rc5 allows user-assisted attackers to cause a denial of service or obtain sensitive information by persuading a victim to open a crafted OBJ file. The issue occurs because Standard_ReadLineBuffer::ReadLine() can return a 1-byte buffer for a minimal OBJ line, and RWObj_Reader::read() calls pushIndices(aLine + 2) without validating the buffer length.
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-2026-42477?
CVE-2026-42477 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-2026-42477?
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-2026-42477?
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-2026-42477?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-42477 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.
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