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.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
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Advisories
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Fixes
Solution
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Workaround
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References
History
Fri, 01 May 2026 15:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
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MITRE
Status: PUBLISHED
Assigner: mitre
Published:
Updated: 2026-05-01T14:52:31.457Z
Reserved: 2026-04-27T00:00:00.000Z
Link: CVE-2026-42476
Vulnrichment
No data.
NVD
Status : Awaiting Analysis
Published: 2026-05-01T15:16:43.620
Modified: 2026-05-01T15:37:52.480
Link: CVE-2026-42476
Redhat
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OpenCVE Enrichment
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Weaknesses
No weakness.