CVE-2026-42476

HIGH

7.1

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.

CVE Details

CVSS v3.1 Score7.1

SeverityHIGH

CVSS VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:H

Attack VectorLOCAL

ComplexityLOW

Privileges RequiredNONE

User InteractionREQUIRED

Published5/1/2026

Last Modified5/1/2026

Sourcenvd

Honeypot Sightings0

Affected Products

opencascade:open_cascade_technology

Weaknesses (CWE)

CWE-125CWE-125

References

https://gist.github.com/sgInnora/dfba083d04906283e9c92aea78e2d94a(cve@mitre.org)

IOC Correlations

No correlations recorded

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