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CVE-2026-42477

HIGH CVSS: 7.1 Published: 2026-05-01 Modified: 2026-06-17

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.

Affected Platforms

Opencascade Open Cascade Technology

Weakness Type

CWE-125, CWE-122

References