Open Cascade OCCT 缓冲区错误漏洞

Open Cascade OCCT is a 3D modeling and geometry computation kernel from the French company Open Cascade. A buffer error vulnerability exists in Open Cascade OCCT version V800rc5, which stems from a stack-based out-of-bounds read issue in the VrmlDataScene::ReadLine function in the VRML parser, as...

CVE-2026-42477

A heap-based out-of-bounds read vulnerability in RWObjReader::read in the OBJ file parser in Open CASCADE Technology OCCT V800rc5 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...

CVE-2026-42479

An out-of-bounds read vulnerability in VrmlDataIndexedLineSet::TShape in the VRML parser in Open CASCADE Technology OCCT V800rc5 allows attackers to cause a denial of service via a crafted VRML file. The issue occurs because coordIndex values from parsed input are used as direct array indices...

PT-2026-36476

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...

PT-2026-36475

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...

CVE-2026-42477

A heap-based out-of-bounds read vulnerability in RWObjReader::read in the OBJ file parser in Open CASCADE Technology OCCT V800rc5 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...

CVE-2026-42478

An issue was discovered in VrmlDataIndexedFaceSet::TShape in the VRML V2.0 parser in Open CASCADE Technology OCCT V800rc5 allows attackers to cause a denial of service via a crafted VRML file. The issue occurs because malformed VRML input can trigger dereference of a corrupt or unvalidated pointe...

CVE-2026-42478

An issue was discovered in VrmlDataIndexedFaceSet::TShape in the VRML V2.0 parser in Open CASCADE Technology OCCT V800rc5 allows attackers to cause a denial of service via a crafted VRML file. The issue occurs because malformed VRML input can trigger dereference of a corrupt or unvalidated pointe...

CVE-2026-42479

An out-of-bounds read vulnerability in VrmlDataIndexedLineSet::TShape in the VRML parser in Open CASCADE Technology OCCT V800rc5 allows attackers to cause a denial of service via a crafted VRML file. The issue occurs because coordIndex values from parsed input are used as direct array indices...