PT-2026-36478

An out-of-bounds read vulnerability in VrmlData IndexedLineSet::TShape in the VRML parser in Open CASCADE Technology OCCT V8 0 0 rc5 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...

CVE-2026-42479: Out-of-bounds Read

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...

CVE-2026-42476: Out-of-bounds Read

Two heap-based out-of-bounds read vulnerabilities in the STL ASCII file parser in Open CASCADE Technology OCCT V800rc5 exist in RWStlReader::ReadAscii because buffers returned by StandardReadLineBuffer::ReadLine are not properly length-validated before strncasecmp or direct byte access...

CVE-2026-42481

Open CASCADE Technology OCCT V800rc5 contains multiple vulnerabilities in its IGES and STEP file parsers that can be triggered by crafted IGES or STEP files. These issues include an out-of-bounds read in Geom2dBSplineCurve::EvalD0 during IGES B-spline curve evaluation, an out-of-bounds read in...

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-2026-42476

Two heap-based out-of-bounds read vulnerabilities in the STL ASCII file parser in Open CASCADE Technology OCCT V800rc5 exist in RWStlReader::ReadAscii because buffers returned by StandardReadLineBuffer::ReadLine are not properly length-validated before strncasecmp or direct byte access...

EUVD-2026-26599

Two heap-based out-of-bounds read vulnerabilities in the STL ASCII file parser in Open CASCADE Technology OCCT V800rc5 exist in RWStlReader::ReadAscii because buffers returned by StandardReadLineBuffer::ReadLine are not properly length-validated before strncasecmp or direct byte access...

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 multiple issues with the IGES and STEP file parsers, including an out-of-bounds read of...

CVE-2026-42476

Two heap-based out-of-bounds read vulnerabilities affect Open CASCADE Technology (OCCT) V8_0_0_rc5 in the STL ASCII file parser (RWStl_Reader::ReadAscii). In CTL: buffers returned by Standard_ReadLineBuffer::ReadLine() are not properly length-validated before strncasecmp or direct byte access, en...

CVE-2026-42481

Open CASCADE Technology OCCT V800rc5 contains multiple vulnerabilities in its IGES and STEP file parsers that can be triggered by crafted IGES or STEP files. These issues include an out-of-bounds read in Geom2dBSplineCurve::EvalD0 during IGES B-spline curve evaluation, an out-of-bounds read in...

CVE-2026-42476

Two heap-based out-of-bounds read vulnerabilities in the STL ASCII file parser in Open CASCADE Technology OCCT V800rc5 exist in RWStlReader::ReadAscii because buffers returned by StandardReadLineBuffer::ReadLine are not properly length-validated before strncasecmp or direct byte access...

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...

CVE-2026-42480

A stack-based out-of-bounds read vulnerability in VrmlDataScene::ReadLine 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 the quoted-string escape handler uses ptr++anOffset without proper...

CVE-2026-42478: NULL Pointer Dereference

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...

EUVD-2026-26602

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...

EUVD-2026-26601

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-2026-42477

The CVE describes a heap-based out-of-bounds read in Open CASCADE Technology (OCCT) v8_0_0_rc5 within the OBJ file parser. The vulnerability affects RWObj_Reader::read, caused by Standard_ReadLineBuffer::ReadLine() returning a 1-byte buffer for minimal OBJ lines and RWObj_Reader::read() calling p...

EUVD-2026-26600

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...

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 two heap-based out-of-bounds reads in the RWStlReader::ReadAscii function in the STL ASCII file parse...

CVE-2026-42479

CVE-2026-42479 affects Open CASCADE Technology (OCCT) version V8_0_0_rc5. The VrmlData_IndexedLineSet::TShape in the VRML parser uses coordIndex values from input as direct array indices without validating against the coordinate array size during geometry processing, leading to an out-of-bounds r...