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 an out-of-bounds read issue in the VrmlDataIndexedLineSet::TShape function in the VRML parser, as the...

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...

PT-2026-36477

An issue was discovered in VrmlData IndexedFaceSet::TShape in the VRML V2.0 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 malformed VRML input can trigger dereference of a corrupt or unvalidated...

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-2026-36478

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-2026-42476

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-2026-42477

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...

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-2026-42477: Out-of-bounds Read

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...

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...

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 heap-based out-of-bounds read issue in the RWObjReader::read function in the OBJ file parser, as...

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...

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...

EUVD-2026-26677

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...

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...

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...

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...