CVE-2026-42476
HighSummary
Two heap-based out-of-bounds read vulnerabilities exist in the STL ASCII file parser in Open CASCADE Technology (OCCT) V8_0_0_rc5. These issues arise from improper length validation of buffers before data access, potentially leading to denial of service or information disclosure.
Risk Assessment
User-assisted attackers can exploit these vulnerabilities by persuading a victim to open a crafted STL file, resulting in serious security implications for the organization's data.
Recommendation
It is recommended to update to the latest version of Open CASCADE Technology to mitigate these vulnerabilities and implement additional file validation mechanisms before opening files.
Other vulnerabilities in Open CASCADE Technology (OCCT) V8_0_0_rc5
See all- CVE-2026-42478High
An issue was discovered in the VRML V2.0 parser in Open CASCADE Technology (OCCT) V8_0_0_rc5 that 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 pointer during shape construction.
- CVE-2026-42477High
CVE-2026-42477 describes a heap-based out-of-bounds read vulnerability in the RWObj_Reader::read function in the OBJ file parser in Open CASCADE Technology (OCCT) V8_0_0_rc5. This vulnerability can be exploited by user-assisted attackers persuading a victim to open a crafted OBJ file, potentially leading to denial of service or exposure of sensitive information.
Original NVD description (English source)
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.