CVE-2026-42477
Full vulnerability record from the local CVENow database.
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.
Severity
HIGH
CVSS score
7.1
(v3.1)
Vulnerability status
Modified
Source identifier
Published
2026-05-01 15:16:43.737000
Last modified
2026-11-08 16:10:00.183000
View original CVE JSON
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"id": "CVE-2026-42477",
"sourceIdentifier": "[email protected]",
"published": "2026-05-01T15:16:43.737",
"lastModified": "2026-11-08T16:10:00.183",
"vulnStatus": "Modified",
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},
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"lang": "es",
"value": "Una vulnerabilidad de lectura fuera de límites basada en el montón en RWObj_Reader::read en el analizador de archivos OBJ en Open CASCADE Technology (OCCT) V8_0_0_rc5 permite a atacantes asistidos por el usuario causar una denegación de servicio u obtener información sensible al persuadir a una víctima para abrir un archivo OBJ manipulado. El problema ocurre porque Standard_ReadLineBuffer::ReadLine() puede devolver un búfer de 1 byte para una línea OBJ mínima, y RWObj_Reader::read() llama a pushIndices(aLine + 2) sin validar la longitud del búfer."
}
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"affected": [
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"source": "[email protected]",
"affectedData": [
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