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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
{
  "id": "CVE-2026-42477",
  "sourceIdentifier": "[email protected]",
  "published": "2026-05-01T15:16:43.737",
  "lastModified": "2026-11-08T16:10:00.183",
  "vulnStatus": "Modified",
  "cveTags": [],
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      "value": "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."
    },
    {
      "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."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
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          "product": "n/a",
          "versions": [
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      "url": "https://gist.github.com/sgInnora/dfba083d04906283e9c92aea78e2d94a",
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}