CVE-2026-42481

{
  "id": "CVE-2026-42481",
  "sourceIdentifier": "[email protected]",
  "published": "2026-05-01T16:16:32.163",
  "lastModified": "2026-11-08T16:10:00.183",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Open CASCADE Technology (OCCT) V8_0_0_rc5 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 Geom2d_BSplineCurve::EvalD0 during IGES B-spline curve evaluation, an out-of-bounds read in MakeBSplineCurveCommon during STEP B-spline curve construction, and infinite recursion in StepShape_OrientedEdge::EdgeStart when processing a self-referential OrientedEdge entity. Successful exploitation may result in denial of service or unintended memory disclosure."
    },
    {
      "lang": "es",
      "value": "Open CASCADE Technology (OCCT) V8_0_0_rc5 contiene múltiples vulnerabilidades en sus analizadores de archivos IGES y STEP que pueden ser activadas por archivos IGES o STEP manipulados. Estos problemas incluyen una lectura fuera de límites en Geom2d_BSplineCurve::EvalD0 durante la evaluación de curvas B-spline IGES, una lectura fuera de límites en MakeBSplineCurveCommon durante la construcción de curvas B-spline STEP, y recursión infinita en StepShape_OrientedEdge::EdgeStart al procesar una entidad OrientedEdge autorreferencial. La explotación exitosa puede resultar en denegación de servicio o divulgación de memoria no intencionada."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "version": "n/a",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
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        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "attackVector": "LOCAL",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6
      }
    ],
    "ssvcV203": [
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        "ssvcData": {
          "timestamp": "2026-05-01T18:30:09.743152Z",
          "id": "CVE-2026-42481",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
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      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-125"
        }
      ]
    }
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  "references": [
    {
      "url": "https://gist.github.com/sgInnora/dfba083d04906283e9c92aea78e2d94a",
      "source": "[email protected]",
      "tags": [
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}