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CVE-2021-44449

Estado: ModificadaAlta (7.8)—

A vulnerability has been identified in JT Utilities (All versions < V12.8.1.1), JTTK (All versions < V10.8.1.1). JTTK library in affected products contains an out of bounds write past the end of an allocated structure while parsing specially crafted JT files. This could allow an attacker to execute code in the context of the current process. (ZDI-CAN-14830)

CVSS

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (2)

Siemens — JT Open ToolkitSiemens — JT Utilities

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-44449",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 6.8,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": true
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "REQUIRED",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 1.8
      }
    ]
  },
  "affected": [
    {
      "source": "productcert@siemens.com",
      "affectedData": [
        {
          "vendor": "Siemens",
          "product": "JT Utilities",
          "versions": [
            {
              "status": "affected",
              "version": "All versions <  V12.8.1.1"
            }
          ]
        },
        {
          "vendor": "Siemens",
          "product": "JTTK",
          "versions": [
            {
              "status": "affected",
              "version": "All versions <  V10.8.1.1"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-12-14T12:15:11.923",
  "references": [
    {
      "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-396621.pdf",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "productcert@siemens.com"
    },
    {
      "url": "https://cert-portal.siemens.com/productcert/pdf/ssa-396621.pdf",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "productcert@siemens.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability has been identified in JT Utilities (All versions < V12.8.1.1), JTTK (All versions < V10.8.1.1). JTTK library in affected products contains an out of bounds write past the end of an allocated structure while parsing specially crafted JT files. This could allow an attacker to execute code in the context of the current process. (ZDI-CAN-14830)"
    },
    {
      "lang": "es",
      "value": "Se ha identificado una vulnerabilidad en JT Utilities (Todas las versiones anteriores a V12.8.1.1), JTTK (Todas las versiones anteriores a V10.8.1.1). La biblioteca JTTK en los productos afectados contiene una escritura fuera de límites más allá del final de una estructura asignada mientras son analizados archivos JT especialmente diseñados. Esto podría permitir a un atacante ejecutar código en el contexto del proceso actual. (ZDI-CAN-14830)"
    }
  ],
  "lastModified": "2026-06-17T04:12:22.053",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:siemens:jt_open_toolkit:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "5CE4842F-9F43-41F2-875F-26B566DFD6EE",
              "versionEndExcluding": "10.8.1.1"
            },
            {
              "criteria": "cpe:2.3:a:siemens:jt_utilities:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "E38EF007-73C8-4B65-AC4B-73E6F8E979EF",
              "versionEndExcluding": "12.8.1.1"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "productcert@siemens.com"
}