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CVE-2020-5801

Estado: ModificadaAlta (7.5)—

An attacker can craft and send an OpenNamespace message to port 4241 with valid session-id that triggers an unhandled exception in CFTLDManager::HandleRequest function in RnaDaSvr.dll, resulting in process termination. Observed in FactoryTalk Linx 6.11. All versions of FactoryTalk Linx are affected.

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 (1)

Rockwellautomation — Factorytalk Linx

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2020-5801",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 7.5,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "vulnreport@tenable.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "Rockwell FactoryTalk Linx",
          "versions": [
            {
              "status": "affected",
              "version": "All versions of FactoryTalk Linx"
            }
          ]
        }
      ]
    }
  ],
  "published": "2020-12-29T16:15:14.730",
  "references": [
    {
      "url": "https://www.tenable.com/security/research/tra-2020-71",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "vulnreport@tenable.com"
    },
    {
      "url": "https://www.tenable.com/security/research/tra-2020-71",
      "tags": [
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-755"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An attacker can craft and send an OpenNamespace message to port 4241 with valid session-id that triggers an unhandled exception in CFTLDManager::HandleRequest function in RnaDaSvr.dll, resulting in process termination. Observed in FactoryTalk Linx 6.11. All versions of FactoryTalk Linx are affected."
    },
    {
      "lang": "es",
      "value": "Un atacante puede crear y enviar un mensaje OpenNamespace al puerto 4241 con un ID de sesión válido que desencadena una excepción no controlada en la función CFTLDManager::HandleRequest en la biblioteca RnaDaSvr.dll, resultando en una terminación del proceso. Observado en FactoryTalk Linx versión 6.11. Todas las versiones de FactoryTalk Linx están afectadas"
    }
  ],
  "lastModified": "2026-06-17T03:22:15.710",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:rockwellautomation:factorytalk_linx:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "89622117-4485-4204-A5DA-B72F7F13D353",
              "versionEndIncluding": "6.11"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "vulnreport@tenable.com"
}