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CVE-2021-27232

Estado: ModificadaAlta (8.8)—

The RTSPLive555.dll ActiveX control in Pelco Digital Sentry Server 7.18.72.11464 has a SetCameraConnectionParameter stack-based buffer overflow. This can be exploited by a remote attacker to potentially execute arbitrary attacker-supplied code. The victim would have to visit a malicious webpage using Internet Explorer where the exploit could be triggered.

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)

Pelco — Digital Sentry Server

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-27232",
  "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": 8.8,
          "attackVector": "NETWORK",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:N/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": 2.8
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-02-16T15:15:13.647",
  "references": [
    {
      "url": "https://github.com/vitorespf/Advisories/blob/master/Pelco_Digital_Sentry_Server-RSTPLive555%20Activex%20Buffer%20overflow.txt",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://support.pelco.com/s/article/What-is-the-Digital-Sentry-software-release-revision-history",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://github.com/vitorespf/Advisories/blob/master/Pelco_Digital_Sentry_Server-RSTPLive555%20Activex%20Buffer%20overflow.txt",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://support.pelco.com/s/article/What-is-the-Digital-Sentry-software-release-revision-history",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-787"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The RTSPLive555.dll ActiveX control in Pelco Digital Sentry Server 7.18.72.11464 has a SetCameraConnectionParameter stack-based buffer overflow. This can be exploited by a remote attacker to potentially execute arbitrary attacker-supplied code. The victim would have to visit a malicious webpage using Internet Explorer where the exploit could be triggered."
    },
    {
      "lang": "es",
      "value": "El control ActiveX RTSPLive555.dll en Pelco Digital Sentry Server versión 7.18.72.11464, presenta un desbordamiento del búfer en la región stack de la memoria en la función SetCameraConnectionParameter. Esto puede ser explotado por un atacante remoto para ejecutar potencialmente código arbitrario suministrado por el atacante. La víctima tendría que visitar una página web maliciosa usando Internet Explorer donde se podría desencadenar el exploit"
    }
  ],
  "lastModified": "2026-06-17T03:44:30.773",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:pelco:digital_sentry_server:7.18.72.11464:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "84039097-D4AD-40FC-B43A-17CEC8286EE2"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}