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CVE-2021-27480

Estado: ModificadaCrítica (9.8)—

Delta Industrial Automation COMMGR Versions 1.12 and prior are vulnerable to a stack-based buffer overflow, which may allow an attacker to execute remote code.

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)

Deltaww — Industrial Automation Commgr

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-27480",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "ics-cert@hq.dhs.gov",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "Delta Industrial Automation COMMGR",
          "versions": [
            {
              "status": "affected",
              "version": "COMMGR: Version 1.12 and prior"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-04-27T12:15:07.453",
  "references": [
    {
      "url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-110-03",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ],
      "source": "ics-cert@hq.dhs.gov"
    },
    {
      "url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-110-03",
      "tags": [
        "Third Party Advisory",
        "US Government Resource"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "ics-cert@hq.dhs.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-121"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "Delta Industrial Automation COMMGR Versions 1.12 and prior are vulnerable to a stack-based buffer overflow, which may allow an attacker to execute remote code."
    },
    {
      "lang": "es",
      "value": "Delta Industrial Automation COMMGR versiones 1.12 y anteriores, son vulnerables a un desbordamiento de búfer en la región stack de la memoria, lo que puede permitir a un atacante ejecutar código remoto"
    }
  ],
  "lastModified": "2026-06-17T03:44:57.027",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:deltaww:industrial_automation_commgr:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "EC502352-B1C6-4A4F-B3DD-1A58B8C9FF9C",
              "versionEndIncluding": "1.12"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "ics-cert@hq.dhs.gov"
}