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CVE-2021-42686

Estado: ModificadaAlta (8.8)—

An Integer Overflow exists in Accops HyWorks Windows Client prior to v 3.2.8.200. The IOCTL Handler 0x22001B in the Accops HyWorks Windows Client prior to v 3.2.8.200 allow local attackers to execute arbitrary code in kernel mode or cause a denial of service (memory corruption and OS crash) via specially crafted I/O Request Packet.

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)

Accops — Hyworks Windows Client

CWE

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2021-42686",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.2,
          "accessVector": "LOCAL",
          "vectorString": "AV:L/AC:L/Au:N/C:C/I:C/A:C",
          "authentication": "NONE",
          "integrityImpact": "COMPLETE",
          "accessComplexity": "LOW",
          "availabilityImpact": "COMPLETE",
          "confidentialityImpact": "COMPLETE"
        },
        "acInsufInfo": false,
        "impactScore": 10,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 3.9,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "CHANGED",
          "version": "3.1",
          "baseScore": 8.8,
          "attackVector": "LOCAL",
          "baseSeverity": "HIGH",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 6,
        "exploitabilityScore": 2
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2021-12-07T21:15:08.530",
  "references": [
    {
      "url": "https://www.sentinelone.com/labs/usb-over-ethernet-multiple-privilege-escalation-vulnerabilities-in-aws-and-other-major-cloud-services/",
      "tags": [
        "Exploit",
        "Technical Description",
        "Third Party Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://www.sentinelone.com/labs/usb-over-ethernet-multiple-privilege-escalation-vulnerabilities-in-aws-and-other-major-cloud-services/",
      "tags": [
        "Exploit",
        "Technical Description",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-190"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An Integer Overflow exists in Accops HyWorks Windows Client prior to v 3.2.8.200. The IOCTL Handler 0x22001B in the Accops HyWorks Windows Client prior to v 3.2.8.200 allow local attackers to execute arbitrary code in kernel mode or cause a denial of service (memory corruption and OS crash) via specially crafted I/O Request Packet."
    },
    {
      "lang": "es",
      "value": "Se presenta un Desbordamiento de Enteros en Accops HyWorks Windows Client versiones anteriores a 3.2.8.200. IOCTL Handler 0x22001B en Accops HyWorks Windows Client versiones anteriores a 3.2.8.200, permite a atacantes locales ejecutar código arbitrario en modo kernel o causar una denegación de servicio (corrupción de memoria y bloqueo del Sistema Operativo) por medio de un paquete de petición de E/S especialmente diseñado"
    }
  ],
  "lastModified": "2026-06-17T04:09:57.537",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:accops:hyworks_windows_client:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "FC14ABA0-E063-4812-959C-2878FB5062CE",
              "versionEndExcluding": "3.2.8.200"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}