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CVE-2023-22325

Estado: ModificadaMedia (5.9)—

A denial of service vulnerability exists in the DCRegister DDNS_RPC_MAX_RECV_SIZE functionality of SoftEther VPN 4.41-9782-beta, 5.01.9674 and 5.02. A specially crafted network packet can lead to denial of service. An attacker can perform a man-in-the-middle attack to trigger this vulnerability.

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)

Softether — VPN

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2023-22325",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2023-22325",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2024-07-31T20:32:28.975799Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "talos-cna@cisco.com",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.9,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.2
      },
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.9,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "HIGH",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 3.6,
        "exploitabilityScore": 2.2
      }
    ]
  },
  "affected": [
    {
      "source": "talos-cna@cisco.com",
      "affectedData": [
        {
          "vendor": "SoftEther VPN",
          "product": "SoftEther VPN",
          "versions": [
            {
              "status": "affected",
              "version": "4.41-9782-beta"
            },
            {
              "status": "affected",
              "version": "5.01.9674"
            },
            {
              "status": "affected",
              "version": "5.02"
            }
          ]
        }
      ]
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:softether:vpn:4.41-9782:beta:*:*:*:*:*:*"
          ],
          "vendor": "softether",
          "product": "vpn",
          "versions": [
            {
              "status": "affected",
              "version": "4.41-9782"
            }
          ],
          "defaultStatus": "unknown"
        },
        {
          "cpes": [
            "cpe:2.3:a:softether:vpn:5.01.9674:*:*:*:*:*:*:*"
          ],
          "vendor": "softether",
          "product": "vpn",
          "versions": [
            {
              "status": "affected",
              "version": "5.01.9674"
            }
          ],
          "defaultStatus": "unknown"
        },
        {
          "cpes": [
            "cpe:2.3:a:softether:vpn:5.02:*:*:*:*:*:*:*"
          ],
          "vendor": "softether",
          "product": "vpn",
          "versions": [
            {
              "status": "affected",
              "version": "5.02"
            }
          ],
          "defaultStatus": "unknown"
        }
      ]
    }
  ],
  "published": "2023-10-12T16:15:10.283",
  "references": [
    {
      "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2023-1736",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "talos-cna@cisco.com"
    },
    {
      "url": "https://www.softether.org/9-about/News/904-SEVPN202301",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "talos-cna@cisco.com"
    },
    {
      "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2023-1736",
      "tags": [
        "Exploit",
        "Third Party Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.softether.org/9-about/News/904-SEVPN202301",
      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1736",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "talos-cna@cisco.com",
      "description": [
        {
          "lang": "en",
          "value": "CWE-835"
        }
      ]
    },
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-835"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "A denial of service vulnerability exists in the DCRegister DDNS_RPC_MAX_RECV_SIZE functionality of SoftEther VPN 4.41-9782-beta, 5.01.9674 and 5.02. A specially crafted network packet can lead to denial of service. An attacker can perform a man-in-the-middle attack to trigger this vulnerability."
    },
    {
      "lang": "es",
      "value": "Existe una vulnerabilidad de denegación de servicio en la funcionalidad DCRegister DDNS_RPC_MAX_RECV_SIZE de SoftEther VPN 4.41-9782-beta, 5.01.9674 y 5.02. Un paquete de red especialmente manipulado puede provocar una Denegación de Servicio (DoS). Un atacante puede realizar un ataque de intermediario para desencadenar esta vulnerabilidad."
    }
  ],
  "lastModified": "2026-06-17T05:35:03.150",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:softether:vpn:4.41-9782:beta:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "79C47EE5-1B55-4FDD-A5B5-E10FF3337100"
            },
            {
              "criteria": "cpe:2.3:a:softether:vpn:5.01.9674:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "5CF5CF13-B22F-494B-BDC0-B59371979251"
            },
            {
              "criteria": "cpe:2.3:a:softether:vpn:5.02:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "D21F370B-D9F2-43E8-8E45-0EA74A3C9D4B"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "talos-cna@cisco.com"
}