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CVE-2021-28096

Estado: ModificadaMedia (5.3)—

An issue was discovered in Stormshield SNS before 4.2.3 (when the proxy is used). An attacker can saturate the proxy connection table. This would result in the proxy denying any new connections.

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)

Stormshield — Stormshield Network Security

CWE

Referencias

JSON original (NVD)

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{
  "id": "CVE-2021-28096",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:N/A:P",
          "authentication": "NONE",
          "integrityImpact": "NONE",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 5.3,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
          "integrityImpact": "NONE",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "LOW",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "NONE"
        },
        "impactScore": 1.4,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "cve@mitre.org",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2022-01-27T14:15:07.847",
  "references": [
    {
      "url": "https://advisories.stormshield.eu/2021-005/",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "cve@mitre.org"
    },
    {
      "url": "https://advisories.stormshield.eu/2021-005/",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-770"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in Stormshield SNS before 4.2.3 (when the proxy is used). An attacker can saturate the proxy connection table. This would result in the proxy denying any new connections."
    },
    {
      "lang": "es",
      "value": "Se ha detectado un problema en Stormshield SNS versiones anteriores a 4.2.3 (cuando es usado el proxy). Un atacante puede saturar la tabla de conexiones del proxy. Esto resultaría en que el proxy denegara cualquier nueva conexión"
    }
  ],
  "lastModified": "2026-06-17T03:45:48.417",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:stormshield:stormshield_network_security:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "296E51A1-0145-4987-8B78-AB6A92E2E969",
              "versionEndIncluding": "2.7.8",
              "versionStartIncluding": "2.0.0"
            },
            {
              "criteria": "cpe:2.3:a:stormshield:stormshield_network_security:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "853771C7-179A-4A4A-BB7D-6F5E9595B4E6",
              "versionEndIncluding": "3.7.20",
              "versionStartIncluding": "3.7.6"
            },
            {
              "criteria": "cpe:2.3:a:stormshield:stormshield_network_security:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "43B343EB-B378-427B-A9F9-5DFF573B0436",
              "versionEndIncluding": "3.11.8",
              "versionStartIncluding": "3.8.0"
            },
            {
              "criteria": "cpe:2.3:a:stormshield:stormshield_network_security:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "804BF818-9B25-41F7-809E-E39DCCE246E7",
              "versionEndExcluding": "4.2.3",
              "versionStartIncluding": "4.0.1"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "cve@mitre.org"
}