CVE-2025-59692

{
  "id": "CVE-2025-59692",
  "sourceIdentifier": "[email protected]",
  "published": "2025-09-18T23:15:34.517",
  "lastModified": "2026-10-19T16:10:00.260",
  "vulnStatus": "Deferred",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "PureVPN client applications on Linux through September 2025 mishandle firewalling. They flush the system's existing iptables rules and apply default ACCEPT policies when connecting to a VPN server. This removes firewall rules that may have been configured manually or by other software (e.g., UFW, container engines, or system security policies). Upon VPN disconnect, the original firewall state is not restored. As a result, the system may become unintentionally exposed to network traffic that was previously blocked. This affects CLI 2.0.1 and GUI 2.10.0."
    },
    {
      "lang": "es",
      "value": "Las aplicaciones cliente de PureVPN en Linux hasta septiembre de 2025 gestionan incorrectamente el cortafuegos. Eliminan las reglas iptables existentes del sistema y aplican políticas de ACEPTAR por defecto al conectarse a un servidor VPN. Esto elimina reglas de cortafuegos que pueden haber sido configuradas manualmente o por otro software (por ejemplo, UFW, motores de contenedores, o políticas de seguridad del sistema). Al desconectarse la VPN, el estado original del cortafuegos no se restaura. Como resultado, el sistema puede quedar expuesto involuntariamente al tráfico de red que estaba previamente bloqueado. Esto afecta a CLI 2.0.1 y GUI 2.10.0."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "PureVPN",
          "product": "PureVPN",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "CLI 2.0.1",
              "versionType": "custom",
              "status": "affected"
            },
            {
              "version": "GUI 2.10.0",
              "versionType": "custom",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N",
          "baseScore": 3.7,
          "baseSeverity": "LOW",
          "attackVector": "NETWORK",
          "attackComplexity": "HIGH",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 1.4
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2025-09-19T13:08:24.214138Z",
          "id": "CVE-2025-59692",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-669"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://anagogistis.com/posts/purevpn-ipv6-leak/",
      "source": "[email protected]"
    }
  ]
}