FKIE_CVE-2024-25728

Vulnerability from fkie_nvd - Published: 2024-02-11 22:15 - Updated: 2026-06-17 07:16
Severity
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Summary
ExpressVPN before 12.73.0 on Windows, when split tunneling is used, sends DNS requests according to the Windows configuration (e.g., sends them to DNS servers operated by the user's ISP instead of to the ExpressVPN DNS servers), which may allow remote attackers to obtain sensitive information about websites visited by VPN users.
References
cve@mitre.orghttps://www.bleepingcomputer.com/news/security/expressvpn-bug-has-been-leaking-some-dns-requests-for-years/Third Party Advisory
cve@mitre.orghttps://www.expressvpn.com/blog/windows-app-dns-requests/Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.bleepingcomputer.com/news/security/expressvpn-bug-has-been-leaking-some-dns-requests-for-years/Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.expressvpn.com/blog/windows-app-dns-requests/Vendor Advisory
Impacted products
Vendor Product Version
expressvpn expressvpn *
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "source": "cve@mitre.org"
    },
    {
      "affectedData": [
        {
          "cpes": [
            "cpe:2.3:a:expressvpn:expressvpn:*:*:*:*:*:*:*:*"
          ],
          "defaultStatus": "unknown",
          "product": "expressvpn",
          "vendor": "expressvpn",
          "versions": [
            {
              "lessThan": "12.73.0",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:expressvpn:expressvpn:*:*:*:*:*:windows:*:*",
              "matchCriteriaId": "4595D351-20E9-40D8-AB7C-32340A0DD8B1",
              "versionEndExcluding": "12.73.0",
              "versionStartIncluding": "12.23.1",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "ExpressVPN before 12.73.0 on Windows, when split tunneling is used, sends DNS requests according to the Windows configuration (e.g., sends them to DNS servers operated by the user\u0027s ISP instead of to the ExpressVPN DNS servers), which may allow remote attackers to obtain sensitive information about websites visited by VPN users."
    },
    {
      "lang": "es",
      "value": "ExpressVPN anterior a 12.73.0 en Windows, cuando se utiliza t\u00fanel dividido, env\u00eda solicitudes DNS de acuerdo con la configuraci\u00f3n de Windows (por ejemplo, las env\u00eda a servidores DNS operados por el ISP del usuario en lugar de a los servidores DNS de ExpressVPN), lo que puede permitir a atacantes remotos obtener informaci\u00f3n confidencial sobre sitios web visitados por usuarios de VPN."
    }
  ],
  "id": "CVE-2024-25728",
  "lastModified": "2026-06-17T07:16:28.697",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      },
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2024-25728",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-10-30T19:09:26.049308Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2024-02-11T22:15:08.360",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.bleepingcomputer.com/news/security/expressvpn-bug-has-been-leaking-some-dns-requests-for-years/"
    },
    {
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.expressvpn.com/blog/windows-app-dns-requests/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.bleepingcomputer.com/news/security/expressvpn-bug-has-been-leaking-some-dns-requests-for-years/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://www.expressvpn.com/blog/windows-app-dns-requests/"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "NVD-CWE-noinfo"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-922"
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "type": "Secondary"
    }
  ]
}



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