FKIE_CVE-2025-13751

Vulnerability from fkie_nvd - Published: 2025-12-03 17:15 - Updated: 2026-06-17 08:34
Severity
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
Interactive service agent in OpenVPN version 2.5.0 through 2.6.16 and 2.7_alpha1 through 2.7_rc2 on Windows allows a local authenticated user to connect to the service and trigger an error causing a local denial of service.
References
security@openvpn.nethttps://community.openvpn.net/Security%20Announcements/CVE-2025-13751Vendor Advisory
security@openvpn.nethttps://www.mail-archive.com/openvpn-announce@lists.sourceforge.net/msg00153.htmlMailing List, Release Notes
security@openvpn.nethttps://www.mail-archive.com/openvpn-announce@lists.sourceforge.net/msg00154.htmlMailing List, Release Notes
Impacted products
Vendor Product Version
openvpn openvpn *
openvpn openvpn 2.7
openvpn openvpn 2.7
openvpn openvpn 2.7
openvpn openvpn 2.7
openvpn openvpn 2.7
openvpn openvpn 2.7
openvpn openvpn 2.7
openvpn openvpn 2.7
microsoft windows -
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{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "platforms": [
            "Windows"
          ],
          "product": "OpenVPN",
          "vendor": "OpenVPN",
          "versions": [
            {
              "lessThanOrEqual": "2.6.16",
              "status": "affected",
              "version": "2.5.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "2.7_rc2",
              "status": "affected",
              "version": "2.7_alpha1",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "security@openvpn.net"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:openvpn:openvpn:*:*:*:*:community:*:*:*",
              "matchCriteriaId": "0F6E3F9D-3543-4646-B95E-B4474BEF106C",
              "versionEndExcluding": "2.6.17",
              "versionStartIncluding": "2.5.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:openvpn:openvpn:2.7:alpha1:*:*:community:*:*:*",
              "matchCriteriaId": "474A2F74-9D40-437D-B71A-43A8A26C2A55",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:openvpn:openvpn:2.7:alpha2:*:*:community:*:*:*",
              "matchCriteriaId": "1F5B810E-3614-4332-9281-B2AA28BD9403",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:openvpn:openvpn:2.7:alpha3:*:*:community:*:*:*",
              "matchCriteriaId": "2A423301-191A-4578-B824-22024A225C1C",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:openvpn:openvpn:2.7:beta1:*:*:community:*:*:*",
              "matchCriteriaId": "537BC1B1-7E25-48A0-9750-443E6774FD97",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:openvpn:openvpn:2.7:beta2:*:*:community:*:*:*",
              "matchCriteriaId": "387E2C7F-C16A-49FA-827B-642BA760320D",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:openvpn:openvpn:2.7:beta3:*:*:community:*:*:*",
              "matchCriteriaId": "183C57B8-5F1E-44E8-8B8A-5FBCDB926F21",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:openvpn:openvpn:2.7:rc1:*:*:community:*:*:*",
              "matchCriteriaId": "113A4E81-FF15-4E70-8DE5-E82AA3FB1D79",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:openvpn:openvpn:2.7:rc2:*:*:community:*:*:*",
              "matchCriteriaId": "3FFF4F7C-C7C9-451C-A4FB-701E912DA2C5",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        },
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "A2572D17-1DE6-457B-99CC-64AFD54487EA",
              "vulnerable": false
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ],
      "operator": "AND"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Interactive service agent in OpenVPN version 2.5.0 through 2.6.16 and 2.7_alpha1 through 2.7_rc2 on Windows allows a local authenticated user to connect to the service and trigger an error causing a local denial of service."
    },
    {
      "lang": "es",
      "value": "El agente de servicio interactivo en OpenVPN desde la versi\u00f3n 2.5.0 hasta la 2.7_rc2 en Windows permite a un usuario local autenticado conectarse al servicio y desencadenar un error, causando una denegaci\u00f3n de servicio local."
    }
  ],
  "id": "CVE-2025-13751",
  "lastModified": "2026-06-17T08:34:41.610",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ],
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "PRESENT",
          "attackVector": "LOCAL",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 1.3,
          "baseSeverity": "LOW",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "UNREPORTED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "LOW",
          "providerUrgency": "CLEAR",
          "subAvailabilityImpact": "HIGH",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "PASSIVE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Clear",
          "version": "4.0",
          "vulnAvailabilityImpact": "HIGH",
          "vulnConfidentialityImpact": "NONE",
          "vulnIntegrityImpact": "NONE",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
        },
        "source": "security@openvpn.net",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-13751",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-12-03T16:32:17.086600Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-12-03T17:15:49.913",
  "references": [
    {
      "source": "security@openvpn.net",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://community.openvpn.net/Security%20Announcements/CVE-2025-13751"
    },
    {
      "source": "security@openvpn.net",
      "tags": [
        "Mailing List",
        "Release Notes"
      ],
      "url": "https://www.mail-archive.com/openvpn-announce@lists.sourceforge.net/msg00153.html"
    },
    {
      "source": "security@openvpn.net",
      "tags": [
        "Mailing List",
        "Release Notes"
      ],
      "url": "https://www.mail-archive.com/openvpn-announce@lists.sourceforge.net/msg00154.html"
    }
  ],
  "sourceIdentifier": "security@openvpn.net",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-770"
        },
        {
          "lang": "en",
          "value": "CWE-775"
        },
        {
          "lang": "en",
          "value": "CWE-841"
        }
      ],
      "source": "security@openvpn.net",
      "type": "Secondary"
    }
  ]
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
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  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.