{
  "document": {
    "category": "csaf_vex",
    "csaf_version": "2.0",
    "lang": "en-US",
    "publisher": {
      "category": "coordinator",
      "contact_details": "https://www.cisa.gov/report",
      "issuing_authority": "CISA",
      "name": "CISA",
      "namespace": "https://www.cisa.gov/"
    },
    "title": "Windscribe for Linux 'changeMTU' local privilege escalation",
    "tracking": {
      "current_release_date": "2025-12-10T16:46:41Z",
      "generator": {
        "engine": {
          "name": "VINCE-NT",
          "version": "1.11.0"
        }
      },
      "id": "VA-25-343-01",
      "initial_release_date": "2025-12-10T16:46:41Z",
      "status": "final",
      "version": "1.0.0",
      "revision_history": [
        {
          "number": "1.0.0",
          "summary": "Initial publication",
          "date": "2025-12-10T16:46:41Z"
        }
      ]
    },
    "distribution": {
      "tlp": {
        "label": "WHITE"
      }
    },
    "notes": [
      {
        "text": "All information products included in [https://github.com/cisagov/CSAF/tree/develop/csaf_files/IT/white](https://github.com/cisagov/CSAF/tree/develop/csaf_files/IT/white) are provided \\\"as is\\\" for informational purposes only. The Department of Homeland Security (DHS) does not provide any warranties of any kind regarding any information contained within. DHS does not endorse any commercial product or service, referenced in this product or otherwise. Further dissemination of this product is governed by the Traffic Light Protocol (TLP) marking in the header. For more information about TLP, see [https://us-cert.cisa.gov/tlp/](https://us-cert.cisa.gov/tlp/).",
        "title": "Legal Notice",
        "category": "legal_disclaimer"
      },
      {
        "text": "Worldwide",
        "title": "Countries and Areas Deployed",
        "category": "other"
      },
      {
        "text": "Information Technology",
        "title": "Critical Infrastructure Sectors",
        "category": "other"
      },
      {
        "text": "A command injection vulnerability exists in Windscribe for Linux Desktop App that allows a local user who is a member of the windscribe group to execute arbitrary commands as root via the 'adapterName' parameter of the 'changeMTU' function. Fixed in Windscribe v2.18.3-alpha and v2.18.8.",
        "title": "Risk Evaluation",
        "category": "summary"
      },
      {
        "text": "This issue is fixed in Windscribe for Linux Desktop App v2.18.3-alpha and v2.18.8.",
        "title": "Recommended Practices",
        "category": "general"
      },
      {
        "text": "United States",
        "title": "Company Headquarters Location",
        "category": "other"
      }
    ],
    "references": [
      {
        "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2025/va-25-343-01.json",
        "summary": "Vulnerability Advisory VA-25-343-01 CSAF",
        "category": "self"
      }
    ]
  },
  "product_tree": {
    "branches": [
      {
        "category": "vendor",
        "name": "Windscribe",
        "branches": [
          {
            "category": "product_name",
            "name": "Windscribe for Linux Desktop App",
            "branches": [
              {
                "category": "product_version_range",
                "name": ">=2.10.1|<2.18.3-alpha",
                "product": {
                  "name": "Windscribe Windscribe for Linux Desktop App >=2.10.1|<2.18.3-alpha",
                  "product_id": "CSAFPID-0001"
                }
              },
              {
                "category": "product_version_range",
                "name": ">=2.10.1|<2.18.8",
                "product": {
                  "name": "Windscribe Windscribe for Linux Desktop App >=2.10.1|<2.18.8",
                  "product_id": "CSAFPID-0002"
                }
              },
              {
                "category": "product_version",
                "name": "2.18.3-alpha",
                "product": {
                  "name": "Windscribe Windscribe for Linux Desktop App 2.18.3-alpha",
                  "product_id": "CSAFPID-0003"
                }
              },
              {
                "category": "product_version",
                "name": "2.18.8",
                "product": {
                  "name": "Windscribe Windscribe for Linux Desktop App 2.18.8",
                  "product_id": "CSAFPID-0004"
                }
              }
            ]
          }
        ]
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2025-65199",
      "cwe": {
        "id": "CWE-78",
        "name": "Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')"
      },
      "notes": [
        {
          "category": "summary",
          "text": "A command injection vulnerability exists in Windscribe for Linux Desktop App that allows a local user who is a member of the windscribe group to execute arbitrary commands as root via the 'adapterName' parameter of the 'changeMTU' function. Fixed in Windscribe v2.18.3-alpha and v2.18.8.",
          "title": "Description"
        },
        {
          "category": "details",
          "title": "SSVC",
          "text": "SSVCv2/E:N/A:N/T:T/2025-12-08T20:03:49Z/"
        }
      ],
      "title": "Windscribe for Linux 'changeMTU' local privilege escalation",
      "product_status": {
        "known_affected": [
          "CSAFPID-0001",
          "CSAFPID-0002"
        ],
        "fixed": [
          "CSAFPID-0003",
          "CSAFPID-0004"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "github.com",
          "url": "https://github.com/Windscribe/Desktop-App"
        },
        {
          "category": "external",
          "summary": "github.com",
          "url": "https://github.com/Windscribe/Desktop-App/compare/v2.18.2...v2.18.3?diff=unified&w#diff-cfc5df17057ed92112ae70a42c81c57c79f434429210ff881fb0771cf8e39b4c"
        },
        {
          "category": "external",
          "summary": "github.com",
          "url": "https://github.com/Windscribe/Desktop-App/compare/v2.18.2...v2.18.3?diff=unified&w#diff-57e27ab201a1a612609087b839e03bf87a5a063ffcc3f465a6245469bc102754"
        },
        {
          "category": "external",
          "summary": "hackingbydoing.wixsite.com",
          "url": "https://hackingbydoing.wixsite.com/hackingbydoing/post/windscribe-vpn-local-privilege-escalation"
        },
        {
          "category": "external",
          "summary": "www.cve.org",
          "url": "https://www.cve.org/CVERecord?id=CVE-2025-65199"
        },
        {
          "category": "external",
          "summary": "raw.githubusercontent.com",
          "url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2025/va-25-343-01.json"
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "CSAFPID-0001",
            "CSAFPID-0002"
          ]
        }
      ],
      "remediations": [
        {
          "category": "vendor_fix",
          "details": "Fixed in 2.18.3-alpha.",
          "url": "https://github.com/Windscribe/Desktop-App/releases/tag/v2.18.3",
          "product_ids": [
            "CSAFPID-0001"
          ],
          "date": "2025-10-25T00:00:00Z"
        },
        {
          "category": "vendor_fix",
          "details": "Fixed in 2.18.8.",
          "url": "https://github.com/Windscribe/Desktop-App/releases/tag/v2.18.8",
          "product_ids": [
            "CSAFPID-0002"
          ],
          "date": "2025-11-24T00:00:00Z"
        },
        {
          "category": "vendor_fix",
          "details": "Fixed in 2.18.3-alpha.",
          "url": "https://github.com/Windscribe/Desktop-App/releases/tag/v2.18.3",
          "product_ids": [
            "CSAFPID-0003"
          ],
          "date": "2025-10-25T00:00:00Z"
        },
        {
          "category": "vendor_fix",
          "details": "Fixed in 2.18.8.",
          "url": "https://github.com/Windscribe/Desktop-App/releases/tag/v2.18.8",
          "product_ids": [
            "CSAFPID-0004"
          ],
          "date": "2025-11-24T00:00:00Z"
        }
      ],
      "acknowledgments": [
        {
          "names": [
            "HackingByDoing"
          ]
        }
      ],
      "release_date": "2025-10-25T00:00:00Z"
    }
  ]
}