CVE-2026-109681

Full vulnerability record from the local CVENow database.

Description

The FTP client trusts the server's PASV response IP:port without validation against the control connection target. A rogue FTP server can specify any IP:port in the 227 Passive Mode response, causing the operator's machine to open a TCP connection to an arbitrary host.

Severity

MEDIUM

CVSS score

4.7 (v3.1)

Vulnerability status

Awaiting Analysis

Source identifier

[email protected]

Published

2026-10-21 00:17:17.830000

Last modified

2026-10-28 20:17:17.190000

View original CVE JSON

{
  "id": "CVE-2026-109681",
  "sourceIdentifier": "[email protected]",
  "published": "2026-10-21T00:17:17.830",
  "lastModified": "2026-10-28T20:17:17.190",
  "vulnStatus": "Awaiting Analysis",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The FTP client trusts the server's PASV response IP:port without validation against the control connection target. A rogue FTP server can specify any IP:port in the 227 Passive Mode response, causing the operator's machine to open a TCP connection to an arbitrary host."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Rapid7",
          "product": "Metasploit Framework",
          "defaultStatus": "unaffected",
          "modules": [
            "All FTP scanner modules using PASV mode"
          ],
          "platforms": [
            "MacOS",
            "Windows",
            "Linux"
          ],
          "programFiles": [
            "lib/msf/core/exploit/remote/ftp.rb"
          ],
          "repo": "https://github.com/rapid7/metasploit-framework",
          "versions": [
            {
              "version": "0",
              "lessThan": "6.5.7",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N",
          "baseScore": 4.7,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "REQUIRED",
          "scope": "CHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 1.4
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-10-28T17:47:49.145279Z",
          "id": "CVE-2026-109681",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-918"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://github.com/rapid7/metasploit-framework/pull/21994",
      "source": "[email protected]"
    }
  ]
}