{
  "schemaVersion": 1,
  "attribution": [
    {
      "source": "CISA Known Exploited Vulnerabilities",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
      "licence": "US government work"
    },
    {
      "source": "GitHub Advisory Database",
      "url": "https://github.com/advisories",
      "licence": "CC BY 4.0"
    },
    {
      "source": "Have I Been Pwned",
      "url": "https://haveibeenpwned.com/",
      "licence": "CC BY 4.0"
    },
    {
      "source": "CVE Program (CVE records)",
      "url": "https://www.cve.org/Legal/TermsOfUse",
      "licence": "CVE Terms of Use",
      "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.",
      "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy."
    },
    {
      "source": "FIRST EPSS",
      "url": "https://www.first.org/epss/",
      "licence": "free to use; FIRST requests attribution"
    }
  ],
  "record": {
    "id": "CVE-2021-33540",
    "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2021-33540",
    "idYear": 2021,
    "status": "PUBLISHED",
    "publishedAt": "2021-06-25T18:26:04.688Z",
    "updatedAt": "2024-09-17T03:18:18.324Z",
    "importedAt": "2026-10-24T01:56:32.228Z",
    "snapshot": {
      "id": "cve_2026-10-24_midnight_baseline",
      "at": "2026-10-24T00:00:00.000Z",
      "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z"
    },
    "facts": {
      "title": "Phoenix Contact: Undocumented FTP acces in certain AXL F BK and IL BK devices",
      "summary": "In certain devices of the Phoenix Contact AXL F BK and IL BK product families an undocumented password protected FTP access to the root directory exists.",
      "affected": [
        {
          "vendor": "Phoenix Contact",
          "product": "AXL F BK",
          "platforms": [
            "HW < 01"
          ],
          "versions": [
            {
              "version": "AXL F PN TPS XC (1068857)",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "1.30"
            },
            {
              "version": "AXL F EIP EF (2702782)",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "1.30"
            }
          ]
        },
        {
          "vendor": "Phoenix Contact",
          "product": "AXL F BK",
          "platforms": [
            "HW < 02"
          ],
          "versions": [
            {
              "version": "AXL F PN TPS (2403869)",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "1.30"
            }
          ]
        },
        {
          "vendor": "Phoenix Contact",
          "product": "AXL F BK",
          "platforms": [
            "HW < 05"
          ],
          "versions": [
            {
              "version": "AXL F EIP (2688394)",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "1.30"
            },
            {
              "version": "AXL F ETH (2688459)",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "1.30"
            },
            {
              "version": "AXL F ETH XC (2701949)",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "1.30"
            },
            {
              "version": "AXL F S3 (2701686)",
              "status": "affected",
              "versionType": "custom",
              "lessThan": "1.40"
            }
          ]
        },
        {
          "vendor": "Phoenix Contact",
          "product": "AXL F BK",
          "versions": [
            {
              "version": "AXL F PN (2701815) all revisions",
              "status": "affected"
            },
            {
              "version": "AXL F PN XC (2701222) all revisions",
              "status": "affected"
            },
            {
              "version": "AXL F ETH NET2 (2702177) all revisions",
              "status": "affected"
            },
            {
              "version": "AXL F SAS (2701457) all revisions",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Phoenix Contact",
          "product": "IL",
          "versions": [
            {
              "version": "IL PN BK-PAC (2403696) all revisions",
              "status": "affected"
            },
            {
              "version": "IL PN BK DI8 DO4 2TX-PAC (2703994) all revisions",
              "status": "affected"
            },
            {
              "version": "IL PN BK DI8 DO4 2SCRJ-PAC (2878379) all revisions",
              "status": "affected"
            },
            {
              "version": "IL ETH BK DI8 DO4 2TX-XC-PAC (2701388) all revisions",
              "status": "affected"
            },
            {
              "version": "IL ETH BK DI8 DO4 2TX-PAC (2703981) all revisions",
              "status": "affected"
            },
            {
              "version": "IL EIP BK DI8 DO4 2TX-PAC (2897758) all revisions",
              "status": "affected"
            },
            {
              "version": "IL S3 BK DI8 DO4 2TX-PAC (2692380) all revisions",
              "status": "affected"
            }
          ]
        }
      ]
    }
  }
}