CVE-2025-59980

Estado: AnalizadaMedia (6.9)—

An Authentication Bypass by Primary Weakness

in the FTP server of Juniper Networks Junos OS allows an unauthenticated, network-based attacker to get limited read-write access to files on the device. When the FTP server is enabled and a user named "ftp" or "anonymous" is configured, that user can login without providing the configured password and then has read-write access to their home directory.

This issue affects Junos OS:

Detalles técnicos trazas, registros y código del informe original

  *  all versions before 22.4R3-S8,
  *  23.2 versions before 23.2R2-S3,
  *  23.4 versions before 23.4R2.

CVSS

Versión: 4.0
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/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:Y/R:X/V:X/RE:M/U:X
Puntuación base: 6.9

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días: 0.29%
Percentil entre todas las CVEs puntuadas: 20
Fecha de la puntuación: 5/10/2026

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

Juniper — Junos

CWE

CWE-305

Referencias

https://supportportal.juniper.net/JSA103167

JSON original (NVD)

Mostrar

{
  "id": "CVE-2025-59980",
  "cveTags": [],
  "metrics": {
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-59980",
          "role": "CISA Coordinator",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "version": "2.0.3",
          "timestamp": "2025-10-09T19:45:37.043436Z"
        }
      }
    ],
    "cvssMetricV31": [
      {
        "type": "Secondary",
        "source": "sirt@juniper.net",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.1",
          "baseScore": 6.5,
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
          "integrityImpact": "LOW",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "NONE",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "LOW"
        },
        "impactScore": 2.5,
        "exploitabilityScore": 3.9
      }
    ],
    "cvssMetricV40": [
      {
        "type": "Secondary",
        "source": "sirt@juniper.net",
        "cvssData": {
          "Safety": "NOT_DEFINED",
          "version": "4.0",
          "Recovery": "NOT_DEFINED",
          "baseScore": 6.9,
          "Automatable": "YES",
          "attackVector": "NETWORK",
          "baseSeverity": "MEDIUM",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/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:Y/R:X/V:X/RE:M/U:X",
          "exploitMaturity": "NOT_DEFINED",
          "providerUrgency": "NOT_DEFINED",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "privilegesRequired": "NONE",
          "subIntegrityImpact": "NONE",
          "vulnIntegrityImpact": "LOW",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "subAvailabilityImpact": "NONE",
          "vulnAvailabilityImpact": "NONE",
          "availabilityRequirement": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "subConfidentialityImpact": "NONE",
          "vulnConfidentialityImpact": "LOW",
          "confidentialityRequirement": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "vulnerabilityResponseEffort": "MODERATE",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED"
        }
      }
    ]
  },
  "affected": [
    {
      "source": "sirt@juniper.net",
      "affectedData": [
        {
          "vendor": "Juniper Networks",
          "product": "Junos OS",
          "versions": [
            {
              "status": "affected",
              "version": "0",
              "lessThan": "22.4R3-S8",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "23.2",
              "lessThan": "23.2R2-S3",
              "versionType": "semver"
            },
            {
              "status": "affected",
              "version": "23.4",
              "lessThan": "23.4R2",
              "versionType": "semver"
            }
          ],
          "defaultStatus": "unaffected"
        }
      ]
    }
  ],
  "published": "2025-10-09T17:15:59.427",
  "references": [
    {
      "url": "https://supportportal.juniper.net/JSA103167",
      "tags": [
        "Vendor Advisory"
      ],
      "source": "sirt@juniper.net"
    }
  ],
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "type": "Secondary",
      "source": "sirt@juniper.net",
      "description": [
        {
          "lang": "en",
          "value": "CWE-305"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "An Authentication Bypass by Primary Weakness\n\nin the FTP server of Juniper Networks Junos OS allows an unauthenticated, network-based attacker to get limited read-write access to files on the device.\nWhen the FTP server is enabled and a user named \"ftp\" or \"anonymous\" is configured, that user can login without providing the configured password and then has read-write access to their home directory.\n\nThis issue affects Junos OS: \n\n\n\n  *  all versions before 22.4R3-S8,\n  *  23.2 versions before 23.2R2-S3,\n  *  23.4 versions before 23.4R2."
    }
  ],
  "lastModified": "2026-06-17T09:46:57.537",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:o:juniper:junos:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "57F66641-003B-49D6-A9B9-AB300CFE3C93",
              "versionEndExcluding": "22.4"
            },
            {
              "criteria": "cpe:2.3:o:juniper:junos:22.4:-:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "1379EF30-AF04-4F98-8328-52A631F24737"
            },
            {
              "criteria": "cpe:2.3:o:juniper:junos:22.4:r1:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "28E42A41-7965-456B-B0AF-9D3229CE4D4C"
            },
            {
              "criteria": "cpe:2.3:o:juniper:junos:22.4:r1-s1:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "CB1A77D6-D3AD-481B-979C-8F778530B175"
            },
            {
              "criteria": "cpe:2.3:o:juniper:junos:22.4:r1-s2:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "3A064B6B-A99B-4D8D-A62D-B00C7870BC30"
            },
            {
              "criteria": "cpe:2.3:o:juniper:junos:22.4:r2:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "40813417-A938-4F74-A419-8C5188A35486"
            },
            {
              "criteria": "cpe:2.3:o:juniper:junos:22.4:r2-s1:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "7FC1BA1A-DF0E-4B15-86BA-24C60E546732"
            },
            {
              "criteria": "cpe:2.3:o:juniper:junos:22.4:r2-s2:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "EBB967BF-3495-476D-839A-9DBFCBE69F91"
            },
            {
              "criteria": "cpe:2.3:o:juniper:junos:22.4:r3:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "7E5688D6-DCA4-4550-9CD1-A3D792252129"
            },
            {
              "criteria": "cpe:2.3:o:juniper:junos:22.4:r3-s1:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "8494546C-00EA-49B6-B6FA-FDE42CA5B1FA"
            },
            {
              "criteria": "cpe:2.3:o:juniper:junos:22.4:r3-s2:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "8BB98579-FA33-4E41-A162-A46E9709FBD3"
            },
            {
              "criteria": "cpe:2.3:o:juniper:junos:22.4:r3-s3:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "08E2562F-FB18-4347-8497-7D61B8157EBB"
            },
            {
              "criteria": "cpe:2.3:o:juniper:junos:22.4:r3-s4:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "494D1D96-1DA2-4B0A-9536-1B5A4FDFCA09"
            },
            {
              "criteria": "cpe:2.3:o:juniper:junos:22.4:r3-s5:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "60A1E37B-1990-44D9-87FE-300678243BE2"
            },
            {
              "criteria": "cpe:2.3:o:juniper:junos:22.4:r3-s6:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "D306ED88-8700-4FD4-8919-3C85728C04C3"
            },
            {
              "criteria": "cpe:2.3:o:juniper:junos:22.4:r3-s7:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "11340C63-A638-420C-85C9-1B4438C88D52"
            },
            {
              "criteria": "cpe:2.3:o:juniper:junos:23.2:-:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "1A78CC80-E8B1-4CDA-BB35-A61833657FA7"
            },
            {
              "criteria": "cpe:2.3:o:juniper:junos:23.2:r1:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "4B3B2FE1-C228-46BE-AC76-70C2687050AE"
            },
            {
              "criteria": "cpe:2.3:o:juniper:junos:23.2:r1-s1:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "F1B16FF0-900F-4AEE-B670-A537139F6909"
            },
            {
              "criteria": "cpe:2.3:o:juniper:junos:23.2:r1-s2:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B227E831-30FF-4BE1-B8B2-31829A5610A6"
            },
            {
              "criteria": "cpe:2.3:o:juniper:junos:23.2:r2:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "1ADA814B-EF98-45B1-AF7A-0C89688F7CA5"
            },
            {
              "criteria": "cpe:2.3:o:juniper:junos:23.2:r2-s1:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "A6FB32DF-D062-4FB9-8777-452978BEC7B7"
            },
            {
              "criteria": "cpe:2.3:o:juniper:junos:23.2:r2-s2:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "B3B6C811-5C10-4486-849D-5559B592350A"
            },
            {
              "criteria": "cpe:2.3:o:juniper:junos:23.4:-:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "78481ABC-3620-410D-BC78-334657E0BB75"
            },
            {
              "criteria": "cpe:2.3:o:juniper:junos:23.4:r1:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "BE8A5BA3-87BD-473A-B229-2AAB2C797005"
            },
            {
              "criteria": "cpe:2.3:o:juniper:junos:23.4:r1-s1:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "8B74AC3E-8FC9-400A-A176-4F7F21F10756"
            },
            {
              "criteria": "cpe:2.3:o:juniper:junos:23.4:r1-s2:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "CB2D1FCE-8019-4CE1-BA45-D62F91AF7B51"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "sirt@juniper.net"
}