← Back to CVE Explorer

CVE-2025-35021

Full vulnerability record from the local CVENow database.

Description

By failing to authenticate three times to an unconfigured Abilis CPX device via SSH, an attacker can login to a restricted shell on the fourth attempt, and from there, relay connections.

Severity
MEDIUM
CVSS score
6.5 (v3.1)
Vulnerability status
Analyzed
Source identifier
Published
2025-11-04 01:15:33.107000
Last modified
2026-10-18 21:10:00.120000
View original CVE JSON
{
  "id": "CVE-2025-35021",
  "sourceIdentifier": "[email protected]",
  "published": "2025-11-04T01:15:33.107",
  "lastModified": "2026-10-18T21:10:00.120",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "By failing to authenticate three times to an unconfigured Abilis CPX device via SSH, an attacker can login to a restricted shell on the fourth attempt, and from there, relay connections."
    },
    {
      "lang": "es",
      "value": "Al fallar la autenticación tres veces en un dispositivo Abilis CPX no configurado a través de SSH, un atacante puede iniciar sesión en un shell restringido al cuarto intento y, desde allí, retransmitir conexiones."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Abilis",
          "product": "CPX",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "0",
              "lessThan": "9.0.7",
              "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:N/S:U/C:L/I:L/A:N",
          "baseScore": 6.5,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 2.5
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2025-11-05T14:54:07.847887Z",
          "id": "CVE-2025-35021",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-1188"
        }
      ]
    }
  ],
  "configurations": [
    {
      "operator": "AND",
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:o:antek:abilis_cpx_firmware:*:*:*:*:*:*:*:*",
              "versionEndExcluding": "9.0.7",
              "matchCriteriaId": "076FE4A3-E773-4DFE-B197-AAF0A1BC2D58"
            }
          ]
        },
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": false,
              "criteria": "cpe:2.3:h:antek:abilis_cpx_2000:-:*:*:*:*:*:*:*",
              "matchCriteriaId": "185FBB48-3D75-4863-A979-5DAADD4424C2"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://support.abilis.net/relnotes/cpx2k/R9.0.html#R9.0.7",
      "source": "[email protected]",
      "tags": [
        "Release Notes"
      ]
    },
    {
      "url": "https://takeonme.org/gcves/GCVE-1337-2025-00000000000000000000000000000000000000000000000001011111111111011111111110000000000000000000000000000000000000000000000000000000100",
      "source": "[email protected]",
      "tags": [
        "Exploit",
        "Mitigation",
        "Third Party Advisory"
      ]
    },
    {
      "url": "https://www.runzero.com/advisories/abilis-cpx-authentication-bypass-cve-2025-35021/",
      "source": "[email protected]",
      "tags": [
        "Exploit",
        "Mitigation",
        "Third Party Advisory"
      ]
    }
  ]
}