FKIE_CVE-2025-41256

Vulnerability from fkie_nvd - Published: 2025-06-25 10:15 - Updated: 2026-06-17 09:22
Severity
7.4 (High) - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
Summary
Cyberduck and Mountain Duck improper handle TLS certificate pinning for untrusted certificates (e.g., self-signed), since the certificate fingerprint is stored as SHA-1, although SHA-1 is considered weak. This issue affects Cyberduck: through 9.1.6; Mountain Duck: through 4.17.5.
References
1e3a9e0f-5156-4bf8-b8a3-cc311bfc0f4ahttps://github.com/iterate-ch/cyberduck/security/advisories/GHSA-688c-vjrc-84rv
1e3a9e0f-5156-4bf8-b8a3-cc311bfc0f4ahttps://github.com/sbaresearch/advisories/tree/public/2025/SBA-ADV-20250325-02_Cyberduck_Mountain_Duck_Weak_Hash
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/iterate-ch/cyberduck/security/advisories/GHSA-688c-vjrc-84rv
134c704f-9b21-4f2e-91b3-4a467353bcc0https://github.com/sbaresearch/advisories/tree/public/2025/SBA-ADV-20250325-02_Cyberduck_Mountain_Duck_Weak_Hash
Impacted products
Vendor Product Version
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "Cyberduck",
          "repo": "https://github.com/iterate-ch/cyberduck",
          "vendor": "iterate GmbH",
          "versions": [
            {
              "lessThanOrEqual": "9.1.6",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Mountain Duck",
          "vendor": "iterate GmbH",
          "versions": [
            {
              "lessThanOrEqual": "4.17.5",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "1e3a9e0f-5156-4bf8-b8a3-cc311bfc0f4a"
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Cyberduck and Mountain Duck improper handle TLS certificate pinning for untrusted certificates (e.g., self-signed), since the certificate fingerprint is stored as SHA-1, although SHA-1 is considered weak.\n\n\n\n\n\n\n\nThis issue affects Cyberduck: through 9.1.6; Mountain Duck: through 4.17.5."
    },
    {
      "lang": "es",
      "value": "Cyberduck y Mountain Duck gestionan incorrectamente la fijaci\u00f3n de certificados TLS para certificados no confiables (p. ej., autofirmados), ya que la huella digital del certificado se almacena como SHA-1, aunque SHA-1 se considera d\u00e9bil. Este problema afecta a Cyberduck: hasta la versi\u00f3n 9.1.6; Mountain Duck: hasta la versi\u00f3n 4.17.5."
    }
  ],
  "id": "CVE-2025-41256",
  "lastModified": "2026-06-17T09:22:41.027",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "HIGH",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 7.4,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 2.2,
        "impactScore": 5.2,
        "source": "1e3a9e0f-5156-4bf8-b8a3-cc311bfc0f4a",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-41256",
          "options": [
            {
              "exploitation": "poc"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-06-25T13:34:04.627890Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-06-25T10:15:22.610",
  "references": [
    {
      "source": "1e3a9e0f-5156-4bf8-b8a3-cc311bfc0f4a",
      "url": "https://github.com/iterate-ch/cyberduck/security/advisories/GHSA-688c-vjrc-84rv"
    },
    {
      "source": "1e3a9e0f-5156-4bf8-b8a3-cc311bfc0f4a",
      "url": "https://github.com/sbaresearch/advisories/tree/public/2025/SBA-ADV-20250325-02_Cyberduck_Mountain_Duck_Weak_Hash"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/iterate-ch/cyberduck/security/advisories/GHSA-688c-vjrc-84rv"
    },
    {
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
      "url": "https://github.com/sbaresearch/advisories/tree/public/2025/SBA-ADV-20250325-02_Cyberduck_Mountain_Duck_Weak_Hash"
    }
  ],
  "sourceIdentifier": "1e3a9e0f-5156-4bf8-b8a3-cc311bfc0f4a",
  "vulnStatus": "Deferred",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-328"
        }
      ],
      "source": "1e3a9e0f-5156-4bf8-b8a3-cc311bfc0f4a",
      "type": "Secondary"
    }
  ]
}



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