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.
History

Wed, 25 Jun 2025 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 25 Jun 2025 09:30:00 +0000

Type Values Removed Values Added
Description 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.
Title Cyberduck and Mountain Duck - Weak Hash Algorithm for Certificate Fingerprint
Weaknesses CWE-328
References
Metrics cvssV3_1

{'score': 7.4, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: sba-research

Published: 2025-06-25T09:16:58.586Z

Updated: 2025-06-25T13:34:07.242Z

Reserved: 2025-04-16T09:37:50.631Z

Link: CVE-2025-41256

cve-icon Vulnrichment

Updated: 2025-06-25T13:34:00.449Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2025-06-25T10:15:22.610

Modified: 2025-06-26T18:57:43.670

Link: CVE-2025-41256

cve-icon Redhat

No data.