CVE-2025-41256

7.4 HIGH
Published: June 25, 2025 Modified: April 15, 2026
View on NVD

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://github.com/iterate-ch/cyberduck/security/advisories/GHSA-688c-vjrc-84rv
Source: 1e3a9e0f-5156-4bf8-b8a3-cc311bfc0f4a
https://github.com/sbaresearch/advisories/tree/public/2025/SBA-ADV-20250325-02_Cyberduck_Mountain_Duck_Weak_Hash
Source: 1e3a9e0f-5156-4bf8-b8a3-cc311bfc0f4a
https://github.com/iterate-ch/cyberduck/security/advisories/GHSA-688c-vjrc-84rv
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
https://github.com/sbaresearch/advisories/tree/public/2025/SBA-ADV-20250325-02_Cyberduck_Mountain_Duck_Weak_Hash
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

4 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.4 / 10.0
EPSS (Exploit Probability)
0.0%
6th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

CWE-328

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