CVE-2025-41255

HighCVSS 8.0/10Last modified Jun 17, 2026

Description

Cyberduck and Mountain Duck improperly handle TLS certificate pinning for untrusted certificates (e.g., self-signed), unnecessarily installing it to the Windows Certificate Store of the current user without any restrictions.

This issue affects Cyberduck through 9.1.6 and Mountain Duck through 4.17.5.

Metrics

CVSS 3.1 8.0/10CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N

Weakness enumeration

CWE-266

Affected software

VendorProductVersions
iterate GmbHCyberduck<= 9.1.6
iterate GmbHMountain Duck<= 4.17.5

References

Timeline

Published
Jun 25, 2025
Last modified
Jun 17, 2026
NVD status
Deferred

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CVE-2025-41255: High severity, CVSS 8.0 | Vulnix