CVE-2025-41255

Published: Jun 25, 2025

Modified: Jun 25, 2025

PUBLISHED

CVSS v3.1

8.0

HIGH

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.

Vendor	Product	Versions
iterate GmbH	Cyberduck	affected `0 - <= 9.1.6`
iterate GmbH	Mountain Duck	affected `0 - <= 4.17.5`

Weaknesses (CWE)

CWE-266

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

High

Integrity

High

Availability

None

References

https://github.com/sbaresearch/advisories/tree/public/2025/SBA-ADV-20250325-01_Cyberduck_Mountain_Duck_Certificate_Handling

third-party-advisory

https://github.com/iterate-ch/cyberduck/security/advisories/GHSA-vjjc-grpp-m655

vendor-advisory

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CVE-2025-41255

Description

Affected Products

Weaknesses (CWE)

CVSS v3.1 Details

References