---
cve: "CVE-2025-41255"
severity: "HIGH"
cvss: 8.0
epss: "0.2%"
vendor: "iterate GmbH"
kev: false
exploited: false
published: "2025-06-25 10:15:21"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-11-09T13:52:48+01:00"
---

# CVE-2025-41255

> 8.0 HIGH · 🧪 PoC

## Beschreibung

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.

## CNA-Record (Kanon, cvelistV5)

- CNA: **sba-research**
- State: PUBLISHED
- Stand: 2025-06-25 13:33:27
- CNA-CVSS: **8.0** (`CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N`)

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **poc**
  - Automatable: **no**
  - Technical Impact: **total**

## CVSS-Vektor

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

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Hoch | good |
| PR Privilegien | Keine | bad |
| UI Interaktion | Erforderlich | good |
| S Scope | Verändert | bad |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Keine | good |

## Schwachstellen-Klasse

- **CWE-266** — Incorrect Privilege Assignment
  A product incorrectly assigns a privilege to a particular actor, creating an unintended sphere of control for that actor.

## Referenzen

- <https://github.com/sbaresearch/advisories/tree/public/2025/SBA-ADV-20250325-01_Cyberduck_Mountain_Duck_Certificate_Handling>
- <https://github.com/iterate-ch/cyberduck/security/advisories/GHSA-vjjc-grpp-m655>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2025-41255/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_