---
cve: "CVE-2026-100417"
severity: "LOW"
cvss: 2.3
epss: "0.2%"
vendor: "RustDesk"
kev: false
exploited: false
published: "2026-09-25 21:17:22"
tags: [cve, security, low]
source: tsecurity.de CVE-Dossier
exported: "2026-10-04T09:28:58+02:00"
---

# CVE-2026-100417

> 2.3 LOW · 🧪 PoC

## Beschreibung

RustDesk before 1.5.0 on Windows fails to enforce the one-way file transfer option against peer clipboard file requests, allowing authenticated peers to read files from the host clipboard. Attackers can send FormatDataRequest and FileContentsRequest messages to retrieve copied files by guessing the FileGroupDescriptorW format identifier.

## CISA-Anreicherung (vulnrichment/ADP)

- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **none**
  - Automatable: **no**
  - Technical Impact: **partial**

## CVSS-Vektor

```
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Gering | warn |
| UI Interaktion | Keine | bad |

## Patch verfügbar (OSV)

- e9ddbd8f460dac1b30b9815ba324a5dadc8d97b0 (Commit)
- f299fb9906006247863250d7dfaa016f29eef7a4 (Commit)

## BSI-Hinweise (deutsch)

- [RustDesk: Schwachstelle ermöglicht Offenlegung von Informationen](https://wid.cert-bund.de/portal/wid/sicherheitshinweis/WID-SEC-W-2026-3589) — _BSI-Einstufung: niedrig_
  Ein entfernter, authentisierter Angreifer kann eine Schwachstelle in RustDesk ausnutzen, um Informationen offenzulegen.

## Referenzen

- <https://github.com/rustdesk/rustdesk/pull/16333>
- <https://github.com/rustdesk/rustdesk/commit/f299fb9906006247863250d7dfaa016f29eef7a4>
- <https://github.com/rustdesk/rustdesk/blob/1.4.9/src/ui_cm_interface.rs#L618-L638>
- <https://github.com/rustdesk/rustdesk/blob/1.4.9/libs/clipboard/src/windows/wf_cliprdr.c#L2728-L2770>
- <https://github.com/rustdesk/rustdesk>
- <https://www.vulncheck.com/advisories/rustdesk-before-1.5.0-one-way-file-transfer-bypass>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-100417) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_