---
cve: "CVE-2025-61984"
severity: "LOW"
cvss: 3.6
epss: "28%"
vendor: "OpenBSD"
kev: false
exploited: false
published: "2025-10-06 19:15:36"
tags: [cve, security, low]
source: tsecurity.de CVE-Dossier
exported: "2026-09-13T13:33:47+02:00"
---

# CVE-2025-61984

> 3.6 LOW

## Beschreibung

ssh in OpenSSH before 10.1 allows control characters in usernames that originate from certain possibly untrusted sources, potentially leading to code execution when a ProxyCommand is used. The untrusted sources are the command line and %-sequence expansion of a configuration file. (A configuration file that provides a complete literal username is not categorized as an untrusted source.)

## CVSS-Vektor

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

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Lokal | good |
| AC Komplexität | Hoch | good |
| PR Privilegien | Gering | warn |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Gering | warn |
| I Integrität | Gering | warn |
| A Verfügbarkeit | Keine | good |

## Referenzen

- <https://www.openwall.com/lists/oss-security/2025/10/06/1>
- <https://marc.info/?l=openssh-unix-dev&m=175974522032149&w=2>
- <https://www.openssh.com/releasenotes.html#10.1p1>
- <http://www.openwall.com/lists/oss-security/2025/10/07/1>
- <http://www.openwall.com/lists/oss-security/2025/10/12/1>
- <https://www.vicarius.io/vsociety/posts/cve-2025-61984-detection-script-remote-code-execution-vulnerability-affecting-openssh>
- <https://www.vicarius.io/vsociety/posts/cve-2025-61984-mitigation-script-remote-code-execution-vulnerability-affecting-openssh>
- <https://cert-portal.siemens.com/productcert/html/ssa-019113.html>
- <https://dgl.cx/2025/10/bash-a-newline-ssh-proxycommand-cve-2025-61984>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2025-61984) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_