CVE-2025-61984
OpenSSH SSH Command Injection
Description
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.)
INFO
Published Date :
Oct. 6, 2025, 7:15 p.m.
Last Modified :
Oct. 8, 2025, 7:38 p.m.
Remotely Exploit :
No
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | LOW | [email protected] |
Solution
- Update OpenSSH to version 10.1 or later.
- Validate usernames from untrusted sources.
- Sanitize usernames before processing.
- Configure ProxyCommand securely.
Public PoC/Exploit Available at Github
CVE-2025-61984 has a 3 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-61984.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-61984 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-61984
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
None
Shell
PoC for OpenSSH ProxyCommand CVE-2025-61984
Shell
📡 PoC auto collect from GitHub. ⚠️ Be careful Malware.
security cve exploit poc vulnerability
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-61984 vulnerability anywhere in the article.
-
Daily CyberSecurity
Zimbra XSS Zero-Day (CVE-2025-27915) Actively Exploited; CISA Adds to KEV Catalog
A cross-site scripting (XSS) vulnerability in Synacor Zimbra Collaboration Suite (ZCS) — tracked as CVE-2025-27915 — has been confirmed to be actively exploited in the wild, prompting CISA to add the ... Read more
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Daily CyberSecurity
OpenSSH Flaw (CVE-2025-61984) Allows Remote Code Execution via Usernames
Security researcher David Leadbeater has disclosed a vulnerability in OpenSSH, identified as CVE-2025-61984, which highlights how even minor quirks in command-line parsing and shell behavior can open ... Read more
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CybersecurityNews
OpenSSH Vulnerability Exploited Via ProxyCommand to Execute Remote Code – PoC Released
A new command injection vulnerability in OpenSSH, tracked as CVE-2025-61984, has been disclosed, which could allow an attacker to achieve remote code execution on a victim’s machine. The vulnerability ... Read more
The following table lists the changes that have been made to the
CVE-2025-61984 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Oct. 07, 2025
Action Type Old Value New Value Added Reference https://dgl.cx/2025/10/bash-a-newline-ssh-proxycommand-cve-2025-61984 -
New CVE Received by [email protected]
Oct. 06, 2025
Action Type Old Value New Value Added Description 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.) Added CVSS V3.1 AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N Added CWE CWE-159 Added Reference https://marc.info/?l=openssh-unix-dev&m=175974522032149&w=2 Added Reference https://www.openssh.com/releasenotes.html#10.1p1 Added Reference https://www.openwall.com/lists/oss-security/2025/10/06/1