CVE-2025-61984

LOW

OpenSSH <10.1 - RCE

Title source: llm

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.)

Exploits (2)

github WORKING POC 7 stars

by dgl · shellpoc

https://github.com/dgl/cve-2025-61984-poc

View Code ZIP pw:eip

github TROJAN

by flyskyfire · shellpoc

https://github.com/flyskyfire/cve-2025-61984-poc

View Code ZIP pw:eip

References (8)

[Various Sources] https://www.openssh.com/releasenotes.html#10.1p1

[Various Sources] https://dgl.cx/2025/10/bash-a-newline-ssh-proxycommand-cve-2025-61984

[Third Party Advisory] https://www.vicarius.io/vsociety/posts/cve-2025-61984-detection-script-remote-code-execution-vulnerability-affecting-openssh

[Third Party Advisory] https://www.vicarius.io/vsociety/posts/cve-2025-61984-mitigation-script-remote-code-execution-vulnerability-affecting-openssh

[Mailing List] https://www.openwall.com/lists/oss-security/2025/10/06/1

[Mailing List] http://www.openwall.com/lists/oss-security/2025/10/07/1

[Mailing List] http://www.openwall.com/lists/oss-security/2025/10/12/1

[Mailing List] https://marc.info/?l=openssh-unix-dev&m=175974522032149&w=2

Scores

CVSS v3 3.6

EPSS 0.0001

EPSS Percentile 0.2%

Attack Vector LOCAL

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

Classification

CWE

CWE-159

Status draft

Timeline

Published Oct 06, 2025

Tracked Since Feb 18, 2026