CVE-2025-61984
CVE-2025-61984
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:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
Affected products
OpenBSD · OpenSSHWant to know if your infrastructure is exposed to this?
Talk to TrueHacking →References
https://dgl.cx/2025/10/bash-a-newline-ssh-proxycommand-cve-2025-61984https://marc.info/?l=openssh-unix-dev&m=175974522032149&w=2https://www.openssh.com/releasenotes.html#10.1p1https://www.openwall.com/lists/oss-security/2025/10/06/1https://www.vicarius.io/vsociety/posts/cve-2025-61984-detection-script-remote-code-execution-vulnerability-affecting-opensshhttps://www.vicarius.io/vsociety/posts/cve-2025-61984-mitigation-script-remote-code-execution-vulnerability-affecting-opensshhttp://www.openwall.com/lists/oss-security/2025/10/07/1http://www.openwall.com/lists/oss-security/2025/10/12/1