PT-2025-46043 · Julia · Openssh Jll

Published 2025-10-09 · Updated 2025-10-09

OSV

CVSS v3.1

3.6

Low

Base vector

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

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.)

Fix

Related Identifiers

JLSEC-2025-7

Affected Products

Openssh Jll

References · 11

• https://nvd.nist.gov/vuln/detail/CVE-2025-61984 · Security Note
• https://osv.dev/vulnerability/JLSEC-2025-7 · Vendor Advisory
• https://openwall.com/lists/oss-security/2025/10/06/1 · Note
• https://dgl.cx/2025/10/bash-a-newline-ssh-proxycommand-cve-2025-61984 · Note
• https://vicarius.io/vsociety/posts/cve-2025-61984-detection-script-remote-code-execution-vulnerability-affecting-openssh · Note
• http://openwall.com/lists/oss-security/2025/10/12/1 · Note
• https://openssh.com/releasenotes.html#10.1p1 · Note
• https://marc.info/?l=openssh-unix-dev&m=175974522032149&w=2 · Note
• https://github.com/advisories/GHSA-hh67-847q-q3h9 · Note
• https://vicarius.io/vsociety/posts/cve-2025-61984-mitigation-script-remote-code-execution-vulnerability-affecting-openssh · Note
• http://openwall.com/lists/oss-security/2025/10/07/1 · Note