{"id":"CVE-2025-61984","title":"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","summary":"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 %…","severity":"low","cvss":3.6,"cvssVector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N","cvssSource":"cna","cwe":["CWE-159"],"vendor":"OpenBSD","product":"OpenSSH","affected":["OpenSSH < 10.1"],"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"total","timestamp":"2025-10-08T03:55:10.734755Z"},"exploitAvailable":true,"published":"2025-10-06","updated":"2026-09-08","sourceUpdated":"2026-09-08T08:43:01.210Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2025-61984","references":[{"url":"https://www.openwall.com/lists/oss-security/2025/10/06/1"},{"url":"https://marc.info/?l=openssh-unix-dev&m=175974522032149&w=2"},{"url":"https://www.openssh.com/releasenotes.html#10.1p1"}],"tags":["cve.org","exploit-available"],"epss":0.00286,"epssPercentile":0.18801,"exploits":{"github":2,"githubRepos":["https://github.com/dgl/cve-2025-61984-poc","https://github.com/flyskyfire/cve-2025-61984-poc"],"checkedAt":"2026-09-26T09:05:34.316Z"},"ingestedAt":"2026-09-08T15:33:26.996Z","slug":"CVE-2025-61984","body":"## Overview\n\nssh 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.)\n\n## Affected\n\n- `OpenSSH < 10.1`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":32,"depthScoreParts":{"impact":19.8,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[]}