{"action":"No fix published. Pin and monitor.","affected":[{"introduced":"0"}],"component":"openssh","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":[],"id":"tcs_01M5N8SHX56D8TZYN89ZF6AXYC","modified_at":"2026-10-21T17:47:48.528880226Z","published_at":"2007-04-25T16:19:00Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2007-2243","https://security-tracker.debian.org/tracker/CVE-2007-2243"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2007-2243#Debian:13/openssh","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2007-2243"}],"summary":"OpenSSH 4.6 and earlier, when ChallengeResponseAuthentication is enabled, allows remote attackers to determine the existence of user accounts by attempting to authenticate via S/KEY, which displays a"}