{"action":"Upgrade dropbear to 2018.76-4 or later.","affected":[{"fixed":"2018.76-4","introduced":"0"}],"component":"dropbear","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["2018.76-4"],"id":"tcs_01M5ND3MBMKB717MBKD7TQKTHR","modified_at":"2026-10-23T18:03:00.720497255Z","published_at":"2018-08-21T01:29:00.350Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2018-15599","https://security-tracker.debian.org/tracker/CVE-2018-15599"],"severity":{"label":"medium","score":5.3},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2018-15599#Debian:14/dropbear","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2018-15599"}],"summary":"The recv_msg_userauth_request function in svr-auth.c in Dropbear through 2018.76 is prone to a user enumeration vulnerability because username validity affects how fields in SSH_MSG_USERAUTH messages"}