{"action":"Upgrade putty to 0.75-3 or later.","affected":[{"fixed":"0.75-3","introduced":"0"}],"component":"putty","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["0.75-3"],"id":"tcs_01M5NFTC0K8VEME081NFQAZ4HB","modified_at":"2026-10-23T18:04:50.783410961Z","published_at":"2021-07-09T21:15:08.540Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-36367","https://security-tracker.debian.org/tracker/CVE-2021-36367"],"severity":{"label":"high","score":8.1},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-36367#Debian:14/putty","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-36367"}],"summary":"PuTTY through 0.75 proceeds with establishing an SSH session even if it has never sent a substantive authentication response. This makes it easier for an attacker-controlled SSH server to present a la"}