{"action":"Upgrade openssl to 1.0.0d-1 or later.","affected":[{"fixed":"1.0.0d-1","introduced":"0"}],"component":"openssl","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["1.0.0d-1"],"id":"tcs_01M5NFF3YKNPABC09Q2XADR0Z8","modified_at":"2026-10-23T18:04:49.486362670Z","published_at":"2021-02-16T17:15:13.190Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2021-23839","https://security-tracker.debian.org/tracker/CVE-2021-23839"],"severity":{"label":"low","score":3.7},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2021-23839","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2021-23839"}],"summary":"OpenSSL 1.0.2 supports SSLv2. If a client attempts to negotiate SSLv2 with a server that is configured to support both SSLv2 and more recent SSL and TLS versions then a check is made for a version rol"}