{"action":"Upgrade inn2 to 2.5.3-1 or later.","affected":[{"fixed":"2.5.3-1","introduced":"0"}],"component":"inn2","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["2.5.3-1"],"id":"tcs_01M5NA3GAC0JQ3SJDK5R396HDB","modified_at":"2026-10-23T17:47:47.105102200Z","published_at":"2012-11-11T13:00:46.727Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2012-3523","https://security-tracker.debian.org/tracker/CVE-2012-3523"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2012-3523#Debian:14/inn2","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2012-3523"}],"summary":"The STARTTLS implementation in nnrpd in INN before 2.5.3 does not properly restrict I/O buffering, which allows man-in-the-middle attackers to insert commands into encrypted sessions by sending a clea"}