{"action":"Upgrade chasen to 2.4.4-17 or later.","affected":[{"fixed":"2.4.4-17","introduced":"0"}],"component":"chasen","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["2.4.4-17"],"id":"tcs_01M5N9W99WA2WY4FMVFMZ1RMSE","modified_at":"2026-10-23T17:47:28.235326974Z","published_at":"2011-11-08T22:55:01.597Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2011-4000","https://security-tracker.debian.org/tracker/CVE-2011-4000"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2011-4000","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2011-4000"}],"summary":"Buffer overflow in ChaSen 2.4.x allows remote attackers to execute arbitrary code via a crafted string."}