{"action":"Upgrade irssi to 1.0.5-1 or later.","affected":[{"fixed":"1.0.5-1","introduced":"0"}],"component":"irssi","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["1.0.5-1"],"id":"tcs_01M5NC6ZHHHW0QCSYASDPR8QAY","modified_at":"2026-09-01T20:02:41.976905154Z","published_at":"2017-10-22T20:29:00.307Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2017-15721","https://security-tracker.debian.org/tracker/CVE-2017-15721"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2017-15721#Debian:14/irssi","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2017-15721"}],"summary":"In Irssi before 1.0.5, certain incorrectly formatted DCC CTCP messages could cause a NULL pointer dereference. This is a separate, but similar, issue relative to CVE-2017-9468."}