{"action":"Upgrade icinga2 to 2.8.4-1 or later.","affected":[{"fixed":"2.8.4-1","introduced":"0"}],"component":"icinga2","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["2.8.4-1"],"id":"tcs_01M5NDG0Y2MSCZJEMHCKNS7F7M","modified_at":"2026-10-23T18:03:23.127057230Z","published_at":"2018-02-27T19:29:00.513Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2018-6534","https://security-tracker.debian.org/tracker/CVE-2018-6534"],"severity":{"label":"medium","score":6.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2018-6534","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2018-6534"}],"summary":"An issue was discovered in Icinga 2.x through 2.8.1. By sending specially crafted messages, an attacker can cause a NULL pointer dereference, which can cause the product to crash."}