{"action":"Upgrade xymon to 4.3.25-1 or later.","affected":[{"fixed":"4.3.25-1","introduced":"0"}],"component":"xymon","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["4.3.25-1"],"id":"tcs_01M5NBGCNTDPZ652HYPZPTKZF3","modified_at":"2026-09-22T07:02:56.000023506Z","published_at":"2016-04-13T16:59:06.550Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2016-2056","https://security-tracker.debian.org/tracker/CVE-2016-2056"],"severity":{"label":"high","score":8.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2016-2056","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2016-2056"}],"summary":"xymond in Xymon 4.1.x, 4.2.x, and 4.3.x before 4.3.25 allow remote authenticated users to execute arbitrary commands via shell metacharacters in the adduser_name argument in (1) web/useradm.c or (2) w"}