{"action":"Upgrade dovecot to 1:2.4.5+dfsg1-1 or later.","affected":[{"fixed":"1:2.4.5+dfsg1-1","introduced":"0"}],"component":"dovecot","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["1:2.4.5+dfsg1-1"],"id":"tcs_01M5NRQGSR0BJG0NZ3GK5SHDS6","modified_at":"2026-10-31T16:04:23.094349159Z","published_at":"2026-08-28T12:16:27.483Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-33263","https://security-tracker.debian.org/tracker/CVE-2026-33263"],"severity":{"label":"medium","score":4.3},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-33263#Debian:14/dovecot","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-33263"}],"summary":"When mail_max_userip_connections is set (default 10) and reached, submission-login can crash with epoll() panic caused by file descriptor handling issues. If running in high-security mode (default for"}