{"action":"Upgrade sendmail to 8.17.1.9-2+deb12u1 or later.","affected":[{"fixed":"8.17.1.9-2+deb12u1","introduced":"0"}],"component":"sendmail","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["8.17.1.9-2+deb12u1"],"id":"tcs_01M5NJEP3CZJHE2MZ57R0J7PBD","modified_at":"2026-10-26T18:01:56.628042421Z","published_at":"2023-12-24T06:15:07.527Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2023-51765","https://security-tracker.debian.org/tracker/CVE-2023-51765"],"severity":{"label":"medium","score":5.3},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2023-51765","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2023-51765"}],"summary":"sendmail through 8.17.2 allows SMTP smuggling in certain configurations. Remote attackers can use a published exploitation technique to inject e-mail messages with a spoofed MAIL FROM address, allowin"}