{"id":"DEBIAN-CVE-2026-43964","details":"Postfix before 3.8.16, 3.9 before 3.9.10, and 3.10 before 3.10.9 sometimes allows a buffer over-read and process crash via an enhanced status code that lacks text after the third number.","modified":"2026-09-14T17:03:13.236408457Z","published":"2026-05-04T19:16:07.143Z","upstream":["CVE-2026-43964"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-43964"}],"affected":[{"package":{"name":"postfix","ecosystem":"Debian:12","purl":"pkg:deb/debian/postfix?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.10.1-1","3.10.2-1","3.10.3-1","3.10.3-2","3.10.3-2~bpo12+1","3.10.3-3","3.10.4-1","3.10.4-1~deb13u1","3.10.4-2","3.10.4-3","3.10.5-1","3.10.5-1~deb13u1","3.10.5-2","3.10.5-3","3.10.6-1","3.10.6-3","3.10.6-4","3.10.8-1","3.11.0-1","3.11.0-2","3.11.0-3","3.11.0-4","3.11.2-1","3.11.2-2","3.11.2-3","3.11.2-4","3.11.3-1","3.11.3-2","3.11.4-1","3.11.4-2","3.11.5-1","3.11.6-1","3.11.7-1","3.7.10-0+deb12u1","3.7.11-0+deb12u1","3.7.5-2","3.7.6-0+deb12u1","3.7.6-0+deb12u2","3.7.9-0+deb12u1","3.8.1-1","3.8.1-2","3.8.2-1","3.8.3-1","3.8.4-1","3.8.5-1","3.8.6-1","3.9.0-1","3.9.0-1~exp1","3.9.0-2","3.9.0-3","3.9.0-4","3.9.1-1","3.9.1-10","3.9.1-2","3.9.1-3","3.9.1-4","3.9.1-5","3.9.1-6","3.9.1-7","3.9.1-8","3.9.1-9"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-43964.json"}},{"package":{"name":"postfix","ecosystem":"Debian:13","purl":"pkg:deb/debian/postfix?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.10.10-0+deb13u1"}]}],"versions":["3.10.3-2","3.10.3-3","3.10.4-1","3.10.4-1~deb13u1","3.10.4-2","3.10.4-3","3.10.5-1","3.10.5-1~deb13u1","3.10.5-2","3.10.5-3","3.10.6-1","3.10.6-3","3.10.6-4","3.10.8-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-43964.json"}},{"package":{"name":"postfix","ecosystem":"Debian:14","purl":"pkg:deb/debian/postfix?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.11.2-1"}]}],"versions":["3.10.3-2","3.10.3-3","3.10.4-1","3.10.4-1~deb13u1","3.10.4-2","3.10.4-3","3.10.5-1","3.10.5-1~deb13u1","3.10.5-2","3.10.5-3","3.10.6-1","3.10.6-3","3.10.6-4","3.10.8-1","3.11.0-1","3.11.0-2","3.11.0-3","3.11.0-4"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-43964.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}