{"id":"DEBIAN-CVE-2026-48840","details":"Exim 4.88 before 4.99.4, in some proxy configurations, mishandles certain short payloads, leading to disclosure of uninitialized stack memory values to a client.","modified":"2026-09-14T17:03:16.714180500Z","published":"2026-05-30T02:16:19.790Z","upstream":["CVE-2026-48840"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-48840"}],"affected":[{"package":{"name":"exim4","ecosystem":"Debian:12","purl":"pkg:deb/debian/exim4?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.96-15+deb12u10"}]}],"versions":["4.96-15","4.96-15+deb12u1","4.96-15+deb12u2","4.96-15+deb12u3","4.96-15+deb12u4","4.96-15+deb12u5","4.96-15+deb12u6","4.96-15+deb12u7","4.96-15+deb12u8","4.96-15+deb12u9"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-48840.json"}},{"package":{"name":"exim4","ecosystem":"Debian:13","purl":"pkg:deb/debian/exim4?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.98.2-1+deb13u3"}]}],"versions":["4.98.2-1","4.98.2-1+deb13u1","4.98.2-1+deb13u2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-48840.json"}},{"package":{"name":"exim4","ecosystem":"Debian:14","purl":"pkg:deb/debian/exim4?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.99.3-2"}]}],"versions":["4.98.2-1","4.98.2-1+hurd.1","4.98.2-2","4.99-1","4.99-2","4.99-3","4.99-4","4.99-4~bpo13+1","4.99-5","4.99-6","4.99-6~bpo13+1","4.99-7","4.99-7~bpo13+1","4.99.1-1","4.99.1-1~bpo13+1","4.99.1-2","4.99.1-3","4.99.1-4","4.99.1-5","4.99.1-6","4.99.2-1","4.99.2-1~bpo13+1","4.99.2-2","4.99.2-2~bpo13+1","4.99.3-1","4.99.3-2~bpo13+1","4.99~RC1-1","4.99~RC2-1","4.99~RC3-1","4.99~RC3-2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-48840.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:L/I:N/A:N"}]}