{"id":"DEBIAN-CVE-2026-39864","details":"Kamailio is an open source implementation of a SIP Signaling Server. Prior to 6.0.5 and 5.8.7, an out-of-bounds read in the auth module of Kamailio (formerly OpenSER and SER) allows remote attackers to cause a denial of service (process crash) via a specially crafted SIP packet if a successful user authentication without a database backend is followed by additional user identity checks. This vulnerability is fixed in 6.0.5 and 5.8.7.","modified":"2026-09-14T17:03:32.138894306Z","published":"2026-04-08T20:16:26.700Z","upstream":["CVE-2026-39864"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-39864"}],"affected":[{"package":{"name":"kamailio","ecosystem":"Debian:12","purl":"pkg:deb/debian/kamailio?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["5.6.3-2","5.6.4-1","5.7.0-1","5.7.2-1","5.7.3-1","5.7.4-1","5.8.2-2","5.8.2-3","5.8.2-4","5.8.3-1","5.8.4-1","5.8.5-1","6.0.0-1","6.0.1-1","6.0.2-1","6.0.2-2","6.0.2-3","6.0.3-1","6.0.3-2","6.0.3-3","6.0.4-1","6.0.5-1","6.1.1-2","6.1.1-2.1","6.1.2-1","6.1.3-1","6.1.3-2","6.1.4-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-39864.json"}},{"package":{"name":"kamailio","ecosystem":"Debian:13","purl":"pkg:deb/debian/kamailio?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.0.1-1+deb13u2"}]}],"versions":["6.0.1-1","6.0.1-1+deb13u1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-39864.json"}},{"package":{"name":"kamailio","ecosystem":"Debian:14","purl":"pkg:deb/debian/kamailio?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"6.0.5-1"}]}],"versions":["6.0.1-1","6.0.2-1","6.0.2-2","6.0.2-3","6.0.3-1","6.0.3-2","6.0.3-3","6.0.4-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-39864.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H"}]}