{"id":"DEBIAN-CVE-2026-55645","details":"xrdp is an open source RDP server. Versions 0.10.6 and prior contain a vulnerability concerning the processing of Client Control PDUs. During the RDP connection sequence, the parser does not perform sufficient length validation before reading specific data fields from the network stream. A remote, unauthenticated attacker could potentially exploit this flaw by sending a specially crafted, truncated Client Control PDU. Due to missing bounds checks, the xrdp process may perform out-of-bounds memory reads, which can result in the termination of the service (Denial of Service). However, since xrdp forks a new process for each connection by default, an out-of-bounds read causing a process crash is unlikely to bring down the entire xrdp service.This issue has been fixed in version 0.10.6.1.","modified":"2026-09-14T17:03:45.785167510Z","published":"2026-07-20T17:18:07.430Z","upstream":["CVE-2026-55645"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-55645"}],"affected":[{"package":{"name":"xrdp","ecosystem":"Debian:12","purl":"pkg:deb/debian/xrdp?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.9.21.1-1+deb12u3"}]}],"versions":["0.9.21.1-1","0.9.21.1-1+deb12u1","0.9.21.1-1+deb12u2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-55645.json"}},{"package":{"name":"xrdp","ecosystem":"Debian:13","purl":"pkg:deb/debian/xrdp?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.10.1-3.1+deb13u2"}]}],"versions":["0.10.1-3.1","0.10.1-3.1+deb13u1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-55645.json"}},{"package":{"name":"xrdp","ecosystem":"Debian:14","purl":"pkg:deb/debian/xrdp?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.10.6.1-2"}]}],"versions":["0.10.1-3.1","0.10.1-4","0.10.1-4.1","0.10.2-1","0.10.2-2","0.10.4.1-1","0.10.4.1-2","0.10.5-1","0.10.5-2","0.10.5-3","0.10.5-4","0.10.5-5","0.10.6-1","0.10.6-2","0.10.6-3","0.10.6-4","0.10.6-5","0.10.6.1-1","0.10.6.1-2~bpo13+1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-55645.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:L"}]}