{"id":"CVE-2026-33689","summary":"xrdp: Pre-authentication out-of-bounds reads in channel parsers","details":"xrdp is an open source RDP server. Versions through 0.10.5 have an out-of-bounds read vulnerability in the pre-authentication RDP message parsing logic. A remote, unauthenticated attacker can trigger this flaw by sending a specially crafted sequence of packets during the initial connection phase. This vulnerability results from insufficient validation of input buffer lengths before processing dynamic channel communication. Successful exploitation can lead to a denial-of-service (DoS) condition via a process crash or potential disclosure of sensitive information from the service's memory space. This issue has been fixed in version 0.10.6.","aliases":["GHSA-92mr-6wpp-27jj"],"modified":"2026-07-15T01:49:05.614183302Z","published":"2026-04-17T20:16:31.248Z","related":["openSUSE-SU-2026:10816-1"],"database_specific":{"cna_assigner":"GitHub_M","cwe_ids":["CWE-125"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33689.json"},"references":[{"type":"WEB","url":"https://github.com/neutrinolabs/xrdp/releases/tag/v0.10.6"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33689.json"},{"type":"ADVISORY","url":"https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-92mr-6wpp-27jj"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-33689"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/neutrinolabs/xrdp","events":[{"introduced":"0"},{"fixed":"440a538149561ec8e8e57552ab8f2e0e3f273cd5"}],"database_specific":{"cpe":"cpe:2.3:a:neutrinolabs:xrdp:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"0.10.6"}],"source":["AFFECTED_FIELD","CPE_RANGE","REFERENCES"]}}],"versions":["v0.10.5","v0.10.4.1","v0.10.4","v0.10.3","v0.10.2","v0.10.2-rc.1","v0.10.1","v0.10.0","v0.10.0-beta.3","v0.10.0-beta.2","v0.10.0-beta.1","v0.9.18","v0.9.17","v0.9.16","v0.9.15","v0.9.14","v0.9.13","v0.9.12","v0.9.11","v0.9.10","v0.9.9","v0.9.8","v0.9.7","v0.9.6","v0.9.5","v0.9.4","v0.9.4.rc1","v0.9.3","v0.9.3.rc1","v0.9.2"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-33689.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"}]}