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Description

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.

PUBLISHED Reserved 2026-03-23 | Published 2026-04-17 | Updated 2026-04-20 | Assigner GitHub_M




HIGH: 8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

Problem types

CWE-125: Out-of-bounds Read

Product status

< 0.10.6
affected

References

github.com/...s/xrdp/security/advisories/GHSA-92mr-6wpp-27jj

github.com/neutrinolabs/xrdp/releases/tag/v0.10.6

cve.org (CVE-2026-33689)

nvd.nist.gov (CVE-2026-33689)

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