xrdp: Pre-authentication out-of-bounds reads in RDP capability and channel parsers
Summary
xrdp: Pre-authentication out-of-bounds reads in RDP capability and channel parsers
Original description
The description as published by the source.
xrdp is an open source RDP server. Versions through 0.10.5 contain an out-of-bounds read vulnerability during the RDP capability exchange phase. The issue occurs when memory is accessed before validating the remaining buffer length. A remote, unauthenticated attacker can trigger this vulnerability by sending a specially crafted Confirm Active PDU. Successful exploitation could lead to a denial of service (process crash) or potential disclosure of sensitive information from the process memory. This issue has been fixed in version 0.10.6.
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Debian DEBIAN-CVE-2026-33516 xrdp
- Ubuntu UBUNTU-CVE-2026-33516 xrdp
References
- advisory github.com
- advisory github.com
- advisory nvd.nist.gov
- web github.com