CVE-2026-32623: xrdp is an open source RDP server. Versions through 0.10.5 contain a heap-based buffer overflow vulnerability in the…
CVE-2026-32623 · Severity: high · CVSS 8.1 · Published 2026-04-17
xrdp is an open source RDP server. Versions through 0.10.5 contain a heap-based buffer overflow vulnerability in the NeutrinoRDP module. When proxying RDP sessions from xrdp to another server, the module fails to properly validate the size of reassembled fragmented virtual channel data against its allocated memory buffer. A malicious downstream RDP server (or an attacker capable of performing a Man-in-the-Middle attack) could exploit this flaw to cause memory corruption, potentially leading to a Denial of Service (DoS) or Remote Code Execution (RCE). The NeutrinoRDP module is not built by default. This vulnerability only affects environments where the module has been explicitly compiled and enabled. Users can verify if the module is built by checking for --enable-neutrinordp in the output of the xrdp -v command. This issue has been fixed in version 0.10.6.
No. Junglewise Threat Intelligence has no report of CVE-2026-32623 being exploited in the wild.
How severe is CVE-2026-32623?
High severity, with a CVSS score of 8.1, published 17 April 2026.
Which products and versions are affected?
Neutrinolabs Xrdp. The advisory does not name versions.
Is there a fix for CVE-2026-32623?
No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
Am I affected by CVE-2026-32623?
Check whether you run Neutrinolabs Xrdp. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.