CVE-2026-32623

xrdp: xrdp is an open source RDP server

CVE-2026-32623 is fixed in xrdp on 1 platform, first by DEBIAN-CVE-2026-32623, released April 17, 2026. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
8.1
high
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0054
45th percentile

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.

Where it's fixed

ProductFixed inFixReleased
Linux
xrdp · Debian 12.15 (bookworm) 0.9.21.1-1+deb12u3 DEBIAN-CVE-2026-32623 Apr 17, 2026
xrdp · Debian 13.5 (trixie) 0.10.1-3.1+deb13u2 DEBIAN-CVE-2026-32623 Apr 17, 2026
xrdp · Debian 14 0.10.6-1 DEBIAN-CVE-2026-32623 Apr 17, 2026

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