CVE-2026-41252

xrdp is an open source RDP server. Versions 0.10.6 and prior contain a missing bounds check in xrdp, which allows a heap-based buffer overflow when operating in vnc-any mode. The issue occurs during the handling of RFB protocol color map messages from a VNC server, where incoming color indices are not properly validated. A malicious VNC server can exploit this flaw by sending crafted messages with out-of-range values, leading to an out-of-bounds write on the heap. This memory corruption can result in a denial of service (DoS) or potentially allow remote code execution (RCE) prior to authentication. This issue has been fixed in version 0.10.6.1.

CVSS 3.1

9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS

1.1% chance of exploitation in the next 30 days; higher than 65% of CVEs (scores of 2026-10-25)

CWE

CWE-122

Published

2026-07-20

Modified

2026-10-24

Record from

the NVD, synced 2026-10-25

Affected

• neutrinolabs:xrdp

References

• https://github.com/neutrinolabs/xrdp/releases/tag/v0.10.6.1
• https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-w5vg-6qmv-j63j

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