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CVE-2026-41252

CRITICAL
9.8
CVSS 3.1
Description
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.

Metadata

CVE ID
CVE-2026-41252
State
PUBLISHED
Assigner
GitHub_M
Reserved
2026-04-18 03:47 UTC
Published
2026-07-20 16:29 UTC
Last updated
2026-07-20 18:00 UTC
Primary CWE
CWE-122
CWE-122: Heap-based Buffer Overflow
Vendor / Product
neutrinolabs / xrdp
Sources
cve.org  ·  NVD

Severity & Metrics

9.8 CRITICAL CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC — CISA Coordinator
Exploitation
none
Automatable
yes
Tech. Impact
total
Affected products (1)
VendorProductPlatformVersions
neutrinolabs xrdp — < 0.10.6.1
Weakness (CWE)
CWESourceDescription
CWE-122 cna CWE-122: Heap-based Buffer Overflow
CVSS scores (1)
ScoreSeverityVersionSourceVector
9.8 CRITICAL 3.1 cna CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References (2)
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