xrdp is an open source RDP server. In versions 0.10.6 and prior, a n issue was discovered where the software fails to properly validate the totalLength field within the RDP protocol control header during packet reception. An unauthenticated remote attacker can exploit this vulnerability by sending a specially crafted packet that forces the xrdp process or thread into an infinite, CPU-bound loop. Because the internal pointer fails to advance and the deadlock prevention mechanism is bypassed for specific protocol data unit types, the process consumes excessive CPU resources indefinitely. This can render the xrdp service unavailable and potentially lead to system-wide resource exhaustion if multiple malicious connections are established. This issue has been fixed in version 0.10.6.1.
Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Mon, 20 Jul 2026 23:15:00 +0000
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Neutrinolabs
Neutrinolabs xrdp |
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| Vendors & Products |
Neutrinolabs
Neutrinolabs xrdp |
Mon, 20 Jul 2026 19:30:00 +0000
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ssvc
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Mon, 20 Jul 2026 17:15:00 +0000
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| Description | xrdp is an open source RDP server. In versions 0.10.6 and prior, a n issue was discovered where the software fails to properly validate the totalLength field within the RDP protocol control header during packet reception. An unauthenticated remote attacker can exploit this vulnerability by sending a specially crafted packet that forces the xrdp process or thread into an infinite, CPU-bound loop. Because the internal pointer fails to advance and the deadlock prevention mechanism is bypassed for specific protocol data unit types, the process consumes excessive CPU resources indefinitely. This can render the xrdp service unavailable and potentially lead to system-wide resource exhaustion if multiple malicious connections are established. This issue has been fixed in version 0.10.6.1. | |
| Title | xrdp: Pre-auth infinite loop via totalLength=0 in TS_SHARECONTROLHEADER | |
| Weaknesses | CWE-835 | |
| References |
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| Metrics |
cvssV3_1
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Projects
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-07-20T18:48:02.307Z
Reserved: 2026-06-15T18:40:01.652Z
Link: CVE-2026-54538
Updated: 2026-07-20T18:47:54.683Z
No data.
No data.
OpenCVE Enrichment
Updated: 2026-07-21T20:15:02Z
Weaknesses