Loop with Unreachable Exit Condition ('Infinite Loop') Affecting xrdp package, versions <0.10.6.1-2
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-DEBIANUNSTABLE-XRDP-17894892
- published8 Jul 2026
- disclosed20 Jul 2026
Introduced: 8 Jul 2026
CVE-2026-54538 (opens in a new tab)How to fix?
Upgrade Debian:unstable xrdp to version 0.10.6.1-2 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream xrdp package and not the xrdp package as distributed by Debian.
See How to fix? for Debian:unstable relevant fixed versions and status.
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.