What is CVE-2026-54538?

CVE-2026-54538 is a high-severity vulnerability in Neutrinolabs Xrdp, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 7.5/10. Published 2026-07-20.

How severe is CVE-2026-54538?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Neutrinolabs Xrdp

CVE-2026-54538

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 unauthenticate…

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Neutrinolabs Xrdp — versions < 0.10.6.1

Weakness classification (CWE)

CWE-835 — Loop with Unreachable Exit Condition (Infinite Loop)

References

security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-54538?: CVE-2026-54538 is a high-severity vulnerability in Neutrinolabs Xrdp, classified under Loop with Unreachable Exit Condition (Infinite Loop). CVSS score: 7.5/10. Published 2026-07-20.
How severe is CVE-2026-54538?: High severity. CVSS v3 base score is 7.5 out of 10.