CRITICAL: CVE-2026-33689 (CVSS 9.1) — neutrinolabs xrdp

CVE: CVE-2026-33689

CVSS: 9.1 (3.1) — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

Severity: CRITICAL

Status: Critical advisory

Affected

neutrinolabs xrdp

Summary

xrdp is an open source RDP server. Versions through 0.10.5 have an out-of-bounds read vulnerability in the pre-authentication RDP message parsing logic. A remote, unauthenticated attacker can trigger this flaw by sending a specially crafted sequence of packets during the initial connection phase. This vulnerability results from insufficient validation of input buffer lengths before processing dynamic channel communication. Successful exploitation can lead to a denial-of-service (DoS) condition via a process crash or potential disclosure of sensitive information from the service's memory space. This issue has been fixed in version 0.10.6.

Verified Sources

References

https://github.com/neutrinolabs/xrdp/releases/tag/v0.10.6
https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-92mr-6wpp-27jj

_Validated by the Lyrie Threat Intelligence Pipeline — 3 independent sources confirmed before publication. No speculation._

Lyrie Verdict

A vulnerability of this severity is exactly what Lyrie's anti-rogue-AI defense is built for: continuous, autonomous monitoring that doesn't wait for human reaction time.

#neutrinolabs #critical