Vulnerability Description
xrdp is an open source RDP server. In versions through 0.10.5, xrdp does not implement verification for the Message Authentication Code (MAC) signature of encrypted RDP packets when using the "Classic RDP Security" layer. While the sender correctly generates signatures, the receiving logic lacks the necessary implementation to validate the 8-byte integrity signature, causing it to be silently ignored. An unauthenticated attacker with man-in-the-middle (MITM) capabilities can exploit this missing check to modify encrypted traffic in transit without detection. It does not affect connections where the TLS security layer is enforced. This issue has been fixed in version 0.10.6. If users are unable to immediately upgrade, they should configure xrdp.ini to enforce TLS security (security_layer=tls) to ensure end-to-end integrity.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Neutrinolabs | Xrdp | < 0.10.6 |
Related Weaknesses (CWE)
References
- https://github.com/neutrinolabs/xrdp/releases/tag/v0.10.6PatchRelease Notes
- https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-j2jm-c596-c5q3Vendor Advisory
FAQ
What is CVE-2026-32105?
CVE-2026-32105 is a vulnerability with a CVSS score of 7.7 (HIGH). xrdp is an open source RDP server. In versions through 0.10.5, xrdp does not implement verification for the Message Authentication Code (MAC) signature of encrypted RDP packets when using the "Classic...
How severe is CVE-2026-32105?
CVE-2026-32105 has been rated HIGH with a CVSS base score of 7.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-32105?
Check the references section above for vendor advisories and patch information. Affected products include: Neutrinolabs Xrdp.