CVE-2026-32105 Details
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.
A vulnerability exists in xrdp versions prior to 0.10.6, where the server fails to verify the Message Authentication Code (MAC) signature of encrypted RDP packets under the 'Classic RDP Security' layer. Although the sender correctly generates the signatures, the receiving side does not implement the necessary validation for the 8-byte integrity signature, allowing an unauthenticated attacker with man-in-the-middle capabilities to modify the encrypted traffic in transit without detection. This issue does not affect connections using the TLS security layer.
Users are advised to upgrade to xrdp version 0.10.6. If an immediate upgrade is not possible, xrdp can be configured to enforce TLS security by setting 'security_layer=tls' in the xrdp.ini file.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Apr 20, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/neutrinolabs/xrdp/releases/tag/v0.10.6 | [email protected] | PatchRelease Notes |
| https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-j2jm-c596-c5q3 | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-354 | Improper Validation of Integrity Check Value | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| neutrinolabs xrdp | < 0.10.6 |
CPE
Remediation
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Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 27, 2026 | Initial Analysis | [email protected] |
| Apr 17, 2026 | New CVE Received | [email protected] |