CVE-2026-32105

xrdp: xrdp is an open source RDP server

CVE-2026-32105 is fixed in xrdp on 1 platform, first by DEBIAN-CVE-2026-32105, released April 17, 2026. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
7.7
high
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0017
6th percentile

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.

Where it's fixed

ProductFixed inFixReleased
Linux
xrdp · Debian 12.15 (bookworm) 0.9.21.1-1+deb12u3 DEBIAN-CVE-2026-32105 Apr 17, 2026
xrdp · Debian 13.5 (trixie) 0.10.1-3.1+deb13u2 DEBIAN-CVE-2026-32105 Apr 17, 2026
xrdp · Debian 14 0.10.6-1 DEBIAN-CVE-2026-32105 Apr 17, 2026

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