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CVE-2026-55626

xrdp: No authentication required with Xvnc backend on RHEL 9

Published: Jul 20, 2026Updated: Jul 28, 2026 Sources: CVE List NVDCWE-287
8.0HIGH
NVD MITRE
EPSS Score
0.1%
Top 97.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

xrdp is an open source RDP server. In versions 0.10.6 and prior, when an authenticated user session is initialized using the Xvnc backend over UNIX domain sockets, the Xvnc process is launched with insufficient authentication mechanisms. A local authenticated attacker could exploit this vulnerability to bypass intended session isolation, allowing them to unauthorizedly view or control the active desktop sessions of other users on the same system. Users using other backends, such as xorgxrdp or Xvnc over TCP sockets, are not affected. This issue has been fixed in version 0.10.6.1.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:LAC:LPR:NUI:NS:UC:HI:HA:L
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:LAvailability
Low
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Weaknesses

CWE-287CWE-306

Affected Products

neutrinolabs
oss-project
xrdpOn-prem
Networking Infrastructure / network-management

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Initial Access
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References

https://github.com/neutrinolabs/xrdp/security/advisories/GHSA-m3xx-cpc4-982r
github.com
https://github.com/neutrinolabs/xrdp/releases/tag/v0.10.6.1
github.com

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