CVE-2026-27951
Published:February 25, 2026
Updated:April 23, 2026
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, the function "Stream_EnsureCapacity" can create an endless blocking loop. This may affect all client and server implementations using "FreeRDP". For practical exploitation this will only work on 32bit systems where the available physical memory is ">= SIZE_MAX". Version 3.23.0 contains a patch. No known workarounds are available.
Affected Packages
https://github.com/FreeRDP/FreeRDP.git (GITHUB):
Affected version(s) >=2.11.0 <2.11.8Fix Suggestion:
Update to version 2.11.8https://github.com/FreeRDP/FreeRDP.git (GITHUB):
Affected version(s) >=3.0.0 <3.23.0Fix Suggestion:
Update to version 3.23.0Related Resources (2)
Do you need more information?
Contact UsCVSS v4
Base Score:
6.9
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
LOW
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
LOW
Weakness Type (CWE)
Integer Overflow or Wraparound
EPSS
Base Score:
0.08
