Vulnerability DatabaseCVE-2026-22859
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CVE-2026-22859
January 14, 2026
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.20.1, the URBDRC client does not perform bounds checking on server‑supplied MSUSB_INTERFACE_DESCRIPTOR values and uses them as indices in libusb_udev_complete_msconfig_setup, causing an out‑of‑bounds read. This vulnerability is fixed in 3.20.1.
Affected Packages
https://github.com/FreeRDP/FreeRDP.git (GITHUB):
Affected version(s) >=1.0-beta1 <3.20.1
Fix Suggestion:
Update to version 3.20.1
Related Resources (2)
https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-56f5-76qv-2r36
https://github.com/FreeRDP/FreeRDP/releases/tag/3.20.1
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CVSS v4
Base Score:
5.6
Attack Vector
NETWORK
Attack Complexity
HIGH
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
HIGH
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
Exploit Maturity
POC
CVSS v3
Base Score:
6.8
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Improper Validation of Array Index
CWE-129
Out-of-bounds Read
CWE-125
EPSS
Base Score:
0.06