CVE-2026-22859

CRITICAL

FreeRDP < 3.20.1 - Out-of-bounds Read in URBDRC Client

Title source: llm
STIX 2.1

Description

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.

References (19)

Core 19
Core References

Scores

CVSS v3 9.1
EPSS 0.0076
EPSS Percentile 51.5%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-125 CWE-129
Status published
Products (2)
freerdp/freerdp < 3.20.1
FreeRDP/FreeRDP < 3.20.1
Published Jan 14, 2026
Tracked Since Feb 18, 2026