Rapid7’s 2026 Global Cybersecurity Summit is now available on-demand.Watch sessions.
Rapid7

vulnerability

Rocky Linux: CVE-2021-41159: freerdp (RLSA-2021-4622)

Severity
7
CVSS
(AV:N/AC:M/Au:N/C:P/I:P/A:P)
Published
Oct 21, 2021
Added
May 5, 2022
Modified
Mar 31, 2026

Description

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP), released under the Apache license. All FreeRDP clients prior to version 2.4.1 using gateway connections (`/gt:rpc`) fail to validate input data. A malicious gateway might allow client memory to be written out of bounds. This issue has been resolved in version 2.4.1. If you are unable to update then use `/gt:http` rather than /gt:rdp connections if possible or use a direct connection without a gateway.

Solutions

rocky-upgrade-freerdprocky-upgrade-freerdp-debuginforocky-upgrade-freerdp-debugsourcerocky-upgrade-freerdp-develrocky-upgrade-freerdp-libsrocky-upgrade-freerdp-libs-debuginforocky-upgrade-libwinprrocky-upgrade-libwinpr-debuginforocky-upgrade-libwinpr-devel
Title
Rapid7 Labs

2026 Global Threat Landscape Report

The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.