Critical Remote Code Execution Vulnerability in FreeRDP Packages
Summary
ALSA-2026:50747: Important: freerdp security update. Affects freerdp versions < 2:3.10.3-12.el10_2.7. Fixed in 2:3.10.3-12.el10_2.7. How to fix ↓
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Background
FreeRDP is an open-source implementation of the Remote Desktop Protocol (RDP), allowing users to connect to remote servers and desktops, including Microsoft Windows machines and VirtualBox. It is widely used for remote access in various environments. The recent vulnerability affects multiple FreeRDP packages, including freerdp, freerdp-devel, freerdp-libs, freerdp-server, libwinpr, and libwinpr-devel, which are essential for RDP functionalities.
Vulnerability Detail
The vulnerability identified as CVE-2026-55827 involves a remote code execution risk due to a heap out-of-bounds write during RemoteFX decoding in FreeRDP. This flaw can be exploited by an attacker to execute arbitrary code on the affected system, potentially leading to unauthorized access and control over the system. The vulnerability arises from improper handling of memory, which allows attackers to manipulate the heap memory structure.
How To Fix
Minimum fixed version
2:3.10.3-12.el10_2.7
This is the first release that contains the fix.
sudo dnf update freerdpTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
If immediate updating is not feasible, consider restricting access to the FreeRDP services or disabling RemoteFX features until the patch can be applied. Additionally, monitor network traffic for any suspicious activities related to RDP connections.
Conclusion
The vulnerability in FreeRDP presents a significant risk to systems utilizing this software for remote desktop connections. By updating to the latest patched versions of the affected packages, users can mitigate the risk of exploitation. Regular monitoring and updates are crucial for maintaining system security.
See every vulnerability recorded for freerdp →
FAQ
FreeRDP is an open-source implementation of the Remote Desktop Protocol (RDP) that allows users to connect to remote desktops and servers.
CVE-2026-55827 refers to a critical vulnerability in FreeRDP that allows remote code execution due to a heap out-of-bounds write.
You can use the Vulert playground at Vulert Scanner to check if your application is affected by this vulnerability without needing to sign up.
Failing to fix this vulnerability could allow attackers to execute arbitrary code on your system, leading to potential data breaches and unauthorized access.
It is recommended to regularly check for and apply updates to your packages to protect against known vulnerabilities and security risks.
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