USN-8432-1: FreeRDP vulnerabilities

Publication date

16 June 2026

Overview

Several security issues were fixed in FreeRDP.


Packages

  • freerdp2 - RDP client for Windows Terminal Services
  • freerdp3 - RDP client for Windows Terminal Services

Details

It was discovered that FreeRDP incorrectly handled memory under certain
circumstances, which could lead to an out-of-bounds heap write. An
attacker could possibly use this issue to cause a denial of service or
execute arbitrary code. (CVE-2026-45700)

In addition, this update fixes a regression introduced in USN-8105-1.
The update introduces a complete fix for CVE-2026-22858, CVE-2026-23732
and CVE-2026-25952 in Ubuntu 24.04 LTS and Ubuntu 25.10.

It was discovered that FreeRDP incorrectly handled memory under certain
circumstances, which could lead to an out-of-bounds heap write. An
attacker could possibly use this issue to cause a denial of service or
execute arbitrary code. (CVE-2026-45700)

In addition, this update fixes a regression introduced in USN-8105-1.
The update introduces a complete fix for CVE-2026-22858, CVE-2026-23732
and CVE-2026-25952 in Ubuntu 24.04 LTS and Ubuntu 25.10.

Update instructions

In general, a standard system update will make all the necessary changes.

Learn more about how to get the fixes.

The problem can be corrected by updating your system to the following package versions:

Ubuntu Release Package Version
26.04 LTS resolute freerdp-x11 –  3.24.2+dfsg-1ubuntu1.1
freerdp3-x11 –  3.24.2+dfsg-1ubuntu1.1
libfreerdp3-3 –  3.24.2+dfsg-1ubuntu1.1
25.10 questing freerdp3-x11 –  3.16.0+dfsg-2ubuntu0.5
libfreerdp3-3 –  3.16.0+dfsg-2ubuntu0.5
24.04 LTS noble freerdp2-x11 –  2.11.5+dfsg1-1ubuntu0.1~esm6  
freerdp3-x11 –  3.5.1+dfsg1-0ubuntu1.6
libfreerdp2-2t64 –  2.11.5+dfsg1-1ubuntu0.1~esm6  
libfreerdp3-3 –  3.5.1+dfsg1-0ubuntu1.6
22.04 LTS jammy freerdp2-x11 –  2.6.1+dfsg1-3ubuntu2.11
libfreerdp2-2 –  2.6.1+dfsg1-3ubuntu2.11
20.04 LTS focal freerdp2-x11 –  2.6.1+dfsg1-0ubuntu0.20.04.2+esm4  
libfreerdp2-2 –  2.6.1+dfsg1-0ubuntu0.20.04.2+esm4  
18.04 LTS bionic freerdp2-x11 –  2.2.0+dfsg1-0ubuntu0.18.04.4+esm6  
libfreerdp2-2 –  2.2.0+dfsg1-0ubuntu0.18.04.4+esm6  

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