# CVE-2026-22857: libfreerdp-client3-3: FreeRDP is a free implementation of the Remote Desktop Protocol

CVE-2026-22857 is fixed in 18 products on 1 platform, first by freerdp3-proxy 3.20.2+dfsg-1, released January 14, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-22857
- Priority: High
- CVSS: 9.8 (Medium)
- EPSS: 0.0053
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Jan 14, 2026

## Description

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.20.1, a heap use-after-free occurs in irp_thread_func because the IRP is freed by irp->Complete() and then accessed again on the error path. This vulnerability is fixed in 3.20.1.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | freerdp opensuse-leap 15.6 | 2.11.2-150600.4.12.1 | [SUSE-SU-2026:0761-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-0761-1.md) | Mar 3, 2026 |
| Linux | freerdp opensuse-leap 16.0 | 3.22.0-160000.1.1 | [OPENSUSE-SU-2026:20339-1](https://patchblox.com/security/data/fix/linux/opensuse-su-2026-20339-1.md) | Mar 10, 2026 |
| Linux | freerdp sles 15.7 | 2.11.2-150600.4.12.1 | [SUSE-SU-2026:0761-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-0761-1.md) | Mar 3, 2026 |
| Linux | freerdp2 sles 15.7 | 2.11.7-150700.3.8.1 | [SUSE-SU-2026:0683-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-0683-1.md) | Feb 27, 2026 |
| Linux | freerdp3 Debian 13.5 (trixie) | 3.15.0+dfsg-2.1+deb13u1 | [DEBIAN-CVE-2026-22857](https://patchblox.com/security/data/fix/linux/debian-cve-2026-22857.md) | Jan 14, 2026 |
| Linux | freerdp3 Debian 14 | 3.20.2+dfsg-1 | [DEBIAN-CVE-2026-22857](https://patchblox.com/security/data/fix/linux/debian-cve-2026-22857.md) | Jan 14, 2026 |
| Linux | freerdp3-proxy Ubuntu 25.10 (questing) | 3.16.0+dfsg-2ubuntu0.3 | [freerdp3-proxy 3.16.0+dfsg-2ubuntu0.3](https://patchblox.com/security/data/fix/linux/ubuntu-questing-freerdp3-proxy-3.16.0-dfsg-2ubuntu0.3.md) | Feb 25, 2026 |
| Linux | freerdp3-proxy Ubuntu 26.04.1 LTS (resolute) | 3.20.2+dfsg-1 | [freerdp3-proxy 3.20.2+dfsg-1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-freerdp3-proxy-3.20.2-dfsg-1.md) | Jan 14, 2026 |
| Linux | freerdp3-proxy-modules Ubuntu 25.10 (questing) | 3.16.0+dfsg-2ubuntu0.3 | [freerdp3-proxy-modules 3.16.0+dfsg-2ubuntu0.3](https://patchblox.com/security/data/fix/linux/ubuntu-questing-freerdp3-proxy-modules-3.16.0-dfsg-2ubuntu0.3.md) | Feb 25, 2026 |
| Linux | freerdp3-proxy-modules Ubuntu 26.04.1 LTS (resolute) | 3.20.2+dfsg-1 | [freerdp3-proxy-modules 3.20.2+dfsg-1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-freerdp3-proxy-modules-3.20.2-dfsg-1.md) | Jan 14, 2026 |
| Linux | freerdp3-sdl Ubuntu 25.10 (questing) | 3.16.0+dfsg-2ubuntu0.3 | [freerdp3-sdl 3.16.0+dfsg-2ubuntu0.3](https://patchblox.com/security/data/fix/linux/ubuntu-questing-freerdp3-sdl-3.16.0-dfsg-2ubuntu0.3.md) | Feb 25, 2026 |
| Linux | freerdp3-sdl Ubuntu 26.04.1 LTS (resolute) | 3.20.2+dfsg-1 | [freerdp3-sdl 3.20.2+dfsg-1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-freerdp3-sdl-3.20.2-dfsg-1.md) | Jan 14, 2026 |
| Linux | freerdp3-shadow-x11 Ubuntu 24.04.5 LTS (noble) | 3.5.1+dfsg1-0ubuntu1.4 | [freerdp3-shadow-x11 3.5.1+dfsg1-0ubuntu1.4](https://patchblox.com/security/data/fix/linux/ubuntu-noble-freerdp3-shadow-x11-3.5.1-dfsg1-0ubuntu1.4.md) | Feb 25, 2026 |
| Linux | freerdp3-shadow-x11 Ubuntu 25.10 (questing) | 3.16.0+dfsg-2ubuntu0.3 | [freerdp3-shadow-x11 3.16.0+dfsg-2ubuntu0.3](https://patchblox.com/security/data/fix/linux/ubuntu-questing-freerdp3-shadow-x11-3.16.0-dfsg-2ubuntu0.3.md) | Feb 25, 2026 |
| Linux | freerdp3-shadow-x11 Ubuntu 26.04.1 LTS (resolute) | 3.20.2+dfsg-1 | [freerdp3-shadow-x11 3.20.2+dfsg-1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-freerdp3-shadow-x11-3.20.2-dfsg-1.md) | Jan 14, 2026 |
| Linux | freerdp3-wayland Ubuntu 24.04.5 LTS (noble) | 3.5.1+dfsg1-0ubuntu1.4 | [freerdp3-wayland 3.5.1+dfsg1-0ubuntu1.4](https://patchblox.com/security/data/fix/linux/ubuntu-noble-freerdp3-wayland-3.5.1-dfsg1-0ubuntu1.4.md) | Feb 25, 2026 |
| Linux | freerdp3-wayland Ubuntu 25.10 (questing) | 3.16.0+dfsg-2ubuntu0.3 | [freerdp3-wayland 3.16.0+dfsg-2ubuntu0.3](https://patchblox.com/security/data/fix/linux/ubuntu-questing-freerdp3-wayland-3.16.0-dfsg-2ubuntu0.3.md) | Feb 25, 2026 |
| Linux | freerdp3-wayland Ubuntu 26.04.1 LTS (resolute) | 3.20.2+dfsg-1 | [freerdp3-wayland 3.20.2+dfsg-1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-freerdp3-wayland-3.20.2-dfsg-1.md) | Jan 14, 2026 |
| Linux | freerdp3-x11 Ubuntu 24.04.5 LTS (noble) | 3.5.1+dfsg1-0ubuntu1.4 | [freerdp3-x11 3.5.1+dfsg1-0ubuntu1.4](https://patchblox.com/security/data/fix/linux/ubuntu-noble-freerdp3-x11-3.5.1-dfsg1-0ubuntu1.4.md) | Feb 25, 2026 |
| Linux | freerdp3-x11 Ubuntu 25.10 (questing) | 3.16.0+dfsg-2ubuntu0.3 | [freerdp3-x11 3.16.0+dfsg-2ubuntu0.3](https://patchblox.com/security/data/fix/linux/ubuntu-questing-freerdp3-x11-3.16.0-dfsg-2ubuntu0.3.md) | Feb 25, 2026 |
| Linux | freerdp3-x11 Ubuntu 26.04.1 LTS (resolute) | 3.20.2+dfsg-1 | [freerdp3-x11 3.20.2+dfsg-1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-freerdp3-x11-3.20.2-dfsg-1.md) | Jan 14, 2026 |
| Linux | libfreerdp-client3-3 Ubuntu 24.04.5 LTS (noble) | 3.5.1+dfsg1-0ubuntu1.4 | [libfreerdp-client3-3 3.5.1+dfsg1-0ubuntu1.4](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libfreerdp-client3-3-3.5.1-dfsg1-0ubuntu1.4.md) | Feb 25, 2026 |
| Linux | libfreerdp-client3-3 Ubuntu 25.10 (questing) | 3.16.0+dfsg-2ubuntu0.3 | [libfreerdp-client3-3 3.16.0+dfsg-2ubuntu0.3](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libfreerdp-client3-3-3.16.0-dfsg-2ubuntu0.3.md) | Feb 25, 2026 |
| Linux | libfreerdp-client3-3 Ubuntu 26.04.1 LTS (resolute) | 3.20.2+dfsg-1 | [libfreerdp-client3-3 3.20.2+dfsg-1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libfreerdp-client3-3-3.20.2-dfsg-1.md) | Jan 14, 2026 |
| Linux | libfreerdp-server-proxy3-3 Ubuntu 25.10 (questing) | 3.16.0+dfsg-2ubuntu0.3 | [libfreerdp-server-proxy3-3 3.16.0+dfsg-2ubuntu0.3](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libfreerdp-server-proxy3-3-3.16.0-dfsg-2ubuntu0.3.md) | Feb 25, 2026 |
| Linux | libfreerdp-server-proxy3-3 Ubuntu 26.04.1 LTS (resolute) | 3.20.2+dfsg-1 | [libfreerdp-server-proxy3-3 3.20.2+dfsg-1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libfreerdp-server-proxy3-3-3.20.2-dfsg-1.md) | Jan 14, 2026 |
| Linux | libfreerdp-server3-3 Ubuntu 24.04.5 LTS (noble) | 3.5.1+dfsg1-0ubuntu1.4 | [libfreerdp-server3-3 3.5.1+dfsg1-0ubuntu1.4](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libfreerdp-server3-3-3.5.1-dfsg1-0ubuntu1.4.md) | Feb 25, 2026 |
| Linux | libfreerdp-server3-3 Ubuntu 25.10 (questing) | 3.16.0+dfsg-2ubuntu0.3 | [libfreerdp-server3-3 3.16.0+dfsg-2ubuntu0.3](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libfreerdp-server3-3-3.16.0-dfsg-2ubuntu0.3.md) | Feb 25, 2026 |
| Linux | libfreerdp-server3-3 Ubuntu 26.04.1 LTS (resolute) | 3.20.2+dfsg-1 | [libfreerdp-server3-3 3.20.2+dfsg-1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libfreerdp-server3-3-3.20.2-dfsg-1.md) | Jan 14, 2026 |
| Linux | libfreerdp-shadow-subsystem3-3 Ubuntu 24.04.5 LTS (noble) | 3.5.1+dfsg1-0ubuntu1.4 | [libfreerdp-shadow-subsystem3-3 3.5.1+dfsg1-0ubuntu1.4](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libfreerdp-shadow-subsystem3-3-3.5.1-dfsg1-0ubuntu1.4.md) | Feb 25, 2026 |
| Linux | libfreerdp-shadow-subsystem3-3 Ubuntu 25.10 (questing) | 3.16.0+dfsg-2ubuntu0.3 | [libfreerdp-shadow-subsystem3-3 3.16.0+dfsg-2ubuntu0.3](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libfreerdp-shadow-subsystem3-3-3.16.0-dfsg-2ubuntu0.3.md) | Feb 25, 2026 |
| Linux | libfreerdp-shadow-subsystem3-3 Ubuntu 26.04.1 LTS (resolute) | 3.20.2+dfsg-1 | [libfreerdp-shadow-subsystem3-3 3.20.2+dfsg-1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libfreerdp-shadow-subsystem3-3-3.20.2-dfsg-1.md) | Jan 14, 2026 |
| Linux | libfreerdp-shadow3-3 Ubuntu 24.04.5 LTS (noble) | 3.5.1+dfsg1-0ubuntu1.4 | [libfreerdp-shadow3-3 3.5.1+dfsg1-0ubuntu1.4](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libfreerdp-shadow3-3-3.5.1-dfsg1-0ubuntu1.4.md) | Feb 25, 2026 |
| Linux | libfreerdp-shadow3-3 Ubuntu 25.10 (questing) | 3.16.0+dfsg-2ubuntu0.3 | [libfreerdp-shadow3-3 3.16.0+dfsg-2ubuntu0.3](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libfreerdp-shadow3-3-3.16.0-dfsg-2ubuntu0.3.md) | Feb 25, 2026 |
| Linux | libfreerdp-shadow3-3 Ubuntu 26.04.1 LTS (resolute) | 3.20.2+dfsg-1 | [libfreerdp-shadow3-3 3.20.2+dfsg-1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libfreerdp-shadow3-3-3.20.2-dfsg-1.md) | Jan 14, 2026 |
| Linux | libfreerdp3-3 Ubuntu 24.04.5 LTS (noble) | 3.5.1+dfsg1-0ubuntu1.4 | [libfreerdp3-3 3.5.1+dfsg1-0ubuntu1.4](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libfreerdp3-3-3.5.1-dfsg1-0ubuntu1.4.md) | Feb 25, 2026 |
| Linux | libfreerdp3-3 Ubuntu 25.10 (questing) | 3.16.0+dfsg-2ubuntu0.3 | [libfreerdp3-3 3.16.0+dfsg-2ubuntu0.3](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libfreerdp3-3-3.16.0-dfsg-2ubuntu0.3.md) | Feb 25, 2026 |
| Linux | libfreerdp3-3 Ubuntu 26.04.1 LTS (resolute) | 3.20.2+dfsg-1 | [libfreerdp3-3 3.20.2+dfsg-1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libfreerdp3-3-3.20.2-dfsg-1.md) | Jan 14, 2026 |
| Linux | libwinpr-tools3-3 Ubuntu 24.04.5 LTS (noble) | 3.5.1+dfsg1-0ubuntu1.4 | [libwinpr-tools3-3 3.5.1+dfsg1-0ubuntu1.4](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libwinpr-tools3-3-3.5.1-dfsg1-0ubuntu1.4.md) | Feb 25, 2026 |
| Linux | libwinpr-tools3-3 Ubuntu 25.10 (questing) | 3.16.0+dfsg-2ubuntu0.3 | [libwinpr-tools3-3 3.16.0+dfsg-2ubuntu0.3](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libwinpr-tools3-3-3.16.0-dfsg-2ubuntu0.3.md) | Feb 25, 2026 |
| Linux | libwinpr-tools3-3 Ubuntu 26.04.1 LTS (resolute) | 3.20.2+dfsg-1 | [libwinpr-tools3-3 3.20.2+dfsg-1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libwinpr-tools3-3-3.20.2-dfsg-1.md) | Jan 14, 2026 |
| Linux | libwinpr3-3 Ubuntu 24.04.5 LTS (noble) | 3.5.1+dfsg1-0ubuntu1.4 | [libwinpr3-3 3.5.1+dfsg1-0ubuntu1.4](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libwinpr3-3-3.5.1-dfsg1-0ubuntu1.4.md) | Feb 25, 2026 |
| Linux | libwinpr3-3 Ubuntu 25.10 (questing) | 3.16.0+dfsg-2ubuntu0.3 | [libwinpr3-3 3.16.0+dfsg-2ubuntu0.3](https://patchblox.com/security/data/fix/linux/ubuntu-questing-libwinpr3-3-3.16.0-dfsg-2ubuntu0.3.md) | Feb 25, 2026 |
| Linux | libwinpr3-3 Ubuntu 26.04.1 LTS (resolute) | 3.20.2+dfsg-1 | [libwinpr3-3 3.20.2+dfsg-1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-libwinpr3-3-3.20.2-dfsg-1.md) | Jan 14, 2026 |
| Linux | winpr3-utils Ubuntu 24.04.5 LTS (noble) | 3.5.1+dfsg1-0ubuntu1.4 | [winpr3-utils 3.5.1+dfsg1-0ubuntu1.4](https://patchblox.com/security/data/fix/linux/ubuntu-noble-winpr3-utils-3.5.1-dfsg1-0ubuntu1.4.md) | Feb 25, 2026 |
| Linux | winpr3-utils Ubuntu 25.10 (questing) | 3.16.0+dfsg-2ubuntu0.3 | [winpr3-utils 3.16.0+dfsg-2ubuntu0.3](https://patchblox.com/security/data/fix/linux/ubuntu-questing-winpr3-utils-3.16.0-dfsg-2ubuntu0.3.md) | Feb 25, 2026 |
| Linux | winpr3-utils Ubuntu 26.04.1 LTS (resolute) | 3.20.2+dfsg-1 | [winpr3-utils 3.20.2+dfsg-1](https://patchblox.com/security/data/fix/linux/ubuntu-resolute-winpr3-utils-3.20.2-dfsg-1.md) | Jan 14, 2026 |

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