# CVE-2026-27950: freerdp3: FreeRDP is a free implementation of the Remote Desktop Protocol

CVE-2026-27950 is fixed in 27 products on 1 platform, first by freerdp3-proxy 3.16.0+dfsg-2ubuntu0.3, released February 25, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-27950
- Priority: High
- CVSS: 7.5 (high)
- EPSS: 0.0050
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Feb 25, 2026

## Description

FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, the fix for the heap-use-after-free described in CVE-2026-24680 is incomplete. While the vulnerable execution flow referenced in the advisory exists in the SDL2 implementation, the fix appears to have been applied only to the SDL3 code path. In the SDL2 implementation, the pointer is not nulled after free. This creates a situation where the advisory suggests the vulnerability is fully resolved, while builds or environments still using SDL2 may retain the vulnerable logic. A complete fix is available in version 3.23.0.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | freerdp amzn 2023 | 2:3.6.3-1.amzn2023.0.7 | [ALAS2023-2026-1512](https://patchblox.com/security/data/fix/linux/alas2023-2026-1512.md) | Mar 30, 2026 |
| Linux | freerdp-debuginfo amzn 2023 | 2:3.6.3-1.amzn2023.0.7 | [ALAS2023-2026-1512](https://patchblox.com/security/data/fix/linux/alas2023-2026-1512.md) | Mar 30, 2026 |
| Linux | freerdp-debugsource amzn 2023 | 2:3.6.3-1.amzn2023.0.7 | [ALAS2023-2026-1512](https://patchblox.com/security/data/fix/linux/alas2023-2026-1512.md) | Mar 30, 2026 |
| Linux | freerdp-devel amzn 2023 | 2:3.6.3-1.amzn2023.0.7 | [ALAS2023-2026-1512](https://patchblox.com/security/data/fix/linux/alas2023-2026-1512.md) | Mar 30, 2026 |
| Linux | freerdp-libs amzn 2023 | 2:3.6.3-1.amzn2023.0.7 | [ALAS2023-2026-1512](https://patchblox.com/security/data/fix/linux/alas2023-2026-1512.md) | Mar 30, 2026 |
| Linux | freerdp-libs-debuginfo amzn 2023 | 2:3.6.3-1.amzn2023.0.7 | [ALAS2023-2026-1512](https://patchblox.com/security/data/fix/linux/alas2023-2026-1512.md) | Mar 30, 2026 |
| Linux | freerdp-server amzn 2023 | 2:3.6.3-1.amzn2023.0.7 | [ALAS2023-2026-1512](https://patchblox.com/security/data/fix/linux/alas2023-2026-1512.md) | Mar 30, 2026 |
| Linux | freerdp-server-debuginfo amzn 2023 | 2:3.6.3-1.amzn2023.0.7 | [ALAS2023-2026-1512](https://patchblox.com/security/data/fix/linux/alas2023-2026-1512.md) | Mar 30, 2026 |
| Linux | freerdp3 Debian 14 | 3.23.0+dfsg-1 | [DEBIAN-CVE-2026-27950](https://patchblox.com/security/data/fix/linux/debian-cve-2026-27950.md) | Feb 25, 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-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-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-shadow-x11 Ubuntu 24.04.5 LTS (noble) | 3.5.1+dfsg1-0ubuntu1.2 | [freerdp3-shadow-x11 3.5.1+dfsg1-0ubuntu1.2](https://patchblox.com/security/data/fix/linux/ubuntu-noble-freerdp3-shadow-x11-3.5.1-dfsg1-0ubuntu1.2.md) | Mar 12, 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-wayland Ubuntu 24.04.5 LTS (noble) | 3.5.1+dfsg1-0ubuntu1.2 | [freerdp3-wayland 3.5.1+dfsg1-0ubuntu1.2](https://patchblox.com/security/data/fix/linux/ubuntu-noble-freerdp3-wayland-3.5.1-dfsg1-0ubuntu1.2.md) | Mar 12, 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-x11 Ubuntu 24.04.5 LTS (noble) | 3.5.1+dfsg1-0ubuntu1.2 | [freerdp3-x11 3.5.1+dfsg1-0ubuntu1.2](https://patchblox.com/security/data/fix/linux/ubuntu-noble-freerdp3-x11-3.5.1-dfsg1-0ubuntu1.2.md) | Mar 12, 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 | libfreerdp-client3-3 Ubuntu 24.04.5 LTS (noble) | 3.5.1+dfsg1-0ubuntu1.2 | [libfreerdp-client3-3 3.5.1+dfsg1-0ubuntu1.2](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libfreerdp-client3-3-3.5.1-dfsg1-0ubuntu1.2.md) | Mar 12, 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-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-server3-3 Ubuntu 24.04.5 LTS (noble) | 3.5.1+dfsg1-0ubuntu1.2 | [libfreerdp-server3-3 3.5.1+dfsg1-0ubuntu1.2](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libfreerdp-server3-3-3.5.1-dfsg1-0ubuntu1.2.md) | Mar 12, 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-shadow-subsystem3-3 Ubuntu 24.04.5 LTS (noble) | 3.5.1+dfsg1-0ubuntu1.2 | [libfreerdp-shadow-subsystem3-3 3.5.1+dfsg1-0ubuntu1.2](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libfreerdp-shadow-subsystem3-3-3.5.1-dfsg1-0ubuntu1.2.md) | Mar 12, 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-shadow3-3 Ubuntu 24.04.5 LTS (noble) | 3.5.1+dfsg1-0ubuntu1.2 | [libfreerdp-shadow3-3 3.5.1+dfsg1-0ubuntu1.2](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libfreerdp-shadow3-3-3.5.1-dfsg1-0ubuntu1.2.md) | Mar 12, 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 | libfreerdp3-3 Ubuntu 24.04.5 LTS (noble) | 3.5.1+dfsg1-0ubuntu1.2 | [libfreerdp3-3 3.5.1+dfsg1-0ubuntu1.2](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libfreerdp3-3-3.5.1-dfsg1-0ubuntu1.2.md) | Mar 12, 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 | libwinpr amzn 2023 | 2:3.6.3-1.amzn2023.0.7 | [ALAS2023-2026-1512](https://patchblox.com/security/data/fix/linux/alas2023-2026-1512.md) | Mar 30, 2026 |
| Linux | libwinpr-debuginfo amzn 2023 | 2:3.6.3-1.amzn2023.0.7 | [ALAS2023-2026-1512](https://patchblox.com/security/data/fix/linux/alas2023-2026-1512.md) | Mar 30, 2026 |
| Linux | libwinpr-devel amzn 2023 | 2:3.6.3-1.amzn2023.0.7 | [ALAS2023-2026-1512](https://patchblox.com/security/data/fix/linux/alas2023-2026-1512.md) | Mar 30, 2026 |
| Linux | libwinpr-tools3-3 Ubuntu 24.04.5 LTS (noble) | 3.5.1+dfsg1-0ubuntu1.2 | [libwinpr-tools3-3 3.5.1+dfsg1-0ubuntu1.2](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libwinpr-tools3-3-3.5.1-dfsg1-0ubuntu1.2.md) | Mar 12, 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 | libwinpr3-3 Ubuntu 24.04.5 LTS (noble) | 3.5.1+dfsg1-0ubuntu1.2 | [libwinpr3-3 3.5.1+dfsg1-0ubuntu1.2](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libwinpr3-3-3.5.1-dfsg1-0ubuntu1.2.md) | Mar 12, 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 | winpr3-utils Ubuntu 24.04.5 LTS (noble) | 3.5.1+dfsg1-0ubuntu1.2 | [winpr3-utils 3.5.1+dfsg1-0ubuntu1.2](https://patchblox.com/security/data/fix/linux/ubuntu-noble-winpr3-utils-3.5.1-dfsg1-0ubuntu1.2.md) | Mar 12, 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 |

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Data as of 2026-11-09T01:18:40Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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