CVE-2026-55193
freerdp3: FreeRDP is a free implementation of the Remote Desktop Protocol
CVE-2026-55193 is fixed in 34 products on 1 platform, first by DEBIAN-CVE-2026-55193, released July 8, 2026. It is not reported as exploited. Patch Radar priority: High.
High
CVSS
8.8
high
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0048
41st percentile
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.27.0, FreeRDP clients using TS Gateway accept a server-controlled max_xmit_frag value in libfreerdp/core/gateway/rpc_bind.c without bounding it to the 4088-byte ReceiveFragment allocation. A malicious gateway can advertise 65535 and then send a response fragment of the same length, causing rpc_channel_read in libfreerdp/core/gateway/rpc.c to write up to 65535 bytes into the smaller ReceiveFragment buffer. This can crash the client and may permit code execution through attacker-controlled heap corruption. This issue is fixed in version 3.27.0.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| freerdp · RHEL 10 | 3.10.3-3.el10_0.18 | RHSA-2026:74471 | Sep 11, 2026 |
| freerdp · RHEL 8 | 2:2.11.7-13.el8_10 | RHSA-2026:69387 | Sep 22, 2026 |
| freerdp · RHEL 9 | 2:2.11.7-7.el9_8.7 | RHSA-2026:66347 | Sep 13, 2026 |
| freerdp · almalinux 10 | 2:3.10.3-12.el10_2.11 | ALSA-2026:66349 | Sep 10, 2026 |
| freerdp · almalinux 8 | 2:2.11.7-13.el8_10 | ALSA-2026:69387 | Sep 21, 2026 |
| freerdp · almalinux 9 | 2:2.11.7-7.el9_8.7 | ALSA-2026:66347 | Sep 10, 2026 |
| freerdp · amzn 2023 | 2:3.6.3-1.amzn2023.0.13 | ALAS2023-2026-2012 | Aug 3, 2026 |
| freerdp · ol 10 | 2:3.10.3-12.el10_2.11 | ELSA-2026-66349-0 | Sep 11, 2026 |
| freerdp · ol 8 | 2:2.11.7-13.el8_10 | ELSA-2026-69387 | Sep 23, 2026 |
| freerdp · ol 9 | 2:2.11.7-7.el9_8.7 | ELSA-2026-66347-0 | Sep 10, 2026 |
| freerdp · rocky 10 | 2:3.10.3-12.el10_2.11 | RLSA-2026:66349 | Sep 11, 2026 |
| freerdp · rocky 8 | 2:2.11.7-13.el8_10 | RLSA-2026:69387 | Sep 23, 2026 |
| freerdp · rocky 9 | 2:2.11.7-7.el9_8.7 | RLSA-2026:66347 | Sep 11, 2026 |
| freerdp-debuginfo · amzn 2023 | 2:3.6.3-1.amzn2023.0.13 | ALAS2023-2026-2012 | Aug 3, 2026 |
| freerdp-debugsource · amzn 2023 | 2:3.6.3-1.amzn2023.0.13 | ALAS2023-2026-2012 | Aug 3, 2026 |
| freerdp-devel · RHEL 8 | 2:2.11.7-13.el8_10 | RHSA-2026:69387 | Sep 22, 2026 |
| freerdp-devel · RHEL 9 | 2:2.11.7-7.el9_8.7 | RHSA-2026:66347 | Sep 13, 2026 |
| freerdp-devel · almalinux 10 | 2:3.10.3-12.el10_2.11 | ALSA-2026:66349 | Sep 10, 2026 |
| freerdp-devel · almalinux 8 | 2:2.11.7-13.el8_10 | ALSA-2026:69387 | Sep 21, 2026 |
| freerdp-devel · almalinux 9 | 2:2.11.7-7.el9_8.7 | ALSA-2026:66347 | Sep 10, 2026 |
| freerdp-devel · amzn 2023 | 2:3.6.3-1.amzn2023.0.13 | ALAS2023-2026-2012 | Aug 3, 2026 |
| freerdp-devel · ol 10 | 2:3.10.3-12.el10_2.11 | ELSA-2026-66349-0 | Sep 11, 2026 |
| freerdp-devel · ol 8 | 2:2.11.7-13.el8_10 | ELSA-2026-69387 | Sep 23, 2026 |
| freerdp-devel · ol 9 | 2:2.11.7-7.el9_8.7 | ELSA-2026-66347-0 | Sep 10, 2026 |
| freerdp-libs · RHEL 8 | 2:2.11.7-13.el8_10 | RHSA-2026:69387 | Sep 22, 2026 |
| freerdp-libs · RHEL 9 | 2:2.11.7-7.el9_8.7 | RHSA-2026:66347 | Sep 13, 2026 |
| freerdp-libs · almalinux 10 | 2:3.10.3-12.el10_2.11 | ALSA-2026:66349 | Sep 10, 2026 |
| freerdp-libs · almalinux 8 | 2:2.11.7-13.el8_10 | ALSA-2026:69387 | Sep 21, 2026 |
| freerdp-libs · almalinux 9 | 2:2.11.7-7.el9_8.7 | ALSA-2026:66347 | Sep 10, 2026 |
| freerdp-libs · amzn 2023 | 2:3.6.3-1.amzn2023.0.13 | ALAS2023-2026-2012 | Aug 3, 2026 |
| freerdp-libs · ol 10 | 2:3.10.3-12.el10_2.11 | ELSA-2026-66349-0 | Sep 11, 2026 |
| freerdp-libs · ol 8 | 2:2.11.7-13.el8_10 | ELSA-2026-69387 | Sep 23, 2026 |
| freerdp-libs · ol 9 | 2:2.11.7-7.el9_8.7 | ELSA-2026-66347-0 | Sep 10, 2026 |
| freerdp-libs-debuginfo · amzn 2023 | 2:3.6.3-1.amzn2023.0.13 | ALAS2023-2026-2012 | Aug 3, 2026 |
| freerdp-proxy · Ubuntu 26.04.1 LTS (resolute) | 3.30.0+dfsg-0ubuntu0.26.04.1 | freerdp-proxy 3.30.0+dfsg-0ubuntu0.26.04.1 | Nov 7, 2026 |
| freerdp-proxy-modules · Ubuntu 26.04.1 LTS (resolute) | 3.30.0+dfsg-0ubuntu0.26.04.1 | freerdp-proxy-modules 3.30.0+dfsg-0ubuntu0.26.04.1 | Nov 7, 2026 |
| freerdp-sdl · Ubuntu 26.04.1 LTS (resolute) | 3.30.0+dfsg-0ubuntu0.26.04.1 | freerdp-sdl 3.30.0+dfsg-0ubuntu0.26.04.1 | Nov 7, 2026 |
| freerdp-server · almalinux 10 | 2:3.10.3-12.el10_2.11 | ALSA-2026:66349 | Sep 10, 2026 |
| freerdp-server · amzn 2023 | 2:3.6.3-1.amzn2023.0.13 | ALAS2023-2026-2012 | Aug 3, 2026 |
| freerdp-server · ol 10 | 2:3.10.3-12.el10_2.11 | ELSA-2026-66349-0 | Sep 11, 2026 |
| freerdp-server-debuginfo · amzn 2023 | 2:3.6.3-1.amzn2023.0.13 | ALAS2023-2026-2012 | Aug 3, 2026 |
| freerdp-shadow-x11 · Ubuntu 26.04.1 LTS (resolute) | 3.30.0+dfsg-0ubuntu0.26.04.1 | freerdp-shadow-x11 3.30.0+dfsg-0ubuntu0.26.04.1 | Nov 7, 2026 |
| freerdp-wayland · Ubuntu 26.04.1 LTS (resolute) | 3.30.0+dfsg-0ubuntu0.26.04.1 | freerdp-wayland 3.30.0+dfsg-0ubuntu0.26.04.1 | Nov 7, 2026 |
| freerdp-x11 · Ubuntu 26.04.1 LTS (resolute) | 3.30.0+dfsg-0ubuntu0.26.04.1 | freerdp-x11 3.30.0+dfsg-0ubuntu0.26.04.1 | Nov 7, 2026 |
| freerdp3 · Debian 14 | 3.27.0+dfsg-1 | DEBIAN-CVE-2026-55193 | Jul 8, 2026 |
| freerdp3-proxy · Ubuntu 26.04.1 LTS (resolute) | 3.30.0+dfsg-0ubuntu0.26.04.1 | freerdp3-proxy 3.30.0+dfsg-0ubuntu0.26.04.1 | Nov 7, 2026 |
| freerdp3-proxy-modules · Ubuntu 26.04.1 LTS (resolute) | 3.30.0+dfsg-0ubuntu0.26.04.1 | freerdp3-proxy-modules 3.30.0+dfsg-0ubuntu0.26.04.1 | Nov 7, 2026 |
| freerdp3-sdl · Ubuntu 26.04.1 LTS (resolute) | 3.30.0+dfsg-0ubuntu0.26.04.1 | freerdp3-sdl 3.30.0+dfsg-0ubuntu0.26.04.1 | Nov 7, 2026 |
| freerdp3-shadow-x11 · Ubuntu 24.04.5 LTS (noble) | 3.30.0+dfsg-0ubuntu0.24.04.1 | freerdp3-shadow-x11 3.30.0+dfsg-0ubuntu0.24.04.1 | Jul 23, 2026 |
| freerdp3-shadow-x11 · Ubuntu 26.04.1 LTS (resolute) | 3.30.0+dfsg-0ubuntu0.26.04.1 | freerdp3-shadow-x11 3.30.0+dfsg-0ubuntu0.26.04.1 | Nov 7, 2026 |
| freerdp3-wayland · Ubuntu 24.04.5 LTS (noble) | 3.30.0+dfsg-0ubuntu0.24.04.1 | freerdp3-wayland 3.30.0+dfsg-0ubuntu0.24.04.1 | Jul 23, 2026 |
| freerdp3-wayland · Ubuntu 26.04.1 LTS (resolute) | 3.30.0+dfsg-0ubuntu0.26.04.1 | freerdp3-wayland 3.30.0+dfsg-0ubuntu0.26.04.1 | Nov 7, 2026 |
| freerdp3-x11 · Ubuntu 24.04.5 LTS (noble) | 3.30.0+dfsg-0ubuntu0.24.04.1 | freerdp3-x11 3.30.0+dfsg-0ubuntu0.24.04.1 | Jul 23, 2026 |
| freerdp3-x11 · Ubuntu 26.04.1 LTS (resolute) | 3.30.0+dfsg-0ubuntu0.26.04.1 | freerdp3-x11 3.30.0+dfsg-0ubuntu0.26.04.1 | Nov 7, 2026 |
| libfreerdp-client3-3 · Ubuntu 24.04.5 LTS (noble) | 3.30.0+dfsg-0ubuntu0.24.04.1 | libfreerdp-client3-3 3.30.0+dfsg-0ubuntu0.24.04.1 | Jul 23, 2026 |
| libfreerdp-client3-3 · Ubuntu 26.04.1 LTS (resolute) | 3.30.0+dfsg-0ubuntu0.26.04.1 | libfreerdp-client3-3 3.30.0+dfsg-0ubuntu0.26.04.1 | Nov 7, 2026 |
| libfreerdp-server-proxy3-3 · Ubuntu 26.04.1 LTS (resolute) | 3.30.0+dfsg-0ubuntu0.26.04.1 | libfreerdp-server-proxy3-3 3.30.0+dfsg-0ubuntu0.26.04.1 | Nov 7, 2026 |
| libfreerdp-server3-3 · Ubuntu 24.04.5 LTS (noble) | 3.30.0+dfsg-0ubuntu0.24.04.1 | libfreerdp-server3-3 3.30.0+dfsg-0ubuntu0.24.04.1 | Jul 23, 2026 |
| libfreerdp-server3-3 · Ubuntu 26.04.1 LTS (resolute) | 3.30.0+dfsg-0ubuntu0.26.04.1 | libfreerdp-server3-3 3.30.0+dfsg-0ubuntu0.26.04.1 | Nov 7, 2026 |
| libfreerdp-shadow-subsystem3-3 · Ubuntu 24.04.5 LTS (noble) | 3.30.0+dfsg-0ubuntu0.24.04.1 | libfreerdp-shadow-subsystem3-3 3.30.0+dfsg-0ubuntu0.24.04.1 | Jul 23, 2026 |
| libfreerdp-shadow-subsystem3-3 · Ubuntu 26.04.1 LTS (resolute) | 3.30.0+dfsg-0ubuntu0.26.04.1 | libfreerdp-shadow-subsystem3-3 3.30.0+dfsg-0ubuntu0.26.04.1 | Nov 7, 2026 |
| libfreerdp-shadow3-3 · Ubuntu 24.04.5 LTS (noble) | 3.30.0+dfsg-0ubuntu0.24.04.1 | libfreerdp-shadow3-3 3.30.0+dfsg-0ubuntu0.24.04.1 | Jul 23, 2026 |
| libfreerdp-shadow3-3 · Ubuntu 26.04.1 LTS (resolute) | 3.30.0+dfsg-0ubuntu0.26.04.1 | libfreerdp-shadow3-3 3.30.0+dfsg-0ubuntu0.26.04.1 | Nov 7, 2026 |
| libfreerdp3-3 · Ubuntu 24.04.5 LTS (noble) | 3.30.0+dfsg-0ubuntu0.24.04.1 | libfreerdp3-3 3.30.0+dfsg-0ubuntu0.24.04.1 | Jul 23, 2026 |
| libfreerdp3-3 · Ubuntu 26.04.1 LTS (resolute) | 3.30.0+dfsg-0ubuntu0.26.04.1 | libfreerdp3-3 3.30.0+dfsg-0ubuntu0.26.04.1 | Nov 7, 2026 |
| libwinpr · RHEL 8 | 2:2.11.7-13.el8_10 | RHSA-2026:69387 | Sep 22, 2026 |
| libwinpr · RHEL 9 | 2:2.11.7-7.el9_8.7 | RHSA-2026:66347 | Sep 13, 2026 |
| libwinpr · almalinux 10 | 2:3.10.3-12.el10_2.11 | ALSA-2026:66349 | Sep 10, 2026 |
| libwinpr · almalinux 8 | 2:2.11.7-13.el8_10 | ALSA-2026:69387 | Sep 21, 2026 |
| libwinpr · almalinux 9 | 2:2.11.7-7.el9_8.7 | ALSA-2026:66347 | Sep 10, 2026 |
| libwinpr · amzn 2023 | 2:3.6.3-1.amzn2023.0.13 | ALAS2023-2026-2012 | Aug 3, 2026 |
| libwinpr · ol 10 | 2:3.10.3-12.el10_2.11 | ELSA-2026-66349-0 | Sep 11, 2026 |
| libwinpr · ol 8 | 2:2.11.7-13.el8_10 | ELSA-2026-69387 | Sep 23, 2026 |
| libwinpr · ol 9 | 2:2.11.7-7.el9_8.7 | ELSA-2026-66347-0 | Sep 10, 2026 |
| libwinpr-debuginfo · amzn 2023 | 2:3.6.3-1.amzn2023.0.13 | ALAS2023-2026-2012 | Aug 3, 2026 |
| libwinpr-devel · RHEL 8 | 2:2.11.7-13.el8_10 | RHSA-2026:69387 | Sep 22, 2026 |
| libwinpr-devel · RHEL 9 | 2:2.11.7-7.el9_8.7 | RHSA-2026:66347 | Sep 13, 2026 |
| libwinpr-devel · almalinux 10 | 2:3.10.3-12.el10_2.11 | ALSA-2026:66349 | Sep 10, 2026 |
| libwinpr-devel · almalinux 8 | 2:2.11.7-13.el8_10 | ALSA-2026:69387 | Sep 21, 2026 |
| libwinpr-devel · almalinux 9 | 2:2.11.7-7.el9_8.7 | ALSA-2026:66347 | Sep 10, 2026 |
| libwinpr-devel · amzn 2023 | 2:3.6.3-1.amzn2023.0.13 | ALAS2023-2026-2012 | Aug 3, 2026 |
| libwinpr-devel · ol 10 | 2:3.10.3-12.el10_2.11 | ELSA-2026-66349-0 | Sep 11, 2026 |
| libwinpr-devel · ol 8 | 2:2.11.7-13.el8_10 | ELSA-2026-69387 | Sep 23, 2026 |
| libwinpr-devel · ol 9 | 2:2.11.7-7.el9_8.7 | ELSA-2026-66347-0 | Sep 10, 2026 |
| libwinpr-tools3-3 · Ubuntu 24.04.5 LTS (noble) | 3.30.0+dfsg-0ubuntu0.24.04.1 | libwinpr-tools3-3 3.30.0+dfsg-0ubuntu0.24.04.1 | Jul 23, 2026 |
| libwinpr-tools3-3 · Ubuntu 26.04.1 LTS (resolute) | 3.30.0+dfsg-0ubuntu0.26.04.1 | libwinpr-tools3-3 3.30.0+dfsg-0ubuntu0.26.04.1 | Nov 7, 2026 |
| libwinpr3-3 · Ubuntu 24.04.5 LTS (noble) | 3.30.0+dfsg-0ubuntu0.24.04.1 | libwinpr3-3 3.30.0+dfsg-0ubuntu0.24.04.1 | Jul 23, 2026 |
| libwinpr3-3 · Ubuntu 26.04.1 LTS (resolute) | 3.30.0+dfsg-0ubuntu0.26.04.1 | libwinpr3-3 3.30.0+dfsg-0ubuntu0.26.04.1 | Nov 7, 2026 |
| winpr-utils · Ubuntu 26.04.1 LTS (resolute) | 3.30.0+dfsg-0ubuntu0.26.04.1 | winpr-utils 3.30.0+dfsg-0ubuntu0.26.04.1 | Nov 7, 2026 |
| winpr3-utils · Ubuntu 24.04.5 LTS (noble) | 3.30.0+dfsg-0ubuntu0.24.04.1 | winpr3-utils 3.30.0+dfsg-0ubuntu0.24.04.1 | Jul 23, 2026 |
| winpr3-utils · Ubuntu 26.04.1 LTS (resolute) | 3.30.0+dfsg-0ubuntu0.26.04.1 | winpr3-utils 3.30.0+dfsg-0ubuntu0.26.04.1 | Nov 7, 2026 |
Patch Radar data is free to use with attribution. Terms and how to credit it.
Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.