CVE-2026-55194
freerdp3: FreeRDP is a free implementation of the Remote Desktop Protocol
CVE-2026-55194 is fixed in 34 products on 1 platform, first by DEBIAN-CVE-2026-55194, released July 8, 2026. It is not reported as exploited. Patch Radar priority: Urgent.
Urgent
CVSS
9.8
critical
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0062
49th percentile
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.27.0, rpc_client_recv_fragment in libfreerdp/core/gateway/rpc_client.c ensures the response reassembly stream capacity using only the server-declared alloc_hint rather than the actual StubLength about to be written. A malicious TS Gateway can send a PTYPE_RESPONSE with a small alloc_hint and a much larger frag_length, causing Stream_Write to copy attacker-controlled stub data beyond the 4096-byte pdu->s buffer. This can crash the client and may permit code execution through 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_0.16 | RHSA-2026:68706 | Sep 2, 2026 |
| freerdp · RHEL 8 | 2:2.11.7-12.el8_10 | RHSA-2026:62571 | Sep 13, 2026 |
| freerdp · RHEL 9 | 2:2.11.7-7.el9_8.6 | RHSA-2026:61379 | Sep 13, 2026 |
| freerdp · almalinux 10 | 2:3.10.3-12.el10_2.10 | ALSA-2026:61378 | Aug 31, 2026 |
| freerdp · almalinux 8 | 2:2.11.7-12.el8_10 | ALSA-2026:62571 | Sep 2, 2026 |
| freerdp · almalinux 9 | 2:2.11.7-7.el9_8.6 | ALSA-2026:61379 | Aug 31, 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_2.10 | ELSA-2026-61378-0 | Sep 1, 2026 |
| freerdp · ol 8 | 2:2.11.7-12.el8_10 | ELSA-2026-62571-0 | Sep 2, 2026 |
| freerdp · ol 9 | 2:2.11.7-7.el9_8.6 | ELSA-2026-61379-0 | Sep 1, 2026 |
| freerdp · rocky 10 | 2:3.10.3-12.el10_2.10 | RLSA-2026:61378 | Sep 1, 2026 |
| freerdp · rocky 8 | 2:2.11.7-12.el8_10 | RLSA-2026:62571 | Sep 3, 2026 |
| freerdp · rocky 9 | 2:2.11.7-7.el9_8.6 | RLSA-2026:61379 | Sep 1, 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 | 2:2.11.7-12.el8_10 | RHSA-2026:62571 | Sep 13, 2026 |
| freerdp-devel · RHEL 9 | 2:2.11.7-7.el9_8.6 | RHSA-2026:61379 | Sep 13, 2026 |
| freerdp-devel · almalinux 10 | 2:3.10.3-12.el10_2.10 | ALSA-2026:61378 | Aug 31, 2026 |
| freerdp-devel · almalinux 8 | 2:2.11.7-12.el8_10 | ALSA-2026:62571 | Sep 2, 2026 |
| freerdp-devel · almalinux 9 | 2:2.11.7-7.el9_8.6 | ALSA-2026:61379 | Aug 31, 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_2.10 | ELSA-2026-61378-0 | Sep 1, 2026 |
| freerdp-devel · ol 8 | 2:2.11.7-12.el8_10 | ELSA-2026-62571-0 | Sep 2, 2026 |
| freerdp-devel · ol 9 | 2:2.11.7-7.el9_8.6 | ELSA-2026-61379-0 | Sep 1, 2026 |
| freerdp-libs · RHEL 8 | 2:2.11.7-12.el8_10 | RHSA-2026:62571 | Sep 13, 2026 |
| freerdp-libs · RHEL 9 | 2:2.11.7-7.el9_8.6 | RHSA-2026:61379 | Sep 13, 2026 |
| freerdp-libs · almalinux 10 | 2:3.10.3-12.el10_2.10 | ALSA-2026:61378 | Aug 31, 2026 |
| freerdp-libs · almalinux 8 | 2:2.11.7-12.el8_10 | ALSA-2026:62571 | Sep 2, 2026 |
| freerdp-libs · almalinux 9 | 2:2.11.7-7.el9_8.6 | ALSA-2026:61379 | Aug 31, 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_2.10 | ELSA-2026-61378-0 | Sep 1, 2026 |
| freerdp-libs · ol 8 | 2:2.11.7-12.el8_10 | ELSA-2026-62571-0 | Sep 2, 2026 |
| freerdp-libs · ol 9 | 2:2.11.7-7.el9_8.6 | ELSA-2026-61379-0 | Sep 1, 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_2.10 | ALSA-2026:61378 | Aug 31, 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_2.10 | ELSA-2026-61378-0 | Sep 1, 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-2026-55194 | 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 | 2:2.11.7-12.el8_10 | RHSA-2026:62571 | Sep 13, 2026 |
| libwinpr · RHEL 9 | 2:2.11.7-7.el9_8.6 | RHSA-2026:61379 | Sep 13, 2026 |
| libwinpr · almalinux 10 | 2:3.10.3-12.el10_2.10 | ALSA-2026:61378 | Aug 31, 2026 |
| libwinpr · almalinux 8 | 2:2.11.7-12.el8_10 | ALSA-2026:62571 | Sep 2, 2026 |
| libwinpr · almalinux 9 | 2:2.11.7-7.el9_8.6 | ALSA-2026:61379 | Aug 31, 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_2.10 | ELSA-2026-61378-0 | Sep 1, 2026 |
| libwinpr · ol 8 | 2:2.11.7-12.el8_10 | ELSA-2026-62571-0 | Sep 2, 2026 |
| libwinpr · ol 9 | 2:2.11.7-7.el9_8.6 | ELSA-2026-61379-0 | Sep 1, 2026 |
| libwinpr-debuginfo · amzn 2023 | 2:3.6.3-1.amzn2023.0.13 | ALAS2023-2026-2012 | Aug 3, 2026 |
| libwinpr-devel · RHEL 8 | 2:2.11.7-12.el8_10 | RHSA-2026:62571 | Sep 13, 2026 |
| libwinpr-devel · RHEL 9 | 2:2.11.7-7.el9_8.6 | RHSA-2026:61379 | Sep 13, 2026 |
| libwinpr-devel · almalinux 10 | 2:3.10.3-12.el10_2.10 | ALSA-2026:61378 | Aug 31, 2026 |
| libwinpr-devel · almalinux 8 | 2:2.11.7-12.el8_10 | ALSA-2026:62571 | Sep 2, 2026 |
| libwinpr-devel · almalinux 9 | 2:2.11.7-7.el9_8.6 | ALSA-2026:61379 | Aug 31, 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_2.10 | ELSA-2026-61378-0 | Sep 1, 2026 |
| libwinpr-devel · ol 8 | 2:2.11.7-12.el8_10 | ELSA-2026-62571-0 | Sep 2, 2026 |
| libwinpr-devel · ol 9 | 2:2.11.7-7.el9_8.6 | ELSA-2026-61379-0 | Sep 1, 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 |
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