CVE-2026-55194
Fixed in a distro release EPSS <1%CVSS 8.7
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.
Products: FreeRDP
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux 10 | freerdp | 2:3.10.3-12.el10_2.10 |
| AlmaLinux 10 | freerdp-devel | 2:3.10.3-12.el10_2.10 |
| AlmaLinux 10 | freerdp-libs | 2:3.10.3-12.el10_2.10 |
| AlmaLinux 10 | freerdp-server | 2:3.10.3-12.el10_2.10 |
| AlmaLinux 10 | libwinpr | 2:3.10.3-12.el10_2.10 |
| AlmaLinux 10 | libwinpr-devel | 2:3.10.3-12.el10_2.10 |
| AlmaLinux 8 | freerdp | 2:2.11.7-12.el8_10 |
| AlmaLinux 8 | freerdp-devel | 2:2.11.7-12.el8_10 |
| AlmaLinux 8 | freerdp-libs | 2:2.11.7-12.el8_10 |
| AlmaLinux 8 | libwinpr | 2:2.11.7-12.el8_10 |
| AlmaLinux 8 | libwinpr-devel | 2:2.11.7-12.el8_10 |
| AlmaLinux 9 | freerdp | 2:2.11.7-7.el9_8.6 |
| AlmaLinux 9 | freerdp-devel | 2:2.11.7-7.el9_8.6 |
| AlmaLinux 9 | freerdp-libs | 2:2.11.7-7.el9_8.6 |
| AlmaLinux 9 | libwinpr | 2:2.11.7-7.el9_8.6 |
| AlmaLinux 9 | libwinpr-devel | 2:2.11.7-7.el9_8.6 |
| Amazon Linux 2 | freerdp | 2:2.11.7-1.amzn2.0.13 |
| Amazon Linux 2 | freerdp-devel | 2:2.11.7-1.amzn2.0.13 |
| Amazon Linux 2 | freerdp-libs | 2:2.11.7-1.amzn2.0.13 |
| Amazon Linux 2 | libwinpr | 2:2.11.7-1.amzn2.0.13 |
| Amazon Linux 2 | libwinpr-devel | 2:2.11.7-1.amzn2.0.13 |
| Amazon Linux 2023 | freerdp | 2:3.6.3-1.amzn2023.0.13 |
| Amazon Linux 2023 | freerdp-devel | 2:3.6.3-1.amzn2023.0.13 |
| Amazon Linux 2023 | freerdp-libs | 2:3.6.3-1.amzn2023.0.13 |
| Amazon Linux 2023 | freerdp-server | 2:3.6.3-1.amzn2023.0.13 |
| Amazon Linux 2023 | libwinpr | 2:3.6.3-1.amzn2023.0.13 |
| Amazon Linux 2023 | libwinpr-devel | 2:3.6.3-1.amzn2023.0.13 |
| Debian 12 | freerdp2 | no fix |
| Debian 13 | freerdp3 | no fix |
| Debian 14 | freerdp3 | 3.27.0+dfsg-1 |
| Red Hat Enterprise Linux 10.2 | freerdp | 2:3.10.3-12.el10_2.10 |
| Red Hat Enterprise Linux 10.2 | freerdp-debuginfo | 2:3.10.3-12.el10_2.10 |
| Red Hat Enterprise Linux 10.2 | freerdp-debugsource | 2:3.10.3-12.el10_2.10 |
| Red Hat Enterprise Linux 10.2 | freerdp-devel | 2:3.10.3-12.el10_2.10 |
| Red Hat Enterprise Linux 10.2 | freerdp-libs | 2:3.10.3-12.el10_2.10 |
| Red Hat Enterprise Linux 10.2 | freerdp-libs-debuginfo | 2:3.10.3-12.el10_2.10 |
| Red Hat Enterprise Linux 10.2 | freerdp-server | 2:3.10.3-12.el10_2.10 |
| Red Hat Enterprise Linux 10.2 | freerdp-server-debuginfo | 2:3.10.3-12.el10_2.10 |
| Red Hat Enterprise Linux 10.2 | libwinpr | 2:3.10.3-12.el10_2.10 |
| Red Hat Enterprise Linux 10.2 | libwinpr-debuginfo | 2:3.10.3-12.el10_2.10 |
| Red Hat Enterprise Linux 10.2 | libwinpr-devel | 2:3.10.3-12.el10_2.10 |
| Red Hat Enterprise Linux 8 | freerdp | 2:2.11.7-12.el8_10 |
| Red Hat Enterprise Linux 8 | freerdp-debuginfo | 2:2.11.7-12.el8_10 |
| Red Hat Enterprise Linux 8 | freerdp-debugsource | 2:2.11.7-12.el8_10 |
| Red Hat Enterprise Linux 8 | freerdp-devel | 2:2.11.7-12.el8_10 |
| Red Hat Enterprise Linux 8 | freerdp-libs | 2:2.11.7-12.el8_10 |
| Red Hat Enterprise Linux 8 | freerdp-libs-debuginfo | 2:2.11.7-12.el8_10 |
| Red Hat Enterprise Linux 8 | libwinpr | 2:2.11.7-12.el8_10 |
| Red Hat Enterprise Linux 8 | libwinpr-debuginfo | 2:2.11.7-12.el8_10 |
| Red Hat Enterprise Linux 8 | libwinpr-devel | 2:2.11.7-12.el8_10 |
| Red Hat Enterprise Linux 9 | freerdp | 2:2.11.7-7.el9_8.6 |
| Red Hat Enterprise Linux 9 | freerdp-debuginfo | 2:2.11.7-7.el9_8.6 |
| Red Hat Enterprise Linux 9 | freerdp-debugsource | 2:2.11.7-7.el9_8.6 |
| Red Hat Enterprise Linux 9 | freerdp-devel | 2:2.11.7-7.el9_8.6 |
| Red Hat Enterprise Linux 9 | freerdp-libs | 2:2.11.7-7.el9_8.6 |
| Red Hat Enterprise Linux 9 | freerdp-libs-debuginfo | 2:2.11.7-7.el9_8.6 |
| Red Hat Enterprise Linux 9 | libwinpr | 2:2.11.7-7.el9_8.6 |
| Red Hat Enterprise Linux 9 | libwinpr-debuginfo | 2:2.11.7-7.el9_8.6 |
| Red Hat Enterprise Linux 9 | libwinpr-devel | 2:2.11.7-7.el9_8.6 |
| Red Hat Enterprise Linux eus 10.0 | freerdp | 2:3.10.3-3.el10_0.16 |
| Red Hat Enterprise Linux eus 10.0 | freerdp-debuginfo | 2:3.10.3-3.el10_0.16 |
| Red Hat Enterprise Linux eus 10.0 | freerdp-debugsource | 2:3.10.3-3.el10_0.16 |
| Red Hat Enterprise Linux eus 10.0 | freerdp-devel | 2:3.10.3-3.el10_0.16 |
| Red Hat Enterprise Linux eus 10.0 | freerdp-libs | 2:3.10.3-3.el10_0.16 |
| Red Hat Enterprise Linux eus 10.0 | freerdp-libs-debuginfo | 2:3.10.3-3.el10_0.16 |
| Red Hat Enterprise Linux eus 10.0 | freerdp-server | 2:3.10.3-3.el10_0.16 |
| Red Hat Enterprise Linux eus 10.0 | freerdp-server-debuginfo | 2:3.10.3-3.el10_0.16 |
| Red Hat Enterprise Linux eus 10.0 | libwinpr | 2:3.10.3-3.el10_0.16 |
| Red Hat Enterprise Linux eus 10.0 | libwinpr-debuginfo | 2:3.10.3-3.el10_0.16 |
| Red Hat Enterprise Linux eus 10.0 | libwinpr-devel | 2:3.10.3-3.el10_0.16 |
| Red Hat rhel aus 8.4 | freerdp | 2:2.2.0-14.el8_4.3 |
| Red Hat rhel aus 8.4 | freerdp-debuginfo | 2:2.2.0-14.el8_4.3 |
| Red Hat rhel aus 8.4 | freerdp-debugsource | 2:2.2.0-14.el8_4.3 |
| Red Hat rhel aus 8.4 | freerdp-libs | 2:2.2.0-14.el8_4.3 |
| Red Hat rhel aus 8.4 | freerdp-libs-debuginfo | 2:2.2.0-14.el8_4.3 |
| Red Hat rhel aus 8.4 | libwinpr | 2:2.2.0-14.el8_4.3 |
| Red Hat rhel aus 8.4 | libwinpr-debuginfo | 2:2.2.0-14.el8_4.3 |
| Red Hat rhel aus 8.4 | libwinpr-devel | 2:2.2.0-14.el8_4.3 |
| Red Hat rhel aus 8.6 | freerdp | 2:2.2.0-7.el8_6.12 |
| Red Hat rhel aus 8.6 | freerdp-debuginfo | 2:2.2.0-7.el8_6.12 |
| Red Hat rhel aus 8.6 | freerdp-debugsource | 2:2.2.0-7.el8_6.12 |
| Red Hat rhel aus 8.6 | freerdp-libs | 2:2.2.0-7.el8_6.12 |
| Red Hat rhel aus 8.6 | freerdp-libs-debuginfo | 2:2.2.0-7.el8_6.12 |
| Red Hat rhel aus 8.6 | libwinpr | 2:2.2.0-7.el8_6.12 |
| Red Hat rhel aus 8.6 | libwinpr-debuginfo | 2:2.2.0-7.el8_6.12 |
| Red Hat rhel aus 8.6 | libwinpr-devel | 2:2.2.0-7.el8_6.12 |
| Red Hat rhel e4s 8.8 | freerdp | 2:2.2.0-12.el8_8.11 |
| Red Hat rhel e4s 8.8 | freerdp-debuginfo | 2:2.2.0-12.el8_8.11 |
| Red Hat rhel e4s 8.8 | freerdp-debugsource | 2:2.2.0-12.el8_8.11 |
| Red Hat rhel e4s 8.8 | freerdp-libs | 2:2.2.0-12.el8_8.11 |
| Red Hat rhel e4s 8.8 | freerdp-libs-debuginfo | 2:2.2.0-12.el8_8.11 |
| Red Hat rhel e4s 8.8 | libwinpr | 2:2.2.0-12.el8_8.11 |
| Red Hat rhel e4s 8.8 | libwinpr-debuginfo | 2:2.2.0-12.el8_8.11 |
| Red Hat rhel e4s 8.8 | libwinpr-devel | 2:2.2.0-12.el8_8.11 |
| Red Hat rhel e4s 9.2 | freerdp | 2:2.4.1-6.el9_2.12 |
| Red Hat rhel e4s 9.2 | freerdp-debuginfo | 2:2.4.1-6.el9_2.12 |
| Red Hat rhel e4s 9.2 | freerdp-debugsource | 2:2.4.1-6.el9_2.12 |
| Red Hat rhel e4s 9.2 | freerdp-libs | 2:2.4.1-6.el9_2.12 |
| Red Hat rhel e4s 9.2 | freerdp-libs-debuginfo | 2:2.4.1-6.el9_2.12 |
| Red Hat rhel e4s 9.2 | libwinpr | 2:2.4.1-6.el9_2.12 |
| Red Hat rhel e4s 9.2 | libwinpr-debuginfo | 2:2.4.1-6.el9_2.12 |
| Red Hat rhel e4s 9.4 | freerdp | 2:2.11.2-1.el9_4.11 |
| Red Hat rhel e4s 9.4 | freerdp-debuginfo | 2:2.11.2-1.el9_4.11 |
| Red Hat rhel e4s 9.4 | freerdp-debugsource | 2:2.11.2-1.el9_4.11 |
| Red Hat rhel e4s 9.4 | freerdp-libs | 2:2.11.2-1.el9_4.11 |
| Red Hat rhel e4s 9.4 | freerdp-libs-debuginfo | 2:2.11.2-1.el9_4.11 |
| Red Hat rhel e4s 9.4 | libwinpr | 2:2.11.2-1.el9_4.11 |
| Red Hat rhel e4s 9.4 | libwinpr-debuginfo | 2:2.11.2-1.el9_4.11 |
| Red Hat rhel els 7 | freerdp | 0:2.1.1-5.el7_9.12 |
| Red Hat rhel els 7 | freerdp-debuginfo | 0:2.1.1-5.el7_9.12 |
| Red Hat rhel els 7 | freerdp-devel | 0:2.1.1-5.el7_9.12 |
| Red Hat rhel els 7 | freerdp-libs | 0:2.1.1-5.el7_9.12 |
| Red Hat rhel els 7 | libwinpr | 0:2.1.1-5.el7_9.12 |
| Red Hat rhel els 7 | libwinpr-devel | 0:2.1.1-5.el7_9.12 |
| Red Hat rhel eus 9.6 | freerdp | 2:2.11.7-1.el9_6.13 |
| Red Hat rhel eus 9.6 | freerdp-debuginfo | 2:2.11.7-1.el9_6.13 |
| Red Hat rhel eus 9.6 | freerdp-debugsource | 2:2.11.7-1.el9_6.13 |
| Red Hat rhel eus 9.6 | freerdp-devel | 2:2.11.7-1.el9_6.13 |
| Red Hat rhel eus 9.6 | freerdp-libs | 2:2.11.7-1.el9_6.13 |
| Red Hat rhel eus 9.6 | freerdp-libs-debuginfo | 2:2.11.7-1.el9_6.13 |
| Red Hat rhel eus 9.6 | libwinpr | 2:2.11.7-1.el9_6.13 |
| Red Hat rhel eus 9.6 | libwinpr-debuginfo | 2:2.11.7-1.el9_6.13 |
| Red Hat rhel eus 9.6 | libwinpr-devel | 2:2.11.7-1.el9_6.13 |
| Red Hat rhel eus long life 8.4 | freerdp | 2:2.2.0-14.el8_4.3 |
| Red Hat rhel eus long life 8.4 | freerdp-debuginfo | 2:2.2.0-14.el8_4.3 |
| Red Hat rhel eus long life 8.4 | freerdp-debugsource | 2:2.2.0-14.el8_4.3 |
| Red Hat rhel eus long life 8.4 | freerdp-libs | 2:2.2.0-14.el8_4.3 |
| Red Hat rhel eus long life 8.4 | freerdp-libs-debuginfo | 2:2.2.0-14.el8_4.3 |
| Red Hat rhel eus long life 8.4 | libwinpr | 2:2.2.0-14.el8_4.3 |
| Red Hat rhel eus long life 8.4 | libwinpr-debuginfo | 2:2.2.0-14.el8_4.3 |
| Red Hat rhel eus long life 8.4 | libwinpr-devel | 2:2.2.0-14.el8_4.3 |
| Red Hat rhel eus long life 8.6 | freerdp | 2:2.2.0-7.el8_6.12 |
| Red Hat rhel eus long life 8.6 | freerdp-debuginfo | 2:2.2.0-7.el8_6.12 |
| Red Hat rhel eus long life 8.6 | freerdp-debugsource | 2:2.2.0-7.el8_6.12 |
| Red Hat rhel eus long life 8.6 | freerdp-libs | 2:2.2.0-7.el8_6.12 |
| Red Hat rhel eus long life 8.6 | freerdp-libs-debuginfo | 2:2.2.0-7.el8_6.12 |
| Red Hat rhel eus long life 8.6 | libwinpr | 2:2.2.0-7.el8_6.12 |
| Red Hat rhel eus long life 8.6 | libwinpr-debuginfo | 2:2.2.0-7.el8_6.12 |
| Red Hat rhel eus long life 8.6 | libwinpr-devel | 2:2.2.0-7.el8_6.12 |
| Red Hat rhel tus 8.8 | freerdp | 2:2.2.0-12.el8_8.11 |
| Red Hat rhel tus 8.8 | freerdp-debuginfo | 2:2.2.0-12.el8_8.11 |
| Red Hat rhel tus 8.8 | freerdp-debugsource | 2:2.2.0-12.el8_8.11 |
| Red Hat rhel tus 8.8 | freerdp-libs | 2:2.2.0-12.el8_8.11 |
| Red Hat rhel tus 8.8 | freerdp-libs-debuginfo | 2:2.2.0-12.el8_8.11 |
| Red Hat rhel tus 8.8 | libwinpr | 2:2.2.0-12.el8_8.11 |
| Red Hat rhel tus 8.8 | libwinpr-debuginfo | 2:2.2.0-12.el8_8.11 |
| Red Hat rhel tus 8.8 | libwinpr-devel | 2:2.2.0-12.el8_8.11 |
| Rocky Linux 10 | freerdp | 2:3.10.3-12.el10_2.10 |
| Rocky Linux 8 | freerdp | 2:2.11.7-12.el8_10 |
| Rocky Linux 9 | freerdp | 2:2.11.7-7.el9_8.6 |
| Ubuntu 16.04 LTS | freerdp | no fix |
| Ubuntu 18.04 LTS | freerdp | no fix |
| Ubuntu 22.04 LTS | freerdp2 | no fix |
| Ubuntu 24.04 LTS | freerdp3 | 3.30.0+dfsg-0ubuntu0.24.04.1 |
| Ubuntu 25.10 | freerdp3 | no fix |
| Ubuntu 26.04 LTS | freerdp3 | 3.30.0+dfsg-0ubuntu0.26.04.1 |
| Ubuntu Pro 18.04 LTS | freerdp2 | no fix |
| Ubuntu Pro 20.04 LTS | freerdp2 | no fix |
| Ubuntu Pro 24.04 LTS | freerdp2 | no fix |
| openSUSE Tumbleweed | freerdp | 3.27.1-1.1 |