CVE-2026-27951
Fixed in a distro release EPSS <1%CVSS 5.3
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.23.0, the function `Stream_EnsureCapacity` can create an endless blocking loop. This may affect all client and server implementations using `FreeRDP`. For practical exploitation this will only work on 32bit systems where the available physical memory is `>= SIZE_MAX`. Version 3.23.0 contains a patch. No known workarounds are available.
Products: FreeRDP
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux 8 | freerdp | 2:2.11.7-9.el8_10 |
| AlmaLinux 8 | freerdp-devel | 2:2.11.7-9.el8_10 |
| AlmaLinux 8 | freerdp-libs | 2:2.11.7-9.el8_10 |
| AlmaLinux 8 | libwinpr | 2:2.11.7-9.el8_10 |
| AlmaLinux 8 | libwinpr-devel | 2:2.11.7-9.el8_10 |
| AlmaLinux 9 | freerdp | 2:2.11.7-1.el9_7.7 |
| AlmaLinux 9 | freerdp | 2:2.11.7-7.el9_8.3 |
| AlmaLinux 9 | freerdp-devel | 2:2.11.7-1.el9_7.7 |
| AlmaLinux 9 | freerdp-devel | 2:2.11.7-7.el9_8.3 |
| AlmaLinux 9 | freerdp-libs | 2:2.11.7-1.el9_7.7 |
| AlmaLinux 9 | freerdp-libs | 2:2.11.7-7.el9_8.3 |
| AlmaLinux 9 | libwinpr | 2:2.11.7-1.el9_7.7 |
| AlmaLinux 9 | libwinpr | 2:2.11.7-7.el9_8.3 |
| AlmaLinux 9 | libwinpr-devel | 2:2.11.7-1.el9_7.7 |
| AlmaLinux 9 | libwinpr-devel | 2:2.11.7-7.el9_8.3 |
| Amazon Linux 2 | freerdp | 2:2.11.7-1.amzn2.0.8 |
| Amazon Linux 2 | freerdp-devel | 2:2.11.7-1.amzn2.0.8 |
| Amazon Linux 2 | freerdp-libs | 2:2.11.7-1.amzn2.0.8 |
| Amazon Linux 2 | libwinpr | 2:2.11.7-1.amzn2.0.8 |
| Amazon Linux 2 | libwinpr-devel | 2:2.11.7-1.amzn2.0.8 |
| Amazon Linux 2023 | freerdp | 2:3.6.3-1.amzn2023.0.7 |
| Amazon Linux 2023 | freerdp-devel | 2:3.6.3-1.amzn2023.0.7 |
| Amazon Linux 2023 | freerdp-libs | 2:3.6.3-1.amzn2023.0.7 |
| Amazon Linux 2023 | freerdp-server | 2:3.6.3-1.amzn2023.0.7 |
| Amazon Linux 2023 | libwinpr | 2:3.6.3-1.amzn2023.0.7 |
| Amazon Linux 2023 | libwinpr-devel | 2:3.6.3-1.amzn2023.0.7 |
| Debian 12 | freerdp2 | no fix |
| Debian 13 | freerdp3 | no fix |
| Debian 14 | freerdp3 | 3.23.0+dfsg-1 |
| Red Hat Enterprise Linux 8 | freerdp | 2:2.11.7-9.el8_10 |
| Red Hat Enterprise Linux 8 | freerdp-debuginfo | 2:2.11.7-9.el8_10 |
| Red Hat Enterprise Linux 8 | freerdp-debugsource | 2:2.11.7-9.el8_10 |
| Red Hat Enterprise Linux 8 | freerdp-devel | 2:2.11.7-9.el8_10 |
| Red Hat Enterprise Linux 8 | freerdp-libs | 2:2.11.7-9.el8_10 |
| Red Hat Enterprise Linux 8 | freerdp-libs-debuginfo | 2:2.11.7-9.el8_10 |
| Red Hat Enterprise Linux 8 | libwinpr | 2:2.11.7-9.el8_10 |
| Red Hat Enterprise Linux 8 | libwinpr-debuginfo | 2:2.11.7-9.el8_10 |
| Red Hat Enterprise Linux 8 | libwinpr-devel | 2:2.11.7-9.el8_10 |
| Red Hat Enterprise Linux 9 | freerdp | 2:2.11.7-1.el9_7.7 |
| Red Hat Enterprise Linux 9 | freerdp | 2:2.11.7-7.el9_8.3 |
| Red Hat Enterprise Linux 9 | freerdp-debuginfo | 2:2.11.7-1.el9_7.7 |
| Red Hat Enterprise Linux 9 | freerdp-debuginfo | 2:2.11.7-7.el9_8.3 |
| Red Hat Enterprise Linux 9 | freerdp-debugsource | 2:2.11.7-1.el9_7.7 |
| Red Hat Enterprise Linux 9 | freerdp-debugsource | 2:2.11.7-7.el9_8.3 |
| Red Hat Enterprise Linux 9 | freerdp-devel | 2:2.11.7-7.el9_8.3 |
| Red Hat Enterprise Linux 9 | freerdp-devel | 2:2.11.7-1.el9_7.7 |
| Red Hat Enterprise Linux 9 | freerdp-libs | 2:2.11.7-1.el9_7.7 |
| Red Hat Enterprise Linux 9 | freerdp-libs | 2:2.11.7-7.el9_8.3 |
| Red Hat Enterprise Linux 9 | freerdp-libs-debuginfo | 2:2.11.7-1.el9_7.7 |
| Red Hat Enterprise Linux 9 | freerdp-libs-debuginfo | 2:2.11.7-7.el9_8.3 |
| Red Hat Enterprise Linux 9 | libwinpr | 2:2.11.7-7.el9_8.3 |
| Red Hat Enterprise Linux 9 | libwinpr | 2:2.11.7-1.el9_7.7 |
| Red Hat Enterprise Linux 9 | libwinpr-debuginfo | 2:2.11.7-1.el9_7.7 |
| Red Hat Enterprise Linux 9 | libwinpr-debuginfo | 2:2.11.7-7.el9_8.3 |
| Red Hat Enterprise Linux 9 | libwinpr-devel | 2:2.11.7-1.el9_7.7 |
| Red Hat Enterprise Linux 9 | libwinpr-devel | 2:2.11.7-7.el9_8.3 |
| Red Hat rhel aus 8.4 | freerdp | 2:2.2.0-14.el8_4 |
| Red Hat rhel aus 8.4 | freerdp-debuginfo | 2:2.2.0-14.el8_4 |
| Red Hat rhel aus 8.4 | freerdp-debugsource | 2:2.2.0-14.el8_4 |
| Red Hat rhel aus 8.4 | freerdp-libs | 2:2.2.0-14.el8_4 |
| Red Hat rhel aus 8.4 | freerdp-libs-debuginfo | 2:2.2.0-14.el8_4 |
| Red Hat rhel aus 8.4 | libwinpr | 2:2.2.0-14.el8_4 |
| Red Hat rhel aus 8.4 | libwinpr-debuginfo | 2:2.2.0-14.el8_4 |
| Red Hat rhel aus 8.4 | libwinpr-devel | 2:2.2.0-14.el8_4 |
| Red Hat rhel aus 8.6 | freerdp | 2:2.2.0-7.el8_6.8 |
| Red Hat rhel aus 8.6 | freerdp-debuginfo | 2:2.2.0-7.el8_6.8 |
| Red Hat rhel aus 8.6 | freerdp-debugsource | 2:2.2.0-7.el8_6.8 |
| Red Hat rhel aus 8.6 | freerdp-libs | 2:2.2.0-7.el8_6.8 |
| Red Hat rhel aus 8.6 | freerdp-libs-debuginfo | 2:2.2.0-7.el8_6.8 |
| Red Hat rhel aus 8.6 | libwinpr | 2:2.2.0-7.el8_6.8 |
| Red Hat rhel aus 8.6 | libwinpr-debuginfo | 2:2.2.0-7.el8_6.8 |
| Red Hat rhel aus 8.6 | libwinpr-devel | 2:2.2.0-7.el8_6.8 |
| Red Hat rhel e4s 8.6 | freerdp | 2:2.2.0-7.el8_6.8 |
| Red Hat rhel e4s 8.6 | freerdp-debuginfo | 2:2.2.0-7.el8_6.8 |
| Red Hat rhel e4s 8.6 | freerdp-debugsource | 2:2.2.0-7.el8_6.8 |
| Red Hat rhel e4s 8.6 | freerdp-libs | 2:2.2.0-7.el8_6.8 |
| Red Hat rhel e4s 8.6 | freerdp-libs-debuginfo | 2:2.2.0-7.el8_6.8 |
| Red Hat rhel e4s 8.6 | libwinpr | 2:2.2.0-7.el8_6.8 |
| Red Hat rhel e4s 8.6 | libwinpr-debuginfo | 2:2.2.0-7.el8_6.8 |
| Red Hat rhel e4s 8.6 | libwinpr-devel | 2:2.2.0-7.el8_6.8 |
| Red Hat rhel e4s 8.8 | freerdp | 2:2.2.0-12.el8_8.8 |
| Red Hat rhel e4s 8.8 | freerdp-debuginfo | 2:2.2.0-12.el8_8.8 |
| Red Hat rhel e4s 8.8 | freerdp-debugsource | 2:2.2.0-12.el8_8.8 |
| Red Hat rhel e4s 8.8 | freerdp-libs | 2:2.2.0-12.el8_8.8 |
| Red Hat rhel e4s 8.8 | freerdp-libs-debuginfo | 2:2.2.0-12.el8_8.8 |
| Red Hat rhel e4s 8.8 | libwinpr | 2:2.2.0-12.el8_8.8 |
| Red Hat rhel e4s 8.8 | libwinpr-debuginfo | 2:2.2.0-12.el8_8.8 |
| Red Hat rhel e4s 8.8 | libwinpr-devel | 2:2.2.0-12.el8_8.8 |
| Red Hat rhel e4s 9.0 | freerdp | 2:2.4.1-3.el9_0.7 |
| Red Hat rhel e4s 9.0 | freerdp-debuginfo | 2:2.4.1-3.el9_0.7 |
| Red Hat rhel e4s 9.0 | freerdp-debugsource | 2:2.4.1-3.el9_0.7 |
| Red Hat rhel e4s 9.0 | freerdp-libs | 2:2.4.1-3.el9_0.7 |
| Red Hat rhel e4s 9.0 | freerdp-libs-debuginfo | 2:2.4.1-3.el9_0.7 |
| Red Hat rhel e4s 9.0 | libwinpr | 2:2.4.1-3.el9_0.7 |
| Red Hat rhel e4s 9.0 | libwinpr-debuginfo | 2:2.4.1-3.el9_0.7 |
| Red Hat rhel e4s 9.2 | freerdp | 2:2.4.1-6.el9_2.9 |
| Red Hat rhel e4s 9.2 | freerdp-debuginfo | 2:2.4.1-6.el9_2.9 |
| Red Hat rhel e4s 9.2 | freerdp-debugsource | 2:2.4.1-6.el9_2.9 |
| Red Hat rhel e4s 9.2 | freerdp-libs | 2:2.4.1-6.el9_2.9 |
| Red Hat rhel e4s 9.2 | freerdp-libs-debuginfo | 2:2.4.1-6.el9_2.9 |
| Red Hat rhel e4s 9.2 | libwinpr | 2:2.4.1-6.el9_2.9 |
| Red Hat rhel e4s 9.2 | libwinpr-debuginfo | 2:2.4.1-6.el9_2.9 |
| Red Hat rhel els 7 | freerdp | 0:2.1.1-5.el7_9.9 |
| Red Hat rhel els 7 | freerdp-debuginfo | 0:2.1.1-5.el7_9.9 |
| Red Hat rhel els 7 | freerdp-devel | 0:2.1.1-5.el7_9.9 |
| Red Hat rhel els 7 | freerdp-libs | 0:2.1.1-5.el7_9.9 |
| Red Hat rhel els 7 | libwinpr | 0:2.1.1-5.el7_9.9 |
| Red Hat rhel els 7 | libwinpr-devel | 0:2.1.1-5.el7_9.9 |
| Red Hat rhel eus 9.4 | freerdp | 2:2.11.2-1.el9_4.8 |
| Red Hat rhel eus 9.4 | freerdp-debuginfo | 2:2.11.2-1.el9_4.8 |
| Red Hat rhel eus 9.4 | freerdp-debugsource | 2:2.11.2-1.el9_4.8 |
| Red Hat rhel eus 9.4 | freerdp-devel | 2:2.11.2-1.el9_4.8 |
| Red Hat rhel eus 9.4 | freerdp-libs | 2:2.11.2-1.el9_4.8 |
| Red Hat rhel eus 9.4 | freerdp-libs-debuginfo | 2:2.11.2-1.el9_4.8 |
| Red Hat rhel eus 9.4 | libwinpr | 2:2.11.2-1.el9_4.8 |
| Red Hat rhel eus 9.4 | libwinpr-debuginfo | 2:2.11.2-1.el9_4.8 |
| Red Hat rhel eus 9.4 | libwinpr-devel | 2:2.11.2-1.el9_4.8 |
| Red Hat rhel eus 9.6 | freerdp | 2:2.11.7-1.el9_6.10 |
| Red Hat rhel eus 9.6 | freerdp-debuginfo | 2:2.11.7-1.el9_6.10 |
| Red Hat rhel eus 9.6 | freerdp-debugsource | 2:2.11.7-1.el9_6.10 |
| Red Hat rhel eus 9.6 | freerdp-devel | 2:2.11.7-1.el9_6.10 |
| Red Hat rhel eus 9.6 | freerdp-libs | 2:2.11.7-1.el9_6.10 |
| Red Hat rhel eus 9.6 | freerdp-libs-debuginfo | 2:2.11.7-1.el9_6.10 |
| Red Hat rhel eus 9.6 | libwinpr | 2:2.11.7-1.el9_6.10 |
| Red Hat rhel eus 9.6 | libwinpr-debuginfo | 2:2.11.7-1.el9_6.10 |
| Red Hat rhel eus 9.6 | libwinpr-devel | 2:2.11.7-1.el9_6.10 |
| Red Hat rhel eus long life 8.4 | freerdp | 2:2.2.0-14.el8_4 |
| Red Hat rhel eus long life 8.4 | freerdp-debuginfo | 2:2.2.0-14.el8_4 |
| Red Hat rhel eus long life 8.4 | freerdp-debugsource | 2:2.2.0-14.el8_4 |
| Red Hat rhel eus long life 8.4 | freerdp-libs | 2:2.2.0-14.el8_4 |
| Red Hat rhel eus long life 8.4 | freerdp-libs-debuginfo | 2:2.2.0-14.el8_4 |
| Red Hat rhel eus long life 8.4 | libwinpr | 2:2.2.0-14.el8_4 |
| Red Hat rhel eus long life 8.4 | libwinpr-debuginfo | 2:2.2.0-14.el8_4 |
| Red Hat rhel eus long life 8.4 | libwinpr-devel | 2:2.2.0-14.el8_4 |
| Red Hat rhel tus 8.6 | freerdp | 2:2.2.0-7.el8_6.8 |
| Red Hat rhel tus 8.6 | freerdp-debuginfo | 2:2.2.0-7.el8_6.8 |
| Red Hat rhel tus 8.6 | freerdp-debugsource | 2:2.2.0-7.el8_6.8 |
| Red Hat rhel tus 8.6 | freerdp-libs | 2:2.2.0-7.el8_6.8 |
| Red Hat rhel tus 8.6 | freerdp-libs-debuginfo | 2:2.2.0-7.el8_6.8 |
| Red Hat rhel tus 8.6 | libwinpr | 2:2.2.0-7.el8_6.8 |
| Red Hat rhel tus 8.6 | libwinpr-debuginfo | 2:2.2.0-7.el8_6.8 |
| Red Hat rhel tus 8.6 | libwinpr-devel | 2:2.2.0-7.el8_6.8 |
| Red Hat rhel tus 8.8 | freerdp | 2:2.2.0-12.el8_8.8 |
| Red Hat rhel tus 8.8 | freerdp-debuginfo | 2:2.2.0-12.el8_8.8 |
| Red Hat rhel tus 8.8 | freerdp-debugsource | 2:2.2.0-12.el8_8.8 |
| Red Hat rhel tus 8.8 | freerdp-libs | 2:2.2.0-12.el8_8.8 |
| Red Hat rhel tus 8.8 | freerdp-libs-debuginfo | 2:2.2.0-12.el8_8.8 |
| Red Hat rhel tus 8.8 | libwinpr | 2:2.2.0-12.el8_8.8 |
| Red Hat rhel tus 8.8 | libwinpr-debuginfo | 2:2.2.0-12.el8_8.8 |
| Red Hat rhel tus 8.8 | libwinpr-devel | 2:2.2.0-12.el8_8.8 |
| Rocky Linux 8 | freerdp | 2:2.11.7-9.el8_10 |
| Rocky Linux 9 | freerdp | 2:2.11.7-1.el9_7.7 |
| Rocky Linux 9 | freerdp | 2:2.11.7-7.el9_8.3 |
| SUSE Linux Enterprise Module for Package Hub 15 SP7 | freerdp | 3.10.3-150700.3.17.1 |
| SUSE Linux Enterprise Workstation Extension 15 SP7 | freerdp | 3.10.3-150700.3.17.1 |
| 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 | 3.5.1+dfsg1-0ubuntu1.4 |
| Ubuntu 24.04 LTS | freerdp3 | 3.30.0+dfsg-0ubuntu0.24.04.1 |
| Ubuntu 24.04 LTS | freerdp3 | 3.5.1+dfsg1-0ubuntu1.5 |
| Ubuntu 25.10 | freerdp3 | no fix |
| Ubuntu 25.10 | freerdp3 | 3.16.0+dfsg-2ubuntu0.3 |
| Ubuntu 25.10 | freerdp3 | 3.16.0+dfsg-2ubuntu0.4 |
| 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 | freerdp2 | 2.11.7-8.1 |