CVE-2026-31883
Fixed in a distro release EPSS <1%CVSS 6.5
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.24.0, a size_t underflow in the IMA-ADPCM and MS-ADPCM audio decoders leads to heap-buffer-overflow write via the RDPSND audio channel. In libfreerdp/codec/dsp.c, the IMA-ADPCM and MS-ADPCM decoders subtract block header sizes from a size_t variable without checking for underflow. When nBlockAlign (received from the server) is set such that size % block_size == 0 triggers the header parsing at a point where size is smaller than the header (4 or 8 bytes), the subtraction wraps size to ~SIZE_MAX. The while (size > 0) loop then continues for an astronomical number of iterations. This vulnerability is fixed in 3.24.0.
Products: FreeRDP
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux 10 | freerdp | 2:3.10.3-5.el10_1.8 |
| AlmaLinux 10 | freerdp-devel | 2:3.10.3-5.el10_1.8 |
| AlmaLinux 10 | freerdp-libs | 2:3.10.3-5.el10_1.8 |
| AlmaLinux 10 | freerdp-server | 2:3.10.3-5.el10_1.8 |
| AlmaLinux 10 | libwinpr | 2:3.10.3-5.el10_1.8 |
| AlmaLinux 10 | libwinpr-devel | 2:3.10.3-5.el10_1.8 |
| 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 | 2:2.11.7-7.el9_8.3 |
| AlmaLinux 9 | libwinpr | 2:2.11.7-1.el9_7.7 |
| 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.amzn2.0.9 |
| Amazon Linux 2 | freerdp-devel | 2:2.11.7-1.amzn2.0.9 |
| Amazon Linux 2 | freerdp-libs | 2:2.11.7-1.amzn2.0.9 |
| Amazon Linux 2 | libwinpr | 2:2.11.7-1.amzn2.0.9 |
| Amazon Linux 2 | libwinpr-devel | 2:2.11.7-1.amzn2.0.9 |
| Amazon Linux 2023 | freerdp | 2:3.6.3-1.amzn2023.0.8 |
| Amazon Linux 2023 | freerdp-devel | 2:3.6.3-1.amzn2023.0.8 |
| Amazon Linux 2023 | freerdp-libs | 2:3.6.3-1.amzn2023.0.8 |
| Amazon Linux 2023 | freerdp-server | 2:3.6.3-1.amzn2023.0.8 |
| Amazon Linux 2023 | libwinpr | 2:3.6.3-1.amzn2023.0.8 |
| Amazon Linux 2023 | libwinpr-devel | 2:3.6.3-1.amzn2023.0.8 |
| Debian 12 | freerdp2 | no fix |
| Debian 13 | freerdp3 | 3.15.0+dfsg-2.1+deb13u2 |
| Debian 14 | freerdp3 | 3.24.0+dfsg-1 |
| Red Hat Enterprise Linux 10.1 | freerdp | 2:3.10.3-5.el10_1.8 |
| Red Hat Enterprise Linux 10.1 | freerdp-debuginfo | 2:3.10.3-5.el10_1.8 |
| Red Hat Enterprise Linux 10.1 | freerdp-debugsource | 2:3.10.3-5.el10_1.8 |
| Red Hat Enterprise Linux 10.1 | freerdp-devel | 2:3.10.3-5.el10_1.8 |
| Red Hat Enterprise Linux 10.1 | freerdp-libs | 2:3.10.3-5.el10_1.8 |
| Red Hat Enterprise Linux 10.1 | freerdp-libs-debuginfo | 2:3.10.3-5.el10_1.8 |
| Red Hat Enterprise Linux 10.1 | freerdp-server | 2:3.10.3-5.el10_1.8 |
| Red Hat Enterprise Linux 10.1 | freerdp-server-debuginfo | 2:3.10.3-5.el10_1.8 |
| Red Hat Enterprise Linux 10.1 | libwinpr | 2:3.10.3-5.el10_1.8 |
| Red Hat Enterprise Linux 10.1 | libwinpr-debuginfo | 2:3.10.3-5.el10_1.8 |
| Red Hat Enterprise Linux 10.1 | libwinpr-devel | 2:3.10.3-5.el10_1.8 |
| Red Hat Enterprise Linux 10.2 | freerdp | 2:3.10.3-12.el10_2.5 |
| Red Hat Enterprise Linux 10.2 | freerdp-debuginfo | 2:3.10.3-12.el10_2.5 |
| Red Hat Enterprise Linux 10.2 | freerdp-debugsource | 2:3.10.3-12.el10_2.5 |
| Red Hat Enterprise Linux 10.2 | freerdp-devel | 2:3.10.3-12.el10_2.5 |
| Red Hat Enterprise Linux 10.2 | freerdp-libs | 2:3.10.3-12.el10_2.5 |
| Red Hat Enterprise Linux 10.2 | freerdp-libs-debuginfo | 2:3.10.3-12.el10_2.5 |
| Red Hat Enterprise Linux 10.2 | freerdp-server | 2:3.10.3-12.el10_2.5 |
| Red Hat Enterprise Linux 10.2 | freerdp-server-debuginfo | 2:3.10.3-12.el10_2.5 |
| Red Hat Enterprise Linux 10.2 | libwinpr | 2:3.10.3-12.el10_2.5 |
| Red Hat Enterprise Linux 10.2 | libwinpr-debuginfo | 2:3.10.3-12.el10_2.5 |
| Red Hat Enterprise Linux 10.2 | libwinpr-devel | 2:3.10.3-12.el10_2.5 |
| 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 | 2:2.11.7-7.el9_8.3 |
| Red Hat Enterprise Linux 9 | freerdp | 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-debuginfo | 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-debugsource | 2:2.11.7-1.el9_7.7 |
| 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 | 2:2.11.7-1.el9_7.7 |
| Red Hat Enterprise Linux 9 | libwinpr | 2:2.11.7-7.el9_8.3 |
| Red Hat Enterprise Linux 9 | libwinpr-debuginfo | 2:2.11.7-7.el9_8.3 |
| Red Hat Enterprise Linux 9 | libwinpr-debuginfo | 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 Enterprise Linux 9 | libwinpr-devel | 2:2.11.7-1.el9_7.7 |
| Red Hat Enterprise Linux eus 10.0 | freerdp | 2:3.10.3-3.el10_0.7 |
| Red Hat Enterprise Linux eus 10.0 | freerdp-debuginfo | 2:3.10.3-3.el10_0.7 |
| Red Hat Enterprise Linux eus 10.0 | freerdp-debugsource | 2:3.10.3-3.el10_0.7 |
| Red Hat Enterprise Linux eus 10.0 | freerdp-devel | 2:3.10.3-3.el10_0.7 |
| Red Hat Enterprise Linux eus 10.0 | freerdp-libs | 2:3.10.3-3.el10_0.7 |
| Red Hat Enterprise Linux eus 10.0 | freerdp-libs-debuginfo | 2:3.10.3-3.el10_0.7 |
| Red Hat Enterprise Linux eus 10.0 | freerdp-server | 2:3.10.3-3.el10_0.7 |
| Red Hat Enterprise Linux eus 10.0 | freerdp-server-debuginfo | 2:3.10.3-3.el10_0.7 |
| Red Hat Enterprise Linux eus 10.0 | libwinpr | 2:3.10.3-3.el10_0.7 |
| Red Hat Enterprise Linux eus 10.0 | libwinpr-debuginfo | 2:3.10.3-3.el10_0.7 |
| Red Hat Enterprise Linux eus 10.0 | libwinpr-devel | 2:3.10.3-3.el10_0.7 |
| 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 10 | freerdp | 2:3.10.3-5.el10_1.8 |
| Rocky Linux 10 | freerdp | 2:3.10.3-12.el10_2.5 |
| 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 | 3.10.3-150700.3.9.1 |
| SUSE Linux Enterprise Module for Package Hub 15 SP7 | freerdp | 2.11.2-150600.4.18.1 |
| SUSE Linux Enterprise Module for Package Hub 15 SP7 | freerdp | 2.4.0-150400.3.47.1 |
| SUSE Linux Enterprise Module for Package Hub 15 SP7 | freerdp2 | 2.11.7-150700.3.14.1 |
| SUSE Linux Enterprise Server 12 SP5-LTSS | freerdp | 2.1.2-12.63.1 |
| SUSE Linux Enterprise Server LTSS Extended Security 12 SP5 | freerdp | 2.1.2-12.63.1 |
| SUSE Linux Enterprise Workstation Extension 15 SP7 | freerdp | 3.10.3-150700.3.9.1 |
| SUSE Linux Enterprise Workstation Extension 15 SP7 | freerdp2 | 2.11.7-150700.3.14.1 |
| 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 | 3.30.0+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 Leap 15.6 | freerdp | 2.11.2-150600.4.18.1 |
| openSUSE Tumbleweed | freerdp | 3.24.1-1.1 |
| openSUSE Tumbleweed | freerdp2 | 2.11.7-6.1 |