CVE-2026-55827
Fixed in a distro release EPSS <1%CVSS 7.5
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.27.1, FreeRDP clients launched with the non-default /cache:codec:rfx option pass desktop stride and height to RemoteFX decoding for Cache Bitmap V3 data while allocating bitmap->data only for the smaller DstWidth and DstHeight in gdi_Bitmap_Decompress, allowing a malicious RDP server to trigger a heap out-of-bounds write with attacker-controlled offset and content. This issue is fixed in version 3.27.1.
Products: FreeRDP
Distro releases
| Release | Package | Fixed in |
|---|---|---|
| AlmaLinux 10 | freerdp | 2:3.10.3-12.el10_2.7 |
| AlmaLinux 10 | freerdp-devel | 2:3.10.3-12.el10_2.7 |
| AlmaLinux 10 | freerdp-libs | 2:3.10.3-12.el10_2.7 |
| AlmaLinux 10 | freerdp-server | 2:3.10.3-12.el10_2.7 |
| AlmaLinux 10 | libwinpr | 2:3.10.3-12.el10_2.7 |
| AlmaLinux 10 | libwinpr-devel | 2:3.10.3-12.el10_2.7 |
| 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 | 3.27.1+dfsg-1 |
| Red Hat Enterprise Linux 10.2 | freerdp | 2:3.10.3-12.el10_2.7 |
| Red Hat Enterprise Linux 10.2 | freerdp-debuginfo | 2:3.10.3-12.el10_2.7 |
| Red Hat Enterprise Linux 10.2 | freerdp-debugsource | 2:3.10.3-12.el10_2.7 |
| Red Hat Enterprise Linux 10.2 | freerdp-devel | 2:3.10.3-12.el10_2.7 |
| Red Hat Enterprise Linux 10.2 | freerdp-libs | 2:3.10.3-12.el10_2.7 |
| Red Hat Enterprise Linux 10.2 | freerdp-libs-debuginfo | 2:3.10.3-12.el10_2.7 |
| Red Hat Enterprise Linux 10.2 | freerdp-server | 2:3.10.3-12.el10_2.7 |
| Red Hat Enterprise Linux 10.2 | freerdp-server-debuginfo | 2:3.10.3-12.el10_2.7 |
| Red Hat Enterprise Linux 10.2 | libwinpr | 2:3.10.3-12.el10_2.7 |
| Red Hat Enterprise Linux 10.2 | libwinpr-debuginfo | 2:3.10.3-12.el10_2.7 |
| Red Hat Enterprise Linux 10.2 | libwinpr-devel | 2:3.10.3-12.el10_2.7 |
| Red Hat Enterprise Linux eus 10.0 | freerdp | 2:3.10.3-3.el10_0.10 |
| Red Hat Enterprise Linux eus 10.0 | freerdp-debuginfo | 2:3.10.3-3.el10_0.10 |
| Red Hat Enterprise Linux eus 10.0 | freerdp-debugsource | 2:3.10.3-3.el10_0.10 |
| Red Hat Enterprise Linux eus 10.0 | freerdp-devel | 2:3.10.3-3.el10_0.10 |
| Red Hat Enterprise Linux eus 10.0 | freerdp-libs | 2:3.10.3-3.el10_0.10 |
| Red Hat Enterprise Linux eus 10.0 | freerdp-libs-debuginfo | 2:3.10.3-3.el10_0.10 |
| Red Hat Enterprise Linux eus 10.0 | freerdp-server | 2:3.10.3-3.el10_0.10 |
| Red Hat Enterprise Linux eus 10.0 | freerdp-server-debuginfo | 2:3.10.3-3.el10_0.10 |
| Red Hat Enterprise Linux eus 10.0 | libwinpr | 2:3.10.3-3.el10_0.10 |
| Red Hat Enterprise Linux eus 10.0 | libwinpr-debuginfo | 2:3.10.3-3.el10_0.10 |
| Red Hat Enterprise Linux eus 10.0 | libwinpr-devel | 2:3.10.3-3.el10_0.10 |
| Rocky Linux 10 | freerdp | 2:3.10.3-12.el10_2.7 |
| 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 |