Description
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to 3.26.0, FreeRDP's planar bitmap decoder has an out-of-bounds heap write when decoding RLE planar data. In libfreerdp/codec/planar.c, freerdp_bitmap_decompress_planar() validates the X destination coordinate nXDst against the caller-provided destination stride (nDstStep) even when it is writing into the internal temp buffer pTempData. An attacker can bypass the check with a large nDstStep and a large nXDst, causing planar_decompress_plane_rle() to write past the end of pTempData. This vulnerability is fixed in 3.26.0.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| FreeRDP | FreeRDP | < 3.26.0 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | freerdp3 | 3.26.0+dfsg-1 | — |
| Debian 13 | freerdp3 | No fix yet | — |
| Debian 12 | freerdp2 | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.04 LTS | freerdp3 | 3.24.2+dfsg-1ubuntu1.1 | — |
| Ubuntu 25.10 | freerdp3 | 3.16.0+dfsg-2ubuntu0.5 | — |
| Ubuntu 24.04 LTS | freerdp3 | 3.5.1+dfsg1-0ubuntu1.6 | — |
| Ubuntu 22.04 LTS | freerdp2 | 2.6.1+dfsg1-3ubuntu2.11 | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 24.04 LTS | freerdp2 | 2.11.5+dfsg1-1ubuntu0.1~esm6 | — |
| Ubuntu Pro 20.04 LTS | freerdp2 | 2.6.1+dfsg1-0ubuntu0.20.04.2+esm4 | — |
| Ubuntu Pro 18.04 LTS | freerdp2 | 2.2.0+dfsg1-0ubuntu0.18.04.4+esm6 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10 | freerdp +5 | 2:3.10.3-12.el10_2.6 | RHSA-2026:36203 |
| RHEL 9 | freerdp +4 | 2:2.11.7-7.el9_8.4 | RHSA-2026:37207 |
| RHEL 8 | freerdp +4 | 2:2.11.7-10.el8_10 | RHSA-2026:38501 |
Show 11 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10.0 EUS | freerdp +5 | 2:3.10.3-3.el10_0.9 | RHSA-2026:46393 |
| RHEL 9.6 EUS | freerdp +4 | 2:2.11.7-1.el9_6.11 | RHSA-2026:47049 |
| RHEL 9.4 E4S | freerdp +2 | 2:2.11.2-1.el9_4.9 | RHSA-2026:46383 |
| RHEL 9.2 E4S | freerdp +2 | 2:2.4.1-6.el9_2.10 | RHSA-2026:47048 |
| RHEL 8.8 TUS | freerdp +3 | 2:2.2.0-12.el8_8.9 | RHSA-2026:46388 |
| RHEL 8.8 E4S | freerdp +3 | 2:2.2.0-12.el8_8.9 | RHSA-2026:46388 |
| RHEL 8.6 EUS Long Life | freerdp +3 | 2:2.2.0-7.el8_6.9 | RHSA-2026:46389 |
| RHEL 8.6 AUS | freerdp +3 | 2:2.2.0-7.el8_6.9 | RHSA-2026:46389 |
| RHEL 8.4 EUS Long Life | freerdp +3 | 2:2.2.0-14.el8_4.1 | RHSA-2026:46384 |
| RHEL 8.4 AUS | freerdp +3 | 2:2.2.0-14.el8_4.1 | RHSA-2026:46384 |
| RHEL 7 ELS | freerdp +4 | 2.1.1-5.el7_9.10 | RHSA-2026:47201 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 10 | freerdp +5 | 2:3.10.3-12.el10_2.6 | ALSA-2026:36203 |
| AlmaLinux 9 | freerdp +4 | 2:2.11.7-7.el9_8.4 | ALSA-2026:37207 |
| AlmaLinux 8 | freerdp +4 | 2:2.11.7-10.el8_10 | ALSA-2026:38501 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 10 | freerdp | 2:3.10.3-12.el10_2.6 | RLSA-2026:36203 |
| Rocky Linux 9 | freerdp | 2:2.11.7-7.el9_8.4 | RLSA-2026:37207 |
| Rocky Linux 8 | freerdp | 2:2.11.7-10.el8_10 | RLSA-2026:38501 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | freerdp | 3.10.3-150700.3.17.1 | SUSE-SU-2026:3562-1 |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | freerdp | 3.26.0-160000.1.1 | SUSE-SU-2026:22194-1 |
| SLES 16.0 | freerdp | 3.26.0-160000.1.1 | SUSE-SU-2026:22194-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | freerdp | 3.26.0-3.1 | openSUSE-SU-2026:10948-1 |
| openSUSE Leap 16.0 | freerdp | 3.26.0-160000.1.1 | openSUSE-SU-2026:21116-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | freerdp +5 | 2:3.6.3-1.amzn2023.0.12 | ALAS2023-2026-1822 |
| Amazon Linux 2 | freerdp +4 | 2:2.11.7-1.amzn2.0.12 | ALAS2-2026-3356 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 10 | freerdp +5 | 2:3.10.3-12.el10_2.6 | ELSA-2026-36203 |
| Oracle Linux 9 | freerdp +4 | 2:2.11.7-7.el9_8.4 | ELSA-2026-37207 |
| Oracle Linux 8 | freerdp +4 | 2:2.11.7-10.el8_10 | ELSA-2026-38501 |
Advisories 27
- ALSA-2026:37207 Important: freerdp security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:36203 Important: freerdp security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:38501 Important: freerdp security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2026:47201 Red Hat Security Advisory: freerdp security update Red Hat Security Advisories (RHSA) · Oct 7, 2026
- RHSA-2026:47048 Red Hat Security Advisory: freerdp security update Red Hat Security Advisories (RHSA) · Oct 7, 2026
- RHSA-2026:47049 Red Hat Security Advisory: freerdp security update Red Hat Security Advisories (RHSA) · Oct 7, 2026
- RHSA-2026:46393 Red Hat Security Advisory: freerdp security update Red Hat Security Advisories (RHSA) · Oct 7, 2026
- RHSA-2026:46389 Red Hat Security Advisory: freerdp security update Red Hat Security Advisories (RHSA) · Oct 7, 2026
- RHSA-2026:46384 Red Hat Security Advisory: freerdp security update Red Hat Security Advisories (RHSA) · Oct 7, 2026
- RHSA-2026:46388 Red Hat Security Advisory: freerdp security update Red Hat Security Advisories (RHSA) · Oct 7, 2026
- RHSA-2026:46383 Red Hat Security Advisory: freerdp security update Red Hat Security Advisories (RHSA) · Oct 7, 2026
- RHSA-2026:38501 Red Hat Security Advisory: freerdp security update Red Hat Security Advisories (RHSA) · Oct 7, 2026
- RHSA-2026:37207 Red Hat Security Advisory: freerdp security update Red Hat Security Advisories (RHSA) · Oct 7, 2026
- RHSA-2026:36203 Red Hat Security Advisory: freerdp security update Red Hat Security Advisories (RHSA) · Oct 7, 2026
- WID-SEC-2026-2264 FreeRDP: Schwachstelle ermöglicht Codeausführung BSI CERT-Bund (WID) · Sep 1, 2026
- SUSE-SU-2026:3562-1 Security update for freerdp SUSE / openSUSE Security Updates · Aug 12, 2026
- ELSA-2026-36203 Important: freerdp security update (Oracle Linux 10) Oracle Linux Security Advisories (ELSA) · Jul 16, 2026
- RLSA-2026:38501 Important: freerdp security update Rocky Linux Security Advisories · Jul 14, 2026
- ELSA-2026-38501 Important: freerdp security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Jul 13, 2026
- RLSA-2026:37207 Important: freerdp security update Rocky Linux Security Advisories · Jul 10, 2026
- ELSA-2026-37207 Important: freerdp security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Jul 10, 2026
- RLSA-2026:36203 Important: freerdp security update Rocky Linux Security Advisories · Jul 8, 2026
- openSUSE-SU-2026:21116-1 Security update for freerdp SUSE / openSUSE Security Updates · Jun 30, 2026
- SUSE-SU-2026:22194-1 Security update for freerdp SUSE / openSUSE Security Updates · Jun 24, 2026
- ALAS2-2026-3356 Important: freerdp security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Jun 22, 2026
- ALAS2023-2026-1822 Important: freerdp security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Jun 22, 2026
- openSUSE-SU-2026:10948-1 freerdp-3.26.0-3.1 on GA media SUSE / openSUSE Security Updates · Jun 4, 2026