Description
FreeRDP is a free implementation of the Remote Desktop Protocol. Prior to version 3.21.0, a client-side heap buffer overflow occurs in the FreeRDP client’s `gdi_SurfaceToSurface` path due to a mismatch between destination rectangle clamping and the actual copy size. A malicious server can trigger a client‑side heap buffer overflow, causing a crash (DoS) and potential heap corruption with code‑execution risk depending on allocator behavior and surrounding heap layout. Version 3.21.0 contains a patch for the issue.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| FreeRDP | FreeRDP | < 3.21.0 | — |
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 | 3.21.0+dfsg-1 | — |
| Debian 13 | freerdp3 | 3.15.0+dfsg-2.1+deb13u1 | — |
| Debian 12 | freerdp2 | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 25.10 | freerdp3 | 3.16.0+dfsg-2ubuntu0.3 | USN-8105-1 |
| Ubuntu 24.04 LTS | freerdp3 | 3.5.1+dfsg1-0ubuntu1.4 | USN-8105-1 |
| Ubuntu 22.04 LTS | freerdp2 | 2.6.1+dfsg1-3ubuntu2.8 | USN-8004-1 |
| Ubuntu 18.04 LTS | freerdp | No fix yet | — |
| Ubuntu 16.04 LTS | freerdp | No fix yet | — |
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~esm3 | USN-8004-1 |
| Ubuntu Pro 20.04 LTS | freerdp2 | 2.6.1+dfsg1-0ubuntu0.20.04.2+esm1 | USN-8004-1 |
| Ubuntu Pro 18.04 LTS | freerdp2 | 2.2.0+dfsg1-0ubuntu0.18.04.4+esm3 | USN-8004-1 |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10 | freerdp +5 | 2:3.10.3-5.el10_1.1 | RHSA-2026:2222 |
| RHEL 9 | freerdp +4 | 2:2.11.7-1.el9_7.1 | RHSA-2026:2048 |
| RHEL 8 | freerdp +4 | 2:2.11.7-2.el8_10 | RHSA-2026:2081 |
Show 14 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_0.1 | RHSA-2026:2952 |
| RHEL 9.6 EUS | freerdp +4 | 2:2.11.7-1.el9_6.1 | RHSA-2026:3037 |
| RHEL 9.4 EUS | freerdp +4 | 2:2.11.2-1.el9_4.1 | RHSA-2026:2736 |
| RHEL 9.2 E4S | freerdp +2 | 2:2.4.1-6.el9_2.2 | RHSA-2026:2824 |
| RHEL 9.0 E4S | freerdp +2 | 2:2.4.1-3.el9_0 | RHSA-2026:2770 |
| RHEL 8.8 TUS | freerdp +3 | 2:2.2.0-12.el8_8.1 | RHSA-2026:3041 |
| RHEL 8.8 E4S | freerdp +3 | 2:2.2.0-12.el8_8.1 | RHSA-2026:3041 |
| RHEL 8.6 TUS | freerdp +3 | 2:2.2.0-7.el8_6.1 | RHSA-2026:3036 |
| RHEL 8.6 E4S | freerdp +3 | 2:2.2.0-7.el8_6.1 | RHSA-2026:3036 |
| RHEL 8.6 AUS | freerdp +3 | 2:2.2.0-7.el8_6.1 | RHSA-2026:3036 |
| RHEL 8.4 EUS Long Life | freerdp +3 | 2:2.2.0-7.el8_4 | RHSA-2026:3038 |
| RHEL 8.4 AUS | freerdp +3 | 2:2.2.0-7.el8_4 | RHSA-2026:3038 |
| RHEL 8.2 AUS | freerdp +3 | 2:2.0.0-46.rc4.el8_2.6 | RHSA-2026:3039 |
| RHEL 7 ELS | freerdp +4 | 2.1.1-5.el7_9.1 | RHSA-2026:2714 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 10 | freerdp +5 | 2:3.10.3-5.el10_1.1 | ALSA-2026:2222 |
| AlmaLinux 9 | freerdp +4 | 2:2.11.7-1.el9_7.1 | ALSA-2026:2048 |
| AlmaLinux 8 | freerdp +4 | 2:2.11.7-2.el8_10 | ALSA-2026:2081 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 10 | freerdp | 2:3.10.3-5.el10_1.1 | RLSA-2026:2222 |
| Rocky Linux 9 | freerdp | 2:2.11.7-1.el9_7.1 | RLSA-2026:2048 |
| Rocky Linux 8 | freerdp | 2:2.11.7-2.el8_10 | RLSA-2026:2081 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | freerdp | 2.4.0-150400.3.35.1 | SUSE-SU-2026:0421-1, SUSE-SU-2026:0417-1, SUSE-SU-2026:0345-1 |
| SLES 15 SP7 | freerdp2 | 2.11.7-150700.3.3.1 | SUSE-SU-2026:0449-1 |
| SLES 12 SP5 | freerdp | 2.1.2-12.52.1 | SUSE-SU-2026:0559-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | freerdp | 3.21.0-1.1 | openSUSE-SU-2026:10107-1 |
| openSUSE Tumbleweed | freerdp2 | 2.11.7-4.1 | openSUSE-SU-2026:10176-1 |
| openSUSE Leap 16.0 | freerdp | 3.22.0-160000.1.1 | openSUSE-SU-2026:20339-1 |
| openSUSE Leap 16.0 | freerdp2 | 2.11.7-bp160.2.1 | openSUSE-SU-2026:20320-1 |
| openSUSE Leap 15.6 | freerdp | 2.11.2-150600.4.6.1 | SUSE-SU-2026:0417-1 |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | freerdp | 3.21.0-r0 | — |
| Alpine v3.23 | freerdp | 3.22.0-r0 | — |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | freerdp +5 | 2:3.6.3-1.amzn2023.0.2 | ALAS2023-2026-1379 |
| Amazon Linux 2 | freerdp +4 | 2:2.11.7-1.amzn2.0.3 | ALAS2-2026-3162 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 10 | freerdp +5 | 2:3.10.3-5.el10_1.1 | ELSA-2026-2222 |
| Oracle Linux 9 | freerdp +4 | 2:2.11.7-1.el9_7.1 | ELSA-2026-2048 |
| Oracle Linux 8 | freerdp +4 | 2:2.11.7-2.el8_10 | ELSA-2026-2081 |
| Oracle Linux 7 | freerdp +4 | 2.1.1-5.0.1.el7_9 | ELSA-2026-2714 |
Wolfi
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Wolfi rolling | freerdp-dev +1 | No fix yet | — |
Advisories 37
- ALSA-2026:2222 Important: freerdp security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:2048 Important: freerdp security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:2081 Important: freerdp security update AlmaLinux Security Advisories · Oct 29, 2026
- USN-8105-1 freerdp3 vulnerabilities Ubuntu Security Notices (USN) · Oct 27, 2026
- USN-8004-1 freerdp2 vulnerabilities Ubuntu Security Notices (USN) · Oct 27, 2026
- WID-SEC-2026-0145 FreeRDP: Mehrere Schwachstellen ermöglichen DoS und Codeausführung BSI CERT-Bund (WID) · Sep 28, 2026
- RHSA-2026:3041 Red Hat Security Advisory: freerdp security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2026:3038 Red Hat Security Advisory: freerdp security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2026:3039 Red Hat Security Advisory: freerdp security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2026:3037 Red Hat Security Advisory: freerdp security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2026:3036 Red Hat Security Advisory: freerdp security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2026:2952 Red Hat Security Advisory: freerdp security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2026:2824 Red Hat Security Advisory: freerdp security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2026:2770 Red Hat Security Advisory: freerdp security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2026:2736 Red Hat Security Advisory: freerdp security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2026:2714 Red Hat Security Advisory: freerdp security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2026:2222 Red Hat Security Advisory: freerdp security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2026:2081 Red Hat Security Advisory: freerdp security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- RHSA-2026:2048 Red Hat Security Advisory: freerdp security update Red Hat Security Advisories (RHSA) · Jun 30, 2026
- openSUSE-SU-2026:20339-1 Security update for freerdp SUSE / openSUSE Security Updates · Mar 23, 2026
- openSUSE-SU-2026:10176-1 freerdp2-2.11.7-4.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- openSUSE-SU-2026:10107-1 freerdp-3.21.0-1.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026
- SUSE-SU-2026:0559-1 Security update for freerdp SUSE / openSUSE Security Updates · Mar 23, 2026
- ELSA-2026-2714 Important: freerdp security update (Oracle Linux 7) Oracle Linux Security Advisories (ELSA) · Mar 16, 2026
- openSUSE-SU-2026:20320-1 Security update for freerdp2 SUSE / openSUSE Security Updates · Mar 5, 2026
- ALAS2-2026-3162 Important: freerdp security update (Amazon Linux 2) Amazon Linux Security Center (ALAS) · Feb 18, 2026
- SUSE-SU-2026:0449-1 Security update for freerdp2 SUSE / openSUSE Security Updates · Feb 12, 2026
- SUSE-SU-2026:0417-1 Security update for freerdp SUSE / openSUSE Security Updates · Feb 11, 2026
- SUSE-SU-2026:0421-1 Security update for freerdp SUSE / openSUSE Security Updates · Feb 11, 2026
- RLSA-2026:2222 Important: freerdp security update Rocky Linux Security Advisories · Feb 11, 2026
- ELSA-2026-2222 Important: freerdp security update (Oracle Linux 10) Oracle Linux Security Advisories (ELSA) · Feb 8, 2026
- RLSA-2026:2048 Important: freerdp security update Rocky Linux Security Advisories · Feb 7, 2026
- RLSA-2026:2081 Important: freerdp security update Rocky Linux Security Advisories · Feb 6, 2026
- ALAS2023-2026-1379 Important: freerdp security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Feb 5, 2026
- ELSA-2026-2048 Important: freerdp security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Feb 5, 2026
- ELSA-2026-2081 Important: freerdp security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Feb 5, 2026
- SUSE-SU-2026:0345-1 Security update for freerdp SUSE / openSUSE Security Updates · Feb 4, 2026