Description
FreeRDP is a free implementation of the Remote Desktop Protocol. Versions prior to 3.25.0 have an off-by-one in the path traversal filter in `channels/drive/client/drive_file.c`. The `contains_dotdot()` function catches `../` and `..\` mid-path but misses `..` when it's the last component with no trailing separator. A rogue RDP server can read, list, or write files one directory above the client's shared folder through RDPDR requests. This requires the victim to connect with drive redirection enabled. Version 3.25.0 patches the issue.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| FreeRDP | FreeRDP | < 3.25.0 | — |
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 | 3.25.0+dfsg-1 | — |
| Debian 13 | freerdp3 | 3.15.0+dfsg-2.1+deb13u3 | — |
| Debian 12 | freerdp2 | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.04 LTS | freerdp3 | 3.30.0+dfsg-0ubuntu0.26.04.1 | USN-8561-1 |
| Ubuntu 25.10 | freerdp3 | No fix yet | — |
| Ubuntu 24.04 LTS | freerdp3 | 3.30.0+dfsg-0ubuntu0.24.04.1 | USN-8561-1 |
| Ubuntu 22.04 LTS | freerdp2 | No fix yet | — |
| Ubuntu 18.04 LTS | freerdp | No fix yet | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | freerdp | No fix yet | — |
| Ubuntu Pro 24.04 LTS | freerdp2 | No fix yet | — |
| Ubuntu Pro 20.04 LTS | freerdp2 | No fix yet | — |
| Ubuntu Pro 18.04 LTS | freerdp2 | No fix yet | — |
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 | 3.26.0-1.1 | openSUSE-SU-2026:10832-1 |
| 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.amzn2023.0.11 | ALAS2023-2026-1643 |
Advisories 7
- USN-8561-1 freerdp3 vulnerabilities Ubuntu Security Notices (USN) · Oct 1, 2026
- SUSE-SU-2026:3562-1 Security update for freerdp SUSE / openSUSE Security Updates · Aug 12, 2026
- WID-SEC-2026-1250 FreeRDP: Schwachstelle ermöglicht nicht spezifizierten Angriff BSI CERT-Bund (WID) · Aug 11, 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
- openSUSE-SU-2026:10832-1 freerdp-3.26.0-1.1 on GA media SUSE / openSUSE Security Updates · May 22, 2026
- ALAS2023-2026-1643 Moderate: freerdp security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · May 13, 2026