Description
FreeRDP before 3.32.2 contains a use-after-free in the urbdrc USB redirection channel because FindChannelById returns a channel pointer without a reference and the control-channel close path does not take the device manager's loading_lock. A malicious RDP server can send a control-channel CLOSE_REQUEST while the client announces a USB device, freeing the channel before the announcement thread reads channel->Write and crashing the client.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| FreeRDP | FreeRDP | < 3.32.2 | 3.32.2 |
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 | 3.32.2+dfsg-1 | — |
| Debian 13 | freerdp3 | No fix yet | — |
| Debian 12 | freerdp2 | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | freerdp3 | 3.32.2+dfsg-0ubuntu0.26.10.1 | USN-9007-1 |
| Ubuntu 26.04 LTS | freerdp3 | 3.32.2+dfsg-0ubuntu0.26.04.1 | USN-9007-1 |
| Ubuntu 24.04 LTS | freerdp3 | 3.32.2+dfsg-0ubuntu0.24.04.1 | USN-9007-1 |
| 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 | — |
Advisories 2
- WID-SEC-2026-4039 FreeRDP: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 11, 2026
- USN-9007-1 freerdp3 vulnerabilities Ubuntu Security Notices (USN) · Nov 10, 2026
References
- GitHub Security Advisory (GHSA-w897-ffhv-5j7g) vendor-advisory
- VulnCheck Advisory: FreeRDP before 3.32.2 Use-After-Free via USB Redirection Control Channel third-party-advisory