Description
FreeRDP before 3.32.1 on Windows contains a heap out-of-bounds read in client_cli_present_gateway_message that passes a byte count as wide-character printf precision. A malicious RD Gateway can send pre-authentication consent or service messages, causing the client to read twice the buffer size, leaking heap memory or crashing.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| FreeRDP | FreeRDP | < 3.32.1 | 3.32.1 |
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 | 3.32.1+dfsg-1 | — |
| Debian 13 | freerdp3 | No fix yet | — |
| Debian 12 | freerdp2 | No fix yet | — |
Advisories 1
- WID-SEC-2026-3603 FreeRDP: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 11, 2026
References
- GitHub Security Advisory (GHSA-c49c-xm94-5qf3) vendor-advisory
- VulnCheck Advisory: FreeRDP before 3.32.1 Heap Out-of-Bounds Read via RD Gateway Consent Message third-party-advisory