Freerdp · Freerdp · CVE-2026-91951
**Name of the Vulnerable Software and Affected Versions**
FreeRDP versions prior to 3.31.0
**Description**
An out-of-bounds write occurs in the `urbdrc` client channel's `urb send current frame number result()` function. A malicious RDP server can send a crafted 28-byte USB redirection message to trigger a 4-byte write past the allocated 16-byte buffer, resulting in a denial of service when verbose asserts are enabled.
**Recommendations**
Update to version 3.31.0 or later.