CVE-2026-91961
MEDIUM
NVD
CVSS Score
6.5
Severity
MEDIUM
Published
Sep 15, 2026
Vendor
unknown
Description
FreeRDP before 3.31.0 contains a denial-of-service vulnerability in the URBDRC control-transfer request path that fails to validate OutputBufferSize before forwarding to the libusb backend. A malicious RDP server can send a control-transfer request with OutputBufferSize set to 65536, triggering a reachable assertion that terminates the client process.