CVE-2026-121408

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.

• CWE-362

• https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-w897-ffhv-5j7gVendor Advisory
• https://www.vulncheck.com/advisories/freerdp-before-3.32.2-use-after-free-via-usb-redirection-control-channelThird Party Advisory

Published

Nov 3, 2026

Last Modified

Nov 3, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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