Log in Start free

Vulnerability · Published Nov 3, 2026 · Assigned by VulnCheck

CVE-2026-121408FreeRDP before 3.32.2 Use-After-Free via USB Redirection Control Channel

Medium 5.3

In plain English

A medium-severity race condition in FreeRDP from FreeRDP. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 13% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)0.2%top 87.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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 packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12freerdp2no fix listedDEBIAN-CVE-2026-121408
Debian:13freerdp3no fix listedDEBIAN-CVE-2026-121408
Debian:14freerdp33.32.2+dfsg-1DEBIAN-CVE-2026-121408
Ubuntu:22.04:LTSfreerdp2no fix listedUBUNTU-CVE-2026-121408
Ubuntu:24.04:LTSfreerdp3no fix listedUBUNTU-CVE-2026-121408
Ubuntu:26.04:LTSfreerdp3no fix listedUBUNTU-CVE-2026-121408
Ubuntu:26.10freerdp3no fix listedUBUNTU-CVE-2026-121408

Affected products (as reported)

VendorProductVersions
FreeRDP FreeRDP 0 – before 3.32.2

Weakness: CWE-362 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H

References