CVE-2026-121408

MEDIUM 5.3

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

CVSS Score

5.3

EPSS Score

0.0%

EPSS Percentile

0th

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	CWE-362
Vendor	freerdp
Product	freerdp
Published	Nov 3, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Affected Versions

FreeRDP / FreeRDP

0 < 3.32.2

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/FreeRDP/FreeRDP/security/advisories/GHSA-w897-ffhv-5j7g vulncheck.com: https://www.vulncheck.com/advisories/freerdp-before-3.32.2-use-after-free-via-usb-redirection-control-channel

Credits

Kushalkhemka mayank-jangid-moon opensec-intelligence