CVE-2022-39318 MEDIUM

CVE-2022-39318: Division by zero in urbdrc channel in FreeRDP

Vendor Freerdp
Product FreeRDP
Weakness CWE-20 · Input validation
Published November 16, 2022
Last update November 3, 2025
View on NVD All CVEs

CVSS base score

4.8/10
Attack vector Network
Attack complexity High
Privileges required Low
User interaction Required
Confidentiality None
Integrity None

CVSS vector

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

What the vulnerability does

01Description

FreeRDP is a free remote desktop protocol library and clients. Affected versions of FreeRDP are missing input validation in `urbdrc` channel. A malicious server can trick a FreeRDP based client to crash with division by zero. This issue has been addressed in version 2.9.0. All users are advised to upgrade. Users unable to upgrade should not use the `/usb` redirection switch.

Key dates

02Disclosure timeline

November 16, 2022 CVE published
November 3, 2025 Record updated