CVE-2021-36922: Realtek Rtsupx USB Utility Driver

High severity, CVSS 7.8. EPSS: 0.3% chance of exploitation in the next 30 days.

RtsUpx.sys in Realtek RtsUpx USB Utility Driver for Camera/Hub/Audio through 1.14.0.0 allows local low-privileged users to achieve unauthorized access to USB devices (Escalation of Privileges, Denial of Service, Code Execution, and Information Disclosure) via a crafted Device IO Control packet to a device.

Affected products

• Realtek Rtsupx USB Utility Driver: up to and including 1.14.0.0

Published 2021-11-02. Last modified 2026-06-17.