CVE-2021-36924: Realtek Rtsupx USB Utility Driver

High severity, CVSS 7.8. EPSS: 0.2% 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 a pool overflow (leading to Escalation of Privileges, Denial of Service, and Code Execution) 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.