CVE-2020-28921: Pcanalyser Pc Analyser

High severity, CVSS 8.8. EPSS: 0.7% chance of exploitation in the next 30 days.

An issue was discovered in Devid Espenschied PC Analyser through 4.10. The PCADRVX64.SYS kernel driver exposes IOCTL functionality that allows low-privilege users to read and write to arbitrary Model Specific Registers (MSRs). This could lead to arbitrary Ring-0 code execution and escalation of privileges.

Affected products

• Pcanalyser Pc Analyser: up to and including 4.10

Published 2020-11-27. Last modified 2026-06-17.