CVE-2020-28921

8.8 highEPSS 0.7%

High (8.8) in pcanalyser pc analyser. 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.

Severity

CVSS 3.1

8.8 high

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

EPSS: 0.7% chance of exploitation in the next 30 days; higher than 51% of CVEs (scores of 2026-10-31)
Published: 2020-11-27
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

pcanalyser:pc_analyser

References

http://www.pcanalyser.de/index.php/historie/
https://github.com/eset/vulnerability-disclosures
https://github.com/eset/vulnerability-disclosures/blob/master/CVE-2020-28921/CVE-2020-28921.md
http://www.pcanalyser.de/index.php/historie/
https://github.com/eset/vulnerability-disclosures

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