High severity8.8NVD Advisory· Published Nov 27, 2020· Updated Jun 17, 2026
CVE-2020-28921
CVE-2020-28921
Description
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.
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Affected products
2- Devid Espenschied/PC Analyserdescription
- Range: <=4.10
Patches
Vulnerability mechanics
References
2- github.com/eset/vulnerability-disclosures/blob/master/CVE-2020-28921/CVE-2020-28921.mdnvdExploitThird Party Advisory
- www.pcanalyser.de/index.php/historie/nvdRelease NotesVendor Advisory
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