Vulnerability · Published Nov 27, 2020 · Assigned by mitre

CVE-2020-28921

High 8.8

In plain English

A high-severity security flaw in the affected software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 52% of all known vulnerabilities).

Severity (CVSS NVD)8.8High

Exploit odds (30 days)0.7%top 48.4% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
n/a	n/a	n/a

References

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