CVE-2021-26334: The AMDPowerProfiler.sys driver of AMD μProf tool may allow lower privileged users to access MSRs in kernel which may lead to privilege escalation and ring-0…

PriorityP355critical9.9CVSS 3.1

AVNACLPRLUINSCCHIHAH

EPSS

1.17%

63.8th percentile

The AMDPowerProfiler.sys driver of AMD μProf tool may allow lower privileged users to access MSRs in kernel which may lead to privilege escalation and ring-0 code execution by the lower privileged user.

Affected

3 ranges

Vendor	Product	Version range	Fixed in
amd	amd_uprof	< 3.4.494	3.4.494
amd	amd_uprof	< 3.4.502	3.4.502
amd	prof_tool	>= μProf Tool < 3.4.494	3.4.494

CVSS provenance

nvdv3.19.9CRITICALCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

nvdv2.09.0CRITICALAV:N/AC:L/Au:S/C:C/I:C/A:C

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