7.2
CVSSv2

CVE-2021-42554

Published: 03/02/2022 Updated: 08/03/2022
CVSS v2 Base Score: 7.2 | Impact Score: 10 | Exploitability Score: 3.9
CVSS v3 Base Score: 8.2 | Impact Score: 6 | Exploitability Score: 1.5
VMScore: 641
Vector: AV:L/AC:L/Au:N/C:C/I:C/A:C

Vulnerability Summary

An issue exists in Insyde InsydeH2O with Kernel 5.0 prior to 05.08.42, Kernel 5.1 prior to 05.16.42, Kernel 5.2 prior to 05.26.42, Kernel 5.3 prior to 05.35.42, Kernel 5.4 prior to 05.42.51, and Kernel 5.5 prior to 05.50.51. An SMM memory corruption vulnerability in FvbServicesRuntimeDxe allows a possible malicious user to write fixed or predictable data to SMRAM. Exploiting this issue could lead to escalating privileges to SMM.

Vulnerability Trend

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insyde insydeh2o

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