Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2021-42554

An issue was discovered in Insyde InsydeH2O with Kernel 5.0 before 05.08.42, Kernel 5.1 before 05.16.42, Kernel 5.2 before 05.26.42, Kernel 5.3 before 05.35.42, Kernel 5.4 before 05.42.51, and Kernel 5.5 before 05.50.51. An SMM memory corruption vulnerability in FvbServicesRuntimeDxe allows a possible attacker to write fixed or predictable data to SMRAM. Exploiting this issue could lead to escalating privileges to SMM.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 21.2%
CVSS Severity
CVSS v3 Score 8.2
CVSS v2 Score 7.2
Products affected by CVE-2021-42554


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