CyberRota Analysis
This is a high severity vulnerability with a CVSS score of 8.2. See the original NVD description below for full technical details.
CVE
CVE-2021-45970
Severity
HIGH
CVSS
8.2
EPSS
0.33%
Original NVD Description
An issue was discovered in IdeBusDxe in Insyde InsydeH2O with kernel 5.1 before 05.16.25, 5.2 before 05.26.25, 5.3 before 05.35.25, 5.4 before 05.43.25, and 5.5 before 05.51.25. A vulnerability exists in the SMM (System Management Mode) branch that registers a SWSMI handler that does not sufficiently check or validate the allocated buffer pointer (the status code saved at the CommBuffer+4 location).
Related CVEs
Other vulnerabilities affecting the same vendor(s)