CVE-2021-33625

2022-02-0301:55:10

mitre

www.cve.org

7.9 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

5.1%

JSON

An issue was discovered in Kernel 5.x in Insyde InsydeH2O, affecting HddPassword. Software SMI services that use the Communicate() function of the EFI_SMM_COMMUNICATION_PROTOCOL do not check whether the address of the buffer is valid, which allows use of SMRAM, MMIO, or OS kernel addresses.