The vulnerability in the implementation of the SNP_INIT command during the loading of microprogramming software for AMD processors allows a attacker to influence the integrity of the protected information.

The vulnerability of the SNPINIT implementation in the loading of microprogramming software for AMD processors is related to insufficient validation of input data. Exploiting this vulnerability can allow an attacker to influence the integrity of the protected information...

CVE-2021-26328

Failure to verify the mode of CPU execution at the time of SNPINIT may lead to a potential loss of memory integrity for SNP guests...