Threats tagged 'ghsa-g884-34r9-cwxq'

This vulnerability involves the Software SMI handler (SwSmiInputValue 0xB2) where a local attacker can manipulate the RBX register, which is used as an unchecked pointer in the CommandRcx0 function. If the RBX contents match specific values, the function can perform arbitrary writes to System Management RAM (SMRAM). This can lead to privilege escalation to System Management Mode (SMM) and persistent firmware compromise.