EDK2 contains a vulnerability in BIOS where an attacker may cause “ Improper Input Validation” by local access. Successful exploitation of this vulnerability could alter control flow in unexpected ways, potentially allowing arbitrary command execution and impacting Confidentiality, Integrity, and Availability.
Exploitability
AV:NAC:LAT:NPR:HUI:NVulnerable System
VC:LVI:HVA:LSubsequent System
SC:LSI:HSA:L8.4/CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:H/VA:L/SC:L/SI:H/SA:LInput Validation