Vulnerabilities > AMD > Epyc 7663 Firmware > Critical

DATE CVE VULNERABILITY TITLE RISK
2023-05-09 CVE-2021-46756 Improper Input Validation vulnerability in AMD products
Insufficient validation of inputs in SVC_MAP_USER_STACK in the ASP (AMD Secure Processor) bootloader may allow an attacker with a malicious Uapp or ABL to send malformed or invalid syscall to the bootloader resulting in a potential denial of service and loss of integrity.
network
low complexity
amd CWE-20
critical
9.1
2023-05-09 CVE-2023-20520 Out-of-bounds Write vulnerability in AMD products
Improper access control settings in ASP Bootloader may allow an attacker to corrupt the return address causing a stack-based buffer overrun potentially leading to arbitrary code execution.
network
low complexity
amd CWE-787
critical
9.8
2023-05-09 CVE-2021-46762 Improper Input Validation vulnerability in AMD products
Insufficient input validation in the SMU may allow an attacker to corrupt SMU SRAM potentially leading to a loss of integrity or denial of service.
network
low complexity
amd CWE-20
critical
9.1
2023-05-09 CVE-2021-26379 Unspecified vulnerability in AMD products
Insufficient input validation of mailbox data in the SMU may allow an attacker to coerce the SMU to corrupt SMRAM, potentially leading to a loss of integrity and privilege escalation.
network
low complexity
amd
critical
9.8