Insufficient Control Flow Management in AMD Product
CVE-2023-20559

8.8HIGH

Key Information:

Vendor

Amd
Status
Ryzen™ 2000 Series
Ryzen™ 3000 Series
Ryzen™ 4000 Series
Ryzen™ 5000 Series
Vendor
CVE Published:
2 April 2023

What is CVE-2023-20559?

A vulnerability in the AmdCpmGpioInitSmm component allows a privileged attacker to manipulate the System Management Mode (SMM) handler. This could potentially lead to unauthorized privilege escalation, exposing the system to further attacks and compromises.

Affected Version(s)

Ryzen™ Threadripper™ PRO Processor x86 various

2nd Gen AMD Ryzen™ Threadripper™ Processor x86 Various

3rd Gen AMD Ryzen™ Threadripper™ Processors x86 various

References

https://www.amd.com/en/resources/product-security/bulleti...
vendor-advisory

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.