CVE-2023-20559

Description

Insufficient control flow management in AmdCpmGpioInitSmm may allow a privileged attacker to tamper with the SMM handler potentially leading to escalation of privileges.

References

Link	Tags
https://www.amd.com/en/resources/product-security/bulletin/amd-sb-1027.html	vendor advisory

Frequently Asked Questions

What is the severity of CVE-2023-20559?: CVE-2023-20559 has been scored as a high severity vulnerability.
How to fix CVE-2023-20559?: To fix CVE-2023-20559, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-20559 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2023-20559 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-20559?: CVE-2023-20559 affects AMD Ryzen™ 2000 Series , AMD Ryzen™ 3000 Series, AMD Ryzen™ 4000 Series, AMD Ryzen™ 5000 Series, AMD 2nd Gen AMD Ryzen™ Threadripper™ Processor, AMD 3rd Gen AMD Ryzen™ Threadripper™ Processors, AMD Ryzen™ Threadripper™ PRO Processor.

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Description

Category

CWE-691 – Insufficient Control Flow Management

References

Frequently Asked Questions