CVE-2023-20596

Description

Improper input validation in the SMM Supervisor may allow an attacker with a compromised SMI handler to gain Ring0 access potentially leading to arbitrary code execution.

9.8
CVSS
Severity: Critical
CVSS 3.1 •
EPSS 0.53%
Vendor Advisory amd.com
Affected: AMD Ryzen™ 5000 Series Desktop Processor with Radeon™ Graphics Formerly codenamed “Cezanne” AM4
Affected: AMD Ryzen™ 7000 Series Desktop Processors with Radeon™ Graphics Formerly codenamed “Raphael”
Affected: AMD Ryzen™ 7000 Series Desktop Processors with Radeon™ Graphics Formerly codenamed “Raphael” X3D
Affected: AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics “Cezanne”
Affected: AMD AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics "Rembrandt"
Affected: AMD AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics “Rembrandt-R”
Affected: AMD Ryzen™ 7040 Series Mobile Processors with Radeon™ Graphics Formerly codenamed “Phoenix”
Published at:
Updated at:

References

Link Tags
https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-7011 vendor advisory

Frequently Asked Questions

What is the severity of CVE-2023-20596?
CVE-2023-20596 has been scored as a critical severity vulnerability.
How to fix CVE-2023-20596?
To fix CVE-2023-20596, 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-2023-20596 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-20596 is being actively exploited. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-20596?
CVE-2023-20596 affects AMD Ryzen™ 5000 Series Desktop Processor with Radeon™ Graphics Formerly codenamed “Cezanne” AM4, AMD Ryzen™ 7000 Series Desktop Processors with Radeon™ Graphics Formerly codenamed “Raphael”, AMD Ryzen™ 7000 Series Desktop Processors with Radeon™ Graphics Formerly codenamed “Raphael” X3D, AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics “Cezanne”, AMD AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics "Rembrandt", AMD AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics “Rembrandt-R”, AMD Ryzen™ 7040 Series Mobile Processors with Radeon™ Graphics Formerly codenamed “Phoenix”.
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