CVE-2023-31315

Description

Improper validation in a model specific register (MSR) could allow a malicious program with ring0 access to modify SMM configuration while SMI lock is enabled, potentially leading to arbitrary code execution.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.26%
Vendor Advisory amd.com
Affected: AMD 3rd Gen AMD EPYC™ Processors
Affected: AMD 1st Gen AMD EPYC™ Processors
Affected: AMD 2nd Gen AMD EPYC™ Processors
Affected: AMD 4th Gen AMD EPYC™ Processors
Affected: AMD AMD EPYC™ Embedded 3000
Affected: AMD AMD EPYC™ Embedded 7002
Affected: AMD AMD EPYC™ Embedded 7003
Affected: AMD AMD EPYC™ Embedded 9003
Affected: AMD AMD Ryzen™ Embedded R1000
Affected: AMD AMD Ryzen™ Embedded R2000
Affected: AMD AMD Ryzen™ Embedded 5000
Affected: AMD AMD Ryzen™ Embedded 7000
Affected: AMD AMD Ryzen™ Embedded V1000
Affected: AMD AMD Ryzen™ Embedded V2000
Affected: AMD AMD Ryzen™ Embedded V3000
Affected: AMD AMD Ryzen™ 3000 Series Desktop Processors
Affected: AMD AMD Ryzen™ 5000 Series Desktop Processors
Affected: AMD AMD Ryzen™ 5000 Series Desktop processor with Radeon™ Graphics
Affected: AMD AMD Ryzen™ 7000 Series Desktop Processors
Affected: AMD AMD Ryzen™ 4000 Series Desktop Processors with Radeon™ Graphics
Affected: AMD AMD Ryzen™ Threadripper™ 3000 Series Processors
Affected: AMD AMD Ryzen™ Threadripper™ PRO Processors
Affected: AMD AMD Ryzen™ Threadripper™ PRO 3000WX Series Processors
Affected: AMD AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics
Affected: AMD AMD Ryzen™ 3000 Series Mobile Processor with Radeon™ Graphics
Affected: AMD AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics
Affected: AMD AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics
Affected: AMD AMD Ryzen™ 7030 Series Mobile Processors with Radeon™ Graphics
Affected: AMD AMD Ryzen™ 7040 Series Mobile Processors with Radeon™ Graphics
Affected: AMD AMD Ryzen™ 7045 Series Mobile Processors
Affected: AMD AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics
Affected: AMD AMD Ryzen™ 7020 Series Processors with Radeon™ Graphics
Affected: AMD AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics
Affected: AMD AMD Ryzen™ 8000 Series Processors with Radeon™ Graphics
Published at:
Updated at:

References

Link Tags
https://www.amd.com/en/resources/product-security/bulletin/amd-sb-7014.html vendor advisory
https://media.defcon.org/DEF%20CON%2032/DEF%20CON%2032%20presentations/DEF%20CON%2032%20-%20Enrique%20Nissim%20Krzysztof%20Okupski%20-%20AMD%20Sinkclose%20Universal%20Ring-2%20Privilege%20Escalation.pdf
https://news.ycombinator.com/item?id=41475975
https://www.darkreading.com/remote-workforce/amd-issues-updates-for-silicon-level-sinkclose-flaw

Frequently Asked Questions

What is the severity of CVE-2023-31315?
CVE-2023-31315 has been scored as a high severity vulnerability.
How to fix CVE-2023-31315?
To fix CVE-2023-31315, 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-2023-31315 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2023-31315 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-2023-31315?
CVE-2023-31315 affects AMD 3rd Gen AMD EPYC™ Processors, AMD 1st Gen AMD EPYC™ Processors, AMD 2nd Gen AMD EPYC™ Processors, AMD 4th Gen AMD EPYC™ Processors, AMD AMD EPYC™ Embedded 3000, AMD AMD EPYC™ Embedded 7002, AMD AMD EPYC™ Embedded 7003, AMD AMD EPYC™ Embedded 9003, AMD AMD Ryzen™ Embedded R1000, AMD AMD Ryzen™ Embedded R2000, AMD AMD Ryzen™ Embedded 5000, AMD AMD Ryzen™ Embedded 7000, AMD AMD Ryzen™ Embedded V1000, AMD AMD Ryzen™ Embedded V2000, AMD AMD Ryzen™ Embedded V3000, AMD AMD Ryzen™ 3000 Series Desktop Processors, AMD AMD Ryzen™ 5000 Series Desktop Processors, AMD AMD Ryzen™ 5000 Series Desktop processor with Radeon™ Graphics, AMD AMD Ryzen™ 7000 Series Desktop Processors, AMD AMD Ryzen™ 4000 Series Desktop Processors with Radeon™ Graphics, AMD AMD Ryzen™ Threadripper™ 3000 Series Processors, AMD AMD Ryzen™ Threadripper™ PRO Processors, AMD AMD Ryzen™ Threadripper™ PRO 3000WX Series Processors, AMD AMD Athlon™ 3000 Series Mobile Processors with Radeon™ Graphics, AMD AMD Ryzen™ 3000 Series Mobile Processor with Radeon™ Graphics, AMD AMD Ryzen™ 4000 Series Mobile Processors with Radeon™ Graphics, AMD AMD Ryzen™ 5000 Series Mobile Processors with Radeon™ Graphics, AMD AMD Ryzen™ 7030 Series Mobile Processors with Radeon™ Graphics, AMD AMD Ryzen™ 7040 Series Mobile Processors with Radeon™ Graphics, AMD AMD Ryzen™ 7045 Series Mobile Processors, AMD AMD Ryzen™ 6000 Series Processors with Radeon™ Graphics, AMD AMD Ryzen™ 7020 Series Processors with Radeon™ Graphics, AMD AMD Ryzen™ 7035 Series Processors with Radeon™ Graphics, AMD AMD Ryzen™ 8000 Series Processors with Radeon™ Graphics.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.