CVE-2022-27672

Description

When SMT is enabled, certain AMD processors may speculatively execute instructions using a target from the sibling thread after an SMT mode switch potentially resulting in information disclosure.

4.7
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.11%
Vendor Advisory amd.com
Affected: AMD 1st Gen AMD EPYC™ Processors
Affected: AMD 2nd Gen AMD EPYC™ Processors
Affected: AMD Athlon™ X4 Processor
Affected: AMD Ryzen™ Threadripper™ PRO Processor
Affected: AMD 2nd Gen AMD Ryzen™ Threadripper™ Processors
Affected: AMD 3rd Gen AMD Ryzen™ Threadripper™ Processors
Affected: AMD 7th Generation AMD A-Series APUs
Affected: AMD Ryzen™ 2000 Series Processors
Affected: AMD Ryzen™ 3000 Series Processors
Affected: AMD Ryzen™ 4000 Series Processors
Affected: AMD Ryzen™ 5000 Series Processors
Affected: AMD Athlon™ Mobile Processors
Published at:
Updated at:

References

Link Tags
https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1045 mitigation vendor advisory
https://security.gentoo.org/glsa/202402-07
http://xenbits.xen.org/xsa/advisory-426.html

Frequently Asked Questions

What is the severity of CVE-2022-27672?
CVE-2022-27672 has been scored as a medium severity vulnerability.
How to fix CVE-2022-27672?
To fix CVE-2022-27672, 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-2022-27672 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-27672 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-2022-27672?
CVE-2022-27672 affects AMD 1st Gen AMD EPYC™ Processors, AMD 2nd Gen AMD EPYC™ Processors, AMD Athlon™ X4 Processor, AMD Ryzen™ Threadripper™ PRO Processor, AMD 2nd Gen AMD Ryzen™ Threadripper™ Processors, AMD 3rd Gen AMD Ryzen™ Threadripper™ Processors, AMD 7th Generation AMD A-Series APUs, AMD Ryzen™ 2000 Series Processors, AMD Ryzen™ 3000 Series Processors, AMD Ryzen™ 4000 Series Processors, AMD Ryzen™ 5000 Series Processors, AMD Athlon™ Mobile Processors.
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.