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CVE-2022-27672

Published: Feb 14, 2023Updated: Apr 13, 2026 Sources: CVE List NVD BDUNVD-CWE-noinfo
NVD MITRE
4.7CVSSMEDIUM
EPSS Score
0.3%
Top 79.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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.

CVSS Vector Breakdown

AV:LAC:HPR:LUI:NS:UC:HI:NA:N
Exploitability
AV:LAttack Vector
Local
AC:HAttack Complexity
High
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

NVD-CWE-noinfo

Affected Products

1st Gen AMD EPYC™ ProcessorsAMDHardware Firmware
2nd Gen AMD EPYC™ ProcessorsAMDHardware Firmware
Athlon™ X4 ProcessorAMDHardware Firmware
Ryzen™ Threadripper™ PRO ProcessorAMDHardware Firmware
2nd Gen AMD Ryzen™ Threadripper™ ProcessorsAMDHardware Firmware
amdcommercialUSHardware Firmwareaka advanced micro devices
and 194 more affected products View all →

Exploitability

Official Patch Available
Workaround Available

References

https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1045
amd.com
https://security.gentoo.org/glsa/202402-07
security.gentoo.org
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-27672
cve.mitre.org
and 12 more references View all →

Timeline

Published
Feb 14, 2023
Last Updated
Apr 13, 2026

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