CVE-2022-27672

moderate-risk
Published 2023-03-01

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.

Do I need to act?

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0.12% chance of exploitation
EPSS score — low exploit probability
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
4
CVSS 4.7/10 Medium
LOCAL / HIGH complexity

Affected Products (20)

Athlon X4 750 Firmware
Athlon X4 760K Firmware
Athlon X4 830 Firmware
Athlon X4 840 Firmware
Athlon X4 860K Firmware
Athlon X4 870K Firmware
Athlon X4 880K Firmware
Athlon X4 835 Firmware
Athlon X4 845 Firmware
Athlon X4 940 Firmware
Athlon X4 950 Firmware
Athlon X4 970 Firmware
Ryzen Threadripper Pro 5975W Firmware

Affected Vendors

Amd

References (5)

https://security.gentoo.org/glsa/202402-07
Mitigation https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1045
http://xenbits.xen.org/xsa/advisory-426.html
https://security.gentoo.org/glsa/202402-07
Mitigation https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1045
46
/ 100
moderate-risk
Severity 12/34 · Low
Exploitability 1/34 · Minimal
Exposure 33/34 · Critical