VulnerabilityModified
CVE-2022-27672
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.
MEDIUM 4.7EPSS 0.29%
Does this matter?
Lower severity and a low EPSS score (0.29%). Track it; it rarely justifies an emergency change on its own.
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 3.1
- 4.7 MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 0.29% probability · 21th percentile
- CISA KEV
- Not listed
- Affected
- amd/athlon x4 750 firmware · amd/athlon x4 760k firmware · amd/athlon x4 830 firmware · amd/athlon x4 840 firmware · amd/athlon x4 860k firmware · amd/athlon x4 870k firmware · amd/athlon x4 880k firmware · amd/athlon x4 835 firmware · amd/athlon x4 845 firmware · amd/athlon x4 940 firmware · amd/athlon x4 950 firmware · amd/athlon x4 970 firmware · amd/ryzen threadripper pro 5995wx firmware · amd/ryzen threadripper pro 5975w firmware · amd/ryzen threadripper pro 5965wx firmware · amd/ryzen threadripper pro 5955wx firmware · amd/ryzen threadripper pro 5945wx firmware · amd/ryzen threadripper 2990wx firmware · amd/ryzen threadripper 2970wx firmware · amd/ryzen threadripper 2950x firmware · +40 more
- Source
- psirt@amd.com
References
- https://security.gentoo.org/glsa/202402-07
- https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1045Mitigation, Vendor Advisory
- http://xenbits.xen.org/xsa/advisory-426.html
- https://security.gentoo.org/glsa/202402-07
- https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1045Mitigation, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.