VulnerabilityModified

CVE-2023-20528

Insufficient input validation in the SMU may allow a physical attacker to exfiltrate SMU memory contents over the I2C bus potentially leading to a loss of confidentiality.

LOW 2.4EPSS 0.24%

Does this matter?

Lower severity and a low EPSS score (0.24%). Track it; it rarely justifies an emergency change on its own.

Description

Insufficient input validation in the SMU may allow a physical attacker to exfiltrate SMU memory contents over the I2C bus potentially leading to a loss of confidentiality.

CVSS 3.1: 2.4 LOWCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
EPSS: 0.24% probability · 16th percentile
CISA KEV: Not listed
Weakness: CWE-20
Affected: amd/epyc 7h12 firmware · amd/epyc 7f72 firmware · amd/epyc 7f52 firmware · amd/epyc 7f32 firmware · amd/epyc 7742 firmware · amd/epyc 7702p firmware · amd/epyc 7702 firmware · amd/epyc 7662 firmware · amd/epyc 7642 firmware · amd/epyc 7552 firmware · amd/epyc 7542 firmware · amd/epyc 7532 firmware · amd/epyc 7502p firmware · amd/epyc 7502 firmware · amd/epyc 7452 firmware · amd/epyc 7402 firmware · amd/epyc 7402p firmware · amd/epyc 7352 firmware · amd/epyc 7302p firmware · amd/epyc 7302 firmware · +30 more
Source: psirt@amd.com

References

https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1032Vendor Advisory
https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1032Vendor Advisory

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.