CVE-2023-20528

LOW

AMD EPYC 7002 Series Firmware - Unauthenticated Memory Exfiltration via I2C Bus

Title source: llm
STIX 2.1

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.

References (1)

Core 1
Core References

Scores

CVSS v3 2.4
EPSS 0.0008
EPSS Percentile 22.5%
Attack Vector PHYSICAL
CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-20
Status published
Products (50)
amd/epyc_7002_firmware < romepi_1.0.0.c
amd/epyc_7003_firmware < milanpi_1.0.0.5
amd/epyc_7232p_firmware < romepi_1.0.0.c
amd/epyc_7252_firmware < romepi_1.0.0.c
amd/epyc_7262_firmware < romepi_1.0.0.c
amd/epyc_7272_firmware < romepi_1.0.0.c
amd/epyc_7282_firmware < romepi_1.0.0.c
amd/epyc_72f3_firmware < milanpi_1.0.0.5
amd/epyc_7302_firmware < romepi_1.0.0.c
amd/epyc_7302p_firmware < romepi_1.0.0.c
... and 40 more
Published Jan 11, 2023
Tracked Since Feb 18, 2026