CVE-2023-20531

HIGH

AMD EPYC Firmware - Denial of Service via SMU SRAM Address Space Manipulation

Title source: llm

Description

Insufficient bound checks in the SMU may allow an attacker to update the SRAM from/to address space to an invalid value potentially resulting in a denial of service.

References (1)

Core 1

Core References

Vendor Advisory vendor-advisory

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

Scores

CVSS v3 7.5

EPSS 0.0039

EPSS Percentile 60.1%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-119

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