CVE-2023-20523

MEDIUM

AMD EPYC 7002 Series Firmware - Time-of-check Time-of-use Race Condition in ASP

Title source: llm

TOCTOU in the ASP may allow a physical attacker to write beyond the buffer bounds, potentially leading to a loss of integrity or denial of service.

Core 1

Core References

Vendor Advisory vendor-advisory

CVSS v3 5.7

EPSS 0.0008

EPSS Percentile 24.0%

Attack Vector PHYSICAL

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

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

CWE

CWE-367

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