CVE-2023-20526: AMD Epyc 7001 Firmware

Medium severity, CVSS 4.6. EPSS: 0.3% chance of exploitation in the next 30 days.

Insufficient input validation in the ASP Bootloader may enable a privileged attacker with physical access to expose the contents of ASP memory potentially leading to a loss of confidentiality.

Affected products

AMD Epyc 7001 Firmware: before naplespi_1.0.0.h (fixed in naplespi_1.0.0.h)
AMD Epyc 7203 Firmware: before milanpi_1.0.0.5 (fixed in milanpi_1.0.0.5)
AMD Epyc 7203p Firmware: before milanpi_1.0.0.5 (fixed in milanpi_1.0.0.5)
AMD Epyc 7232p Firmware: before romepi_1.0.0.d (fixed in romepi_1.0.0.d)
AMD Epyc 7251 Firmware: before naplespi_1.0.0.h (fixed in naplespi_1.0.0.h)
AMD Epyc 7252 Firmware: before romepi_1.0.0.d (fixed in romepi_1.0.0.d)
AMD Epyc 7261 Firmware: before naplespi_1.0.0.h (fixed in naplespi_1.0.0.h)
AMD Epyc 7262 Firmware: before romepi_1.0.0.d (fixed in romepi_1.0.0.d)
AMD Epyc 7272 Firmware: before romepi_1.0.0.d (fixed in romepi_1.0.0.d)
AMD Epyc 7281 Firmware: before naplespi_1.0.0.h (fixed in naplespi_1.0.0.h)
AMD Epyc 7282 Firmware: before romepi_1.0.0.d (fixed in romepi_1.0.0.d)
AMD Epyc 72f3 Firmware: before milanpi_1.0.0.5 (fixed in milanpi_1.0.0.5)
AMD Epyc 7301 Firmware: before naplespi_1.0.0.h (fixed in naplespi_1.0.0.h)
AMD Epyc 7302 Firmware: before romepi_1.0.0.d (fixed in romepi_1.0.0.d)
AMD Epyc 7302p Firmware: before romepi_1.0.0.d (fixed in romepi_1.0.0.d)
AMD Epyc 7303 Firmware: before milanpi_1.0.0.5 (fixed in milanpi_1.0.0.5)
AMD Epyc 7303p Firmware: before milanpi_1.0.0.5 (fixed in milanpi_1.0.0.5)
AMD Epyc 7313 Firmware: before milanpi_1.0.0.5 (fixed in milanpi_1.0.0.5)
AMD Epyc 7313p Firmware: before milanpi_1.0.0.5 (fixed in milanpi_1.0.0.5)
AMD Epyc 7343 Firmware: before milanpi_1.0.0.5 (fixed in milanpi_1.0.0.5)
AMD Epyc 7351 Firmware: before naplespi_1.0.0.h (fixed in naplespi_1.0.0.h)
AMD Epyc 7351p Firmware: before naplespi_1.0.0.h (fixed in naplespi_1.0.0.h)
AMD Epyc 7352 Firmware: before romepi_1.0.0.d (fixed in romepi_1.0.0.d)
AMD Epyc 7371 Firmware: before naplespi_1.0.0.h (fixed in naplespi_1.0.0.h)
AMD Epyc 7373x Firmware: before milanpi_1.0.0.5 (fixed in milanpi_1.0.0.5)
and 48 more

Published 2023-11-14. Last modified 2026-06-17.