CVE-2023-20521: AMD 3015ce Firmware

Medium severity, CVSS 5.7. EPSS: 0.3% chance of exploitation in the next 30 days.

TOCTOU in the ASP Bootloader may allow an attacker with physical access to tamper with SPI ROM records after memory content verification, potentially leading to loss of confidentiality or a denial of service.

Affected products

AMD AMD 3015ce Firmware: before pollockpi-ft5_1.0.0.4 (fixed in pollockpi-ft5_1.0.0.4)
AMD AMD 3015e Firmware: before pollockpi-ft5_1.0.0.4 (fixed in pollockpi-ft5_1.0.0.4)
AMD Athlon Gold 3150g Firmware: affected versions not specified
AMD Athlon Gold Pro 3150g Firmware: affected versions not specified
AMD Athlon Gold Pro 3150ge Firmware: affected versions not specified
AMD Athlon Pro 300ge Firmware: affected versions not specified
AMD Epyc 7001 Firmware: before naplespi_1.0.0.h (fixed in naplespi_1.0.0.h)
AMD Epyc 7203 Firmware: before milanpi_1.0.0.7 (fixed in milanpi_1.0.0.7)
AMD Epyc 7203p Firmware: before milanpi_1.0.0.7 (fixed in milanpi_1.0.0.7)
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_1.0.0.7 (fixed in milanpi_1.0.0.7)
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_1.0.0.7 (fixed in milanpi_1.0.0.7)
AMD Epyc 7303p Firmware: before milanpi_1.0.0.7 (fixed in milanpi_1.0.0.7)
AMD Epyc 7313 Firmware: before milanpi_1.0.0.7 (fixed in milanpi_1.0.0.7)
AMD Epyc 7313p Firmware: before milanpi_1.0.0.7 (fixed in milanpi_1.0.0.7)
and 68 more

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