CVE-2021-26398: AMD Epyc 7001 Firmware

High severity, CVSS 7.8. EPSS: 0.2% chance of exploitation in the next 30 days.

Insufficient input validation in SYS_KEY_DERIVE system call in a compromised user application or ABL may allow an attacker to corrupt ASP (AMD Secure Processor) OS memory which may lead to potential arbitrary code execution.

Affected products

• AMD Epyc 7001 Firmware: before naplespi_1.0.0.h (fixed in naplespi_1.0.0.h)
• AMD Epyc 7002 Firmware: before romepi_1.0.0.c (fixed in romepi_1.0.0.c)
• AMD Epyc 7003 Firmware: before milanpi_1.0.0.4 (fixed in milanpi_1.0.0.4)
• AMD Epyc 7232p Firmware: before romepi_1.0.0.c (fixed in romepi_1.0.0.c)
• 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.c (fixed in romepi_1.0.0.c)
• 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.c (fixed in romepi_1.0.0.c)
• AMD Epyc 7272 Firmware: before romepi_1.0.0.c (fixed in romepi_1.0.0.c)
• 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.c (fixed in romepi_1.0.0.c)
• AMD Epyc 72f3 Firmware: before milanpi_1.0.0.4 (fixed in milanpi_1.0.0.4)
• 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.c (fixed in romepi_1.0.0.c)
• AMD Epyc 7302p Firmware: before romepi_1.0.0.c (fixed in romepi_1.0.0.c)
• AMD Epyc 7313 Firmware: before milanpi_1.0.0.4 (fixed in milanpi_1.0.0.4)
• AMD Epyc 7313p Firmware: before milanpi_1.0.0.4 (fixed in milanpi_1.0.0.4)
• AMD Epyc 7343 Firmware: before milanpi_1.0.0.4 (fixed in milanpi_1.0.0.4)
• AMD Epyc 7351 Firmware: before naplespi_1.0.0.h (fixed in naplespi_1.0.0.h)
• AMD Epyc 7352 Firmware: before romepi_1.0.0.c (fixed in romepi_1.0.0.c)
• AMD Epyc 7371 Firmware: before naplespi_1.0.0.h (fixed in naplespi_1.0.0.h)
• AMD Epyc 7373x Firmware: before milanpi_1.0.0.4 (fixed in milanpi_1.0.0.4)
• AMD Epyc 73f3 Firmware: before milanpi_1.0.0.4 (fixed in milanpi_1.0.0.4)
• AMD Epyc 7401 Firmware: before naplespi_1.0.0.h (fixed in naplespi_1.0.0.h)
• AMD Epyc 7401p Firmware: before naplespi_1.0.0.h (fixed in naplespi_1.0.0.h)
• and 39 more

Published 2023-01-11. Last modified 2026-06-17.