CVE-2021-26370: AMD Epyc 7002 Firmware

High severity, CVSS 7.1. EPSS: 0.2% chance of exploitation in the next 30 days.

Improper validation of destination address in SVC_LOAD_FW_IMAGE_BY_INSTANCE and SVC_LOAD_BINARY_BY_ATTRIB in a malicious UApp or ABL may allow an attacker to overwrite arbitrary bootloader memory with SPI ROM contents resulting in a loss of integrity and availability.

Affected products

• AMD Epyc 7002 Firmware: before romepi-sp3_1.0.0.c (fixed in romepi-sp3_1.0.0.c)
• AMD Epyc 7232p Firmware: before romepi-sp3_1.0.0.c (fixed in romepi-sp3_1.0.0.c)
• AMD Epyc 7252 Firmware: before romepi-sp3_1.0.0.c (fixed in romepi-sp3_1.0.0.c)
• AMD Epyc 7262 Firmware: before romepi-sp3_1.0.0.c (fixed in romepi-sp3_1.0.0.c)
• AMD Epyc 7272 Firmware: before romepi-sp3_1.0.0.c (fixed in romepi-sp3_1.0.0.c)
• AMD Epyc 7282 Firmware: before romepi-sp3_1.0.0.c (fixed in romepi-sp3_1.0.0.c)
• AMD Epyc 72f3 Firmware: before milanpi-sp3_1.0.0.4 (fixed in milanpi-sp3_1.0.0.4)
• AMD Epyc 7302 Firmware: before romepi-sp3_1.0.0.c (fixed in romepi-sp3_1.0.0.c)
• AMD Epyc 7302p Firmware: before romepi-sp3_1.0.0.c (fixed in romepi-sp3_1.0.0.c)
• AMD Epyc 7313 Firmware: before milanpi-sp3_1.0.0.4 (fixed in milanpi-sp3_1.0.0.4)
• AMD Epyc 7313p Firmware: before milanpi-sp3_1.0.0.4 (fixed in milanpi-sp3_1.0.0.4)
• AMD Epyc 7343 Firmware: before milanpi-sp3_1.0.0.4 (fixed in milanpi-sp3_1.0.0.4)
• AMD Epyc 7352 Firmware: before romepi-sp3_1.0.0.c (fixed in romepi-sp3_1.0.0.c)
• AMD Epyc 7373x Firmware: before milanpi-sp3_1.0.0.4 (fixed in milanpi-sp3_1.0.0.4)
• AMD Epyc 73f3 Firmware: before milanpi-sp3_1.0.0.4 (fixed in milanpi-sp3_1.0.0.4)
• AMD Epyc 7402 Firmware: before romepi-sp3_1.0.0.c (fixed in romepi-sp3_1.0.0.c)
• AMD Epyc 7402p Firmware: before romepi-sp3_1.0.0.c (fixed in romepi-sp3_1.0.0.c)
• AMD Epyc 7413 Firmware: before milanpi-sp3_1.0.0.4 (fixed in milanpi-sp3_1.0.0.4)
• AMD Epyc 7443 Firmware: before milanpi-sp3_1.0.0.4 (fixed in milanpi-sp3_1.0.0.4)
• AMD Epyc 7443p Firmware: before milanpi-sp3_1.0.0.4 (fixed in milanpi-sp3_1.0.0.4)
• AMD Epyc 7452 Firmware: before romepi-sp3_1.0.0.c (fixed in romepi-sp3_1.0.0.c)
• AMD Epyc 7453 Firmware: before milanpi-sp3_1.0.0.4 (fixed in milanpi-sp3_1.0.0.4)
• AMD Epyc 7473x Firmware: before milanpi-sp3_1.0.0.4 (fixed in milanpi-sp3_1.0.0.4)
• AMD Epyc 74f3 Firmware: before milanpi-sp3_1.0.0.4 (fixed in milanpi-sp3_1.0.0.4)
• AMD Epyc 7502 Firmware: before romepi-sp3_1.0.0.c (fixed in romepi-sp3_1.0.0.c)
• and 24 more

Published 2022-05-10. Last modified 2026-06-17.