CVE-2021-26397: AMD Epyc 72f3 Firmware

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

Insufficient address validation, may allow an attacker with a compromised ABL and UApp to corrupt sensitive memory locations potentially resulting in a loss of integrity or availability.

Affected products

• AMD Epyc 72f3 Firmware: before milanpi_1.0.0.9 (fixed in milanpi_1.0.0.9)
• AMD Epyc 7313 Firmware: before milanpi_1.0.0.9 (fixed in milanpi_1.0.0.9)
• AMD Epyc 7313p Firmware: before milanpi_1.0.0.9 (fixed in milanpi_1.0.0.9)
• AMD Epyc 7343 Firmware: before milanpi_1.0.0.9 (fixed in milanpi_1.0.0.9)
• AMD Epyc 7373x Firmware: before milanpi_1.0.0.9 (fixed in milanpi_1.0.0.9)
• AMD Epyc 73f3 Firmware: before milanpi_1.0.0.9 (fixed in milanpi_1.0.0.9)
• AMD Epyc 7413 Firmware: before milanpi_1.0.0.9 (fixed in milanpi_1.0.0.9)
• AMD Epyc 7443 Firmware: before milanpi_1.0.0.9 (fixed in milanpi_1.0.0.9)
• AMD Epyc 7443p Firmware: before milanpi_1.0.0.9 (fixed in milanpi_1.0.0.9)
• AMD Epyc 7453 Firmware: before milanpi_1.0.0.9 (fixed in milanpi_1.0.0.9)
• AMD Epyc 7473x Firmware: before milanpi_1.0.0.9 (fixed in milanpi_1.0.0.9)
• AMD Epyc 74f3 Firmware: before milanpi_1.0.0.9 (fixed in milanpi_1.0.0.9)
• AMD Epyc 7513 Firmware: before milanpi_1.0.0.9 (fixed in milanpi_1.0.0.9)
• AMD Epyc 7543 Firmware: before milanpi_1.0.0.9 (fixed in milanpi_1.0.0.9)
• AMD Epyc 7543p Firmware: before milanpi_1.0.0.9 (fixed in milanpi_1.0.0.9)
• AMD Epyc 7573x Firmware: before milanpi_1.0.0.9 (fixed in milanpi_1.0.0.9)
• AMD Epyc 75f3 Firmware: before milanpi_1.0.0.9 (fixed in milanpi_1.0.0.9)
• AMD Epyc 7643 Firmware: before milanpi_1.0.0.9 (fixed in milanpi_1.0.0.9)
• AMD Epyc 7663 Firmware: before milanpi_1.0.0.9 (fixed in milanpi_1.0.0.9)
• AMD Epyc 7713 Firmware: before milanpi_1.0.0.9 (fixed in milanpi_1.0.0.9)
• AMD Epyc 7713p Firmware: before milanpi_1.0.0.9 (fixed in milanpi_1.0.0.9)
• AMD Epyc 7763 Firmware: before milanpi_1.0.0.9 (fixed in milanpi_1.0.0.9)
• AMD Epyc 7773x Firmware: before milanpi_1.0.0.9 (fixed in milanpi_1.0.0.9)

Published 2023-05-09. Last modified 2026-06-17.