CVE-2023-20584: AMD Epyc 7203 Firmware

Medium severity, CVSS 6.0. EPSS: 0.2% chance of exploitation in the next 30 days.

IOMMU improperly handles certain special address ranges with invalid device table entries (DTEs), which may allow an attacker with privileges and a compromised Hypervisor to induce DTE faults to bypass RMP checks in SEV-SNP, potentially leading to a loss of guest integrity.

Affected products

• AMD Epyc 7203 Firmware: before milanpi_1.0.0.b (fixed in milanpi_1.0.0.b)
• AMD Epyc 7203p Firmware: before milanpi_1.0.0.b (fixed in milanpi_1.0.0.b)
• AMD Epyc 72f3 Firmware: before milanpi_1.0.0.b (fixed in milanpi_1.0.0.b)
• AMD Epyc 7303 Firmware: before milanpi_1.0.0.b (fixed in milanpi_1.0.0.b)
• AMD Epyc 7303p Firmware: before milanpi_1.0.0.b (fixed in milanpi_1.0.0.b)
• AMD Epyc 7313 Firmware: before milanpi_1.0.0.b (fixed in milanpi_1.0.0.b)
• AMD Epyc 7313p Firmware: before milanpi_1.0.0.b (fixed in milanpi_1.0.0.b)
• AMD Epyc 7343 Firmware: before milanpi_1.0.0.b (fixed in milanpi_1.0.0.b)
• AMD Epyc 7373x Firmware: before milanpi_1.0.0.b (fixed in milanpi_1.0.0.b)
• AMD Epyc 73f3 Firmware: before milanpi_1.0.0.b (fixed in milanpi_1.0.0.b)
• AMD Epyc 7413 Firmware: before milanpi_1.0.0.b (fixed in milanpi_1.0.0.b)
• AMD Epyc 7443 Firmware: before milanpi_1.0.0.b (fixed in milanpi_1.0.0.b)
• AMD Epyc 7443p Firmware: before milanpi_1.0.0.b (fixed in milanpi_1.0.0.b)
• AMD Epyc 7453 Firmware: before milanpi_1.0.0.b (fixed in milanpi_1.0.0.b)
• AMD Epyc 7473x Firmware: before milanpi_1.0.0.b (fixed in milanpi_1.0.0.b)
• AMD Epyc 74f3 Firmware: before milanpi_1.0.0.b (fixed in milanpi_1.0.0.b)
• AMD Epyc 7513 Firmware: before milanpi_1.0.0.b (fixed in milanpi_1.0.0.b)
• AMD Epyc 7543 Firmware: before milanpi_1.0.0.b (fixed in milanpi_1.0.0.b)
• AMD Epyc 7543p Firmware: before milanpi_1.0.0.b (fixed in milanpi_1.0.0.b)
• AMD Epyc 7573x Firmware: before milanpi_1.0.0.b (fixed in milanpi_1.0.0.b)
• AMD Epyc 75f3 Firmware: before milanpi_1.0.0.b (fixed in milanpi_1.0.0.b)
• AMD Epyc 7643 Firmware: before milanpi_1.0.0.b (fixed in milanpi_1.0.0.b)
• AMD Epyc 7643p Firmware: before milanpi_1.0.0.b (fixed in milanpi_1.0.0.b)
• AMD Epyc 7663 Firmware: before milanpi_1.0.0.b (fixed in milanpi_1.0.0.b)
• AMD Epyc 7663p Firmware: before milanpi_1.0.0.b (fixed in milanpi_1.0.0.b)
• and 40 more

Published 2024-08-13. Last modified 2026-06-17.