CVE-2024-21980: AMD Epyc 7203 Firmware

High severity, CVSS 7.9. EPSS: 0.4% chance of exploitation in the next 30 days.

Improper restriction of write operations in SNP firmware could allow a malicious hypervisor to potentially overwrite a guest's memory or UMC seed resulting in loss of confidentiality and integrity.

Affected products

AMD Epyc 7203 Firmware: before milanpi_1.0.0.d (fixed in milanpi_1.0.0.d)
AMD Epyc 7203p Firmware: before milanpi_1.0.0.d (fixed in milanpi_1.0.0.d)
AMD Epyc 72f3 Firmware: before milanpi_1.0.0.d (fixed in milanpi_1.0.0.d)
AMD Epyc 7303 Firmware: before milanpi_1.0.0.d (fixed in milanpi_1.0.0.d)
AMD Epyc 7303p Firmware: before milanpi_1.0.0.d (fixed in milanpi_1.0.0.d)
AMD Epyc 7313 Firmware: before milanpi_1.0.0.d (fixed in milanpi_1.0.0.d)
AMD Epyc 7313p Firmware: before milanpi_1.0.0.d (fixed in milanpi_1.0.0.d)
AMD Epyc 7343 Firmware: before milanpi_1.0.0.d (fixed in milanpi_1.0.0.d)
AMD Epyc 7373x Firmware: before milanpi_1.0.0.d (fixed in milanpi_1.0.0.d)
AMD Epyc 73f3 Firmware: before milanpi_1.0.0.d (fixed in milanpi_1.0.0.d)
AMD Epyc 7413 Firmware: before milanpi_1.0.0.d (fixed in milanpi_1.0.0.d)
AMD Epyc 7443 Firmware: before milanpi_1.0.0.d (fixed in milanpi_1.0.0.d)
AMD Epyc 7443p Firmware: before milanpi_1.0.0.d (fixed in milanpi_1.0.0.d)
AMD Epyc 7453 Firmware: before milanpi_1.0.0.d (fixed in milanpi_1.0.0.d)
AMD Epyc 7473x Firmware: before milanpi_1.0.0.d (fixed in milanpi_1.0.0.d)
AMD Epyc 74f3 Firmware: before milanpi_1.0.0.d (fixed in milanpi_1.0.0.d)
AMD Epyc 7513 Firmware: before milanpi_1.0.0.d (fixed in milanpi_1.0.0.d)
AMD Epyc 7543 Firmware: before milanpi_1.0.0.d (fixed in milanpi_1.0.0.d)
AMD Epyc 7543p Firmware: before milanpi_1.0.0.d (fixed in milanpi_1.0.0.d)
AMD Epyc 7573x Firmware: before milanpi_1.0.0.d (fixed in milanpi_1.0.0.d)
AMD Epyc 75f3 Firmware: before milanpi_1.0.0.d (fixed in milanpi_1.0.0.d)
AMD Epyc 7643 Firmware: before milanpi_1.0.0.d (fixed in milanpi_1.0.0.d)
AMD Epyc 7643p Firmware: before milanpi_1.0.0.d (fixed in milanpi_1.0.0.d)
AMD Epyc 7663 Firmware: before milanpi_1.0.0.d (fixed in milanpi_1.0.0.d)
AMD Epyc 7663p Firmware: before milanpi_1.0.0.d (fixed in milanpi_1.0.0.d)
and 61 more

Published 2024-08-05. Last modified 2026-06-17.