CVE-2021-26348: AMD Epyc 72f3 Firmware

Medium severity, CVSS 5.5. EPSS: 0.2% chance of exploitation in the next 30 days.

Failure to flush the Translation Lookaside Buffer (TLB) of the I/O memory management unit (IOMMU) may lead an IO device to write to memory it should not be able to access, resulting in a potential loss of integrity.

Affected products

  • AMD Epyc 72f3 Firmware: before milanpi-sp3_1.0.0.7 (fixed in milanpi-sp3_1.0.0.7)
  • AMD Epyc 7313 Firmware: before milanpi-sp3_1.0.0.7 (fixed in milanpi-sp3_1.0.0.7)
  • AMD Epyc 7313p Firmware: before milanpi-sp3_1.0.0.7 (fixed in milanpi-sp3_1.0.0.7)
  • AMD Epyc 7343 Firmware: before milanpi-sp3_1.0.0.7 (fixed in milanpi-sp3_1.0.0.7)
  • AMD Epyc 7373x Firmware: before milanpi-sp3_1.0.0.7 (fixed in milanpi-sp3_1.0.0.7)
  • AMD Epyc 73f3 Firmware: before milanpi-sp3_1.0.0.7 (fixed in milanpi-sp3_1.0.0.7)
  • AMD Epyc 7413 Firmware: before milanpi-sp3_1.0.0.7 (fixed in milanpi-sp3_1.0.0.7)
  • AMD Epyc 7443 Firmware: before milanpi-sp3_1.0.0.7 (fixed in milanpi-sp3_1.0.0.7)
  • AMD Epyc 7443p Firmware: before milanpi-sp3_1.0.0.7 (fixed in milanpi-sp3_1.0.0.7)
  • AMD Epyc 7453 Firmware: before milanpi-sp3_1.0.0.7 (fixed in milanpi-sp3_1.0.0.7)
  • AMD Epyc 7473x Firmware: before milanpi-sp3_1.0.0.7 (fixed in milanpi-sp3_1.0.0.7)
  • AMD Epyc 74f3 Firmware: before milanpi-sp3_1.0.0.7 (fixed in milanpi-sp3_1.0.0.7)
  • AMD Epyc 7513 Firmware: before milanpi-sp3_1.0.0.7 (fixed in milanpi-sp3_1.0.0.7)
  • AMD Epyc 7543 Firmware: before milanpi-sp3_1.0.0.7 (fixed in milanpi-sp3_1.0.0.7)
  • AMD Epyc 7543p Firmware: before milanpi-sp3_1.0.0.7 (fixed in milanpi-sp3_1.0.0.7)
  • AMD Epyc 7573x Firmware: before milanpi-sp3_1.0.0.7 (fixed in milanpi-sp3_1.0.0.7)
  • AMD Epyc 75f3 Firmware: before milanpi-sp3_1.0.0.7 (fixed in milanpi-sp3_1.0.0.7)
  • AMD Epyc 7643 Firmware: before milanpi-sp3_1.0.0.7 (fixed in milanpi-sp3_1.0.0.7)
  • AMD Epyc 7663 Firmware: before milanpi-sp3_1.0.0.7 (fixed in milanpi-sp3_1.0.0.7)
  • AMD Epyc 7713 Firmware: before milanpi-sp3_1.0.0.7 (fixed in milanpi-sp3_1.0.0.7)
  • AMD Epyc 7713p Firmware: before milanpi-sp3_1.0.0.7 (fixed in milanpi-sp3_1.0.0.7)
  • AMD Epyc 7763 Firmware: before milanpi-sp3_1.0.0.7 (fixed in milanpi-sp3_1.0.0.7)
  • AMD Epyc 7773x Firmware: before milanpi-sp3_1.0.0.7 (fixed in milanpi-sp3_1.0.0.7)

Published 2022-05-11. Last modified 2026-06-17.