CVE-2021-26379

CRITICAL

AMD EPYC Firmware < milanpi_1.0.0.9 - Privilege Escalation via Mailbox Data Input Validation

Title source: llm
STIX 2.1

Description

Insufficient input validation of mailbox data in the SMU may allow an attacker to coerce the SMU to corrupt SMRAM, potentially leading to a loss of integrity and privilege escalation.

References (1)

Core 1
Core References

Scores

CVSS v3 9.8
EPSS 0.0026
EPSS Percentile 49.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact total

Details

Status published
Products (48)
amd/epyc_7232p_firmware < romepi_1.0.0.e
amd/epyc_7252_firmware < romepi_1.0.0.e
amd/epyc_7262_firmware < romepi_1.0.0.e
amd/epyc_7272_firmware < romepi_1.0.0.e
amd/epyc_7282_firmware < romepi_1.0.0.e
amd/epyc_72f3_firmware < milanpi_1.0.0.9
amd/epyc_7302_firmware < romepi_1.0.0.e
amd/epyc_7302p_firmware < romepi_1.0.0.e
amd/epyc_7313_firmware < milanpi_1.0.0.9
amd/epyc_7313p_firmware < milanpi_1.0.0.9
... and 38 more
Published May 09, 2023
Tracked Since Feb 18, 2026