CVE-2021-46774

MEDIUM

System Management Unit - Memory Corruption

Title source: llm
STIX 2.1

Description

Insufficient DRAM address validation in System Management Unit (SMU) may allow an attacker to read/write from/to an invalid DRAM address, potentially resulting in denial-of-service.

Scores

CVSS v3 6.7
EPSS 0.0003
EPSS Percentile 9.9%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:H/A:L

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

Status published
Products (50)
amd/epyc_7001_firmware < naplespi_1.0.0.k
amd/epyc_7203_firmware < milanpi_1.0.0.b
amd/epyc_7203p_firmware < milanpi_1.0.0.b
amd/epyc_7232p_firmware < romepi_1.0.0.g
amd/epyc_7251_firmware < naplespi_1.0.0.k
amd/epyc_7252_firmware < romepi_1.0.0.g
amd/epyc_7261_firmware < naplespi_1.0.0.k
amd/epyc_7262_firmware < romepi_1.0.0.g
amd/epyc_7272_firmware < romepi_1.0.0.g
amd/epyc_7281_firmware < naplespi_1.0.0.k
... and 40 more
Published Nov 14, 2023
Tracked Since Feb 18, 2026