CVE-2021-26339

MEDIUM

AMD EPYC 7003 Series Firmware < milanpi-sp3_1.0.0.7 - Denial of Service via Specific x86 Instruction Sequence

Title source: llm
STIX 2.1

Description

A bug in AMD CPU’s core logic may allow for an attacker, using specific code from an unprivileged VM, to trigger a CPU core hang resulting in a potential denial of service. AMD believes the specific code includes a specific x86 instruction sequence that would not be generated by compilers.

References (2)

Core 2

Scores

CVSS v3 5.5
EPSS 0.0009
EPSS Percentile 25.4%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

Status published
Products (50)
amd/epyc_72f3_firmware < milanpi-sp3_1.0.0.7
amd/epyc_7313_firmware < milanpi-sp3_1.0.0.7
amd/epyc_7313p_firmware < milanpi-sp3_1.0.0.7
amd/epyc_7343_firmware < milanpi-sp3_1.0.0.7
amd/epyc_7373x_firmware < milanpi-sp3_1.0.0.7
amd/epyc_73f3_firmware < milanpi-sp3_1.0.0.7
amd/epyc_7413_firmware < milanpi-sp3_1.0.0.7
amd/epyc_7443_firmware < milanpi-sp3_1.0.0.7
amd/epyc_7443p_firmware < milanpi-sp3_1.0.0.7
amd/epyc_7453_firmware < milanpi-sp3_1.0.0.7
... and 40 more
Published May 11, 2022
Tracked Since Feb 18, 2026