CVE-2023-20587

HIGH

AMD EPYC SMM - SPI Flash Access Control Bypass Code Execution

Title source: manual
STIX 2.1

Description

Improper Access Control in System Management Mode (SMM) may allow an attacker access to the SPI flash potentially leading to arbitrary code execution.

References (1)

Core 1
Core References

Scores

CVSS v3 7.1
EPSS 0.0003
EPSS Percentile 10.5%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-284
Status published
Products (8)
AMD/1st Gen AMD EPYC™ Processors various
AMD/2nd Gen AMD EPYC™ Processors various
AMD/3rd Gen AMD EPYC™ Processors various
AMD/4th Gen AMD EPYC™ Processors various
AMD/AMD EPYC(TM) Embedded 3000 various
AMD/AMD EPYC(TM) Embedded 7002 various
AMD/AMD EPYC(TM) Embedded 7003 various
AMD/AMD EPYC(TM) Embedded 9003 various
Published Feb 13, 2024
Tracked Since Feb 18, 2026