CVE-2023-20591

Improper re-initialization of IOMMU during the DRTM event may permit an untrusted platform configuration to persist, allowing an attacker to read or modify hypervisor memory, potentially resulting in loss of confidentiality, integrity, and availability.

Published: 2024-08-13 Last update: 2025-03-13 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-20591 is rated Moderate Risk (45.7/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.34%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2023-20591

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-01-02 0.22% 0.34% +0.11%
2 2025-11-21 0.38% 0.22% -0.16%
3 2025-11-18 — 0.38% —

Full EPSS history (8 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-20591

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.5 3.1 MEDIUM
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:L)
Some sensitive info could get out, but not a total data dump.
Integrity (I:L)
Attackers could change some data, but it’s limited—not everything goes.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
 2.2 3.7 [email protected]
10.0 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.9 6.0 [email protected]

Weakness enumeration for CVE-2023-20591

Affected software / configurations for CVE-2023-20591

Vendor Product Version Raw CPE
amd epyc_8024pn_firmware < genoapi_1.0.0.8 cpe:2.3:o:amd:epyc_8024pn_firmware:*:*:*:*:*:*:*:*
amd epyc_8024p_firmware < genoapi_1.0.0.8 cpe:2.3:o:amd:epyc_8024p_firmware:*:*:*:*:*:*:*:*
amd epyc_8124pn_firmware < genoapi_1.0.0.8 cpe:2.3:o:amd:epyc_8124pn_firmware:*:*:*:*:*:*:*:*
amd epyc_8124p_firmware < genoapi_1.0.0.8 cpe:2.3:o:amd:epyc_8124p_firmware:*:*:*:*:*:*:*:*
amd epyc_8224pn_firmware < genoapi_1.0.0.8 cpe:2.3:o:amd:epyc_8224pn_firmware:*:*:*:*:*:*:*:*
amd epyc_8224p_firmware < genoapi_1.0.0.8 cpe:2.3:o:amd:epyc_8224p_firmware:*:*:*:*:*:*:*:*
amd epyc_8324pn_firmware < genoapi_1.0.0.8 cpe:2.3:o:amd:epyc_8324pn_firmware:*:*:*:*:*:*:*:*
amd epyc_8324p_firmware < genoapi_1.0.0.8 cpe:2.3:o:amd:epyc_8324p_firmware:*:*:*:*:*:*:*:*
amd epyc_8434pn_firmware < genoapi_1.0.0.8 cpe:2.3:o:amd:epyc_8434pn_firmware:*:*:*:*:*:*:*:*
amd epyc_8434p_firmware < genoapi_1.0.0.8 cpe:2.3:o:amd:epyc_8434p_firmware:*:*:*:*:*:*:*:*
amd epyc_8534pn_firmware < genoapi_1.0.0.8 cpe:2.3:o:amd:epyc_8534pn_firmware:*:*:*:*:*:*:*:*
amd epyc_8534p_firmware < genoapi_1.0.0.8 cpe:2.3:o:amd:epyc_8534p_firmware:*:*:*:*:*:*:*:*
amd epyc_9734_firmware < genoapi_1.0.0.8 cpe:2.3:o:amd:epyc_9734_firmware:*:*:*:*:*:*:*:*
amd epyc_9754s_firmware < genoapi_1.0.0.8 cpe:2.3:o:amd:epyc_9754s_firmware:*:*:*:*:*:*:*:*
amd epyc_9754_firmware < genoapi_1.0.0.8 cpe:2.3:o:amd:epyc_9754_firmware:*:*:*:*:*:*:*:*
amd epyc_9184x_firmware < genoapi_1.0.0.8 cpe:2.3:o:amd:epyc_9184x_firmware:*:*:*:*:*:*:*:*
amd epyc_9384x_firmware < genoapi_1.0.0.8 cpe:2.3:o:amd:epyc_9384x_firmware:*:*:*:*:*:*:*:*
amd epyc_9684x_firmware < genoapi_1.0.0.8 cpe:2.3:o:amd:epyc_9684x_firmware:*:*:*:*:*:*:*:*
amd epyc_9124_firmware < genoapi_1.0.0.8 cpe:2.3:o:amd:epyc_9124_firmware:*:*:*:*:*:*:*:*
amd epyc_9174f_firmware < genoapi_1.0.0.8 cpe:2.3:o:amd:epyc_9174f_firmware:*:*:*:*:*:*:*:*
amd epyc_9224_firmware < genoapi_1.0.0.8 cpe:2.3:o:amd:epyc_9224_firmware:*:*:*:*:*:*:*:*
amd epyc_9254_firmware < genoapi_1.0.0.8 cpe:2.3:o:amd:epyc_9254_firmware:*:*:*:*:*:*:*:*
amd epyc_9274f_firmware < genoapi_1.0.0.8 cpe:2.3:o:amd:epyc_9274f_firmware:*:*:*:*:*:*:*:*
amd epyc_9334_firmware < genoapi_1.0.0.8 cpe:2.3:o:amd:epyc_9334_firmware:*:*:*:*:*:*:*:*
amd epyc_9354_firmware < genoapi_1.0.0.8 cpe:2.3:o:amd:epyc_9354_firmware:*:*:*:*:*:*:*:*
amd epyc_9354p_firmware < genoapi_1.0.0.8 cpe:2.3:o:amd:epyc_9354p_firmware:*:*:*:*:*:*:*:*
amd epyc_9374f_firmware < genoapi_1.0.0.8 cpe:2.3:o:amd:epyc_9374f_firmware:*:*:*:*:*:*:*:*
amd epyc_9454_firmware < genoapi_1.0.0.8 cpe:2.3:o:amd:epyc_9454_firmware:*:*:*:*:*:*:*:*
amd epyc_9454p_firmware < genoapi_1.0.0.8 cpe:2.3:o:amd:epyc_9454p_firmware:*:*:*:*:*:*:*:*
amd epyc_9474f_firmware < genoapi_1.0.0.8 cpe:2.3:o:amd:epyc_9474f_firmware:*:*:*:*:*:*:*:*
amd epyc_9534_firmware < genoapi_1.0.0.8 cpe:2.3:o:amd:epyc_9534_firmware:*:*:*:*:*:*:*:*
amd epyc_9554_firmware < genoapi_1.0.0.8 cpe:2.3:o:amd:epyc_9554_firmware:*:*:*:*:*:*:*:*
amd epyc_9554p_firmware < genoapi_1.0.0.8 cpe:2.3:o:amd:epyc_9554p_firmware:*:*:*:*:*:*:*:*
amd epyc_9634_firmware < genoapi_1.0.0.8 cpe:2.3:o:amd:epyc_9634_firmware:*:*:*:*:*:*:*:*
amd epyc_9654_firmware < genoapi_1.0.0.8 cpe:2.3:o:amd:epyc_9654_firmware:*:*:*:*:*:*:*:*
amd epyc_9654p_firmware < genoapi_1.0.0.8 cpe:2.3:o:amd:epyc_9654p_firmware:*:*:*:*:*:*:*:*
amd epyc_7203_firmware < milanpi_1.0.0.b cpe:2.3:o:amd:epyc_7203_firmware:*:*:*:*:*:*:*:*
amd epyc_7203p_firmware < milanpi_1.0.0.b cpe:2.3:o:amd:epyc_7203p_firmware:*:*:*:*:*:*:*:*
amd epyc_72f3_firmware < milanpi_1.0.0.b cpe:2.3:o:amd:epyc_72f3_firmware:*:*:*:*:*:*:*:*
amd epyc_7303_firmware < milanpi_1.0.0.b cpe:2.3:o:amd:epyc_7303_firmware:*:*:*:*:*:*:*:*
amd epyc_7303p_firmware < milanpi_1.0.0.b cpe:2.3:o:amd:epyc_7303p_firmware:*:*:*:*:*:*:*:*
amd epyc_7313_firmware < milanpi_1.0.0.b cpe:2.3:o:amd:epyc_7313_firmware:*:*:*:*:*:*:*:*
amd epyc_7313p_firmware < milanpi_1.0.0.b cpe:2.3:o:amd:epyc_7313p_firmware:*:*:*:*:*:*:*:*
amd epyc_7343_firmware < milanpi_1.0.0.b cpe:2.3:o:amd:epyc_7343_firmware:*:*:*:*:*:*:*:*
amd epyc_73f3_firmware < milanpi_1.0.0.b cpe:2.3:o:amd:epyc_73f3_firmware:*:*:*:*:*:*:*:*
amd epyc_7373x_firmware < milanpi_1.0.0.b cpe:2.3:o:amd:epyc_7373x_firmware:*:*:*:*:*:*:*:*
amd epyc_7413_firmware < milanpi_1.0.0.b cpe:2.3:o:amd:epyc_7413_firmware:*:*:*:*:*:*:*:*
amd epyc_7443_firmware < milanpi_1.0.0.b cpe:2.3:o:amd:epyc_7443_firmware:*:*:*:*:*:*:*:*
amd epyc_7443p_firmware < milanpi_1.0.0.b cpe:2.3:o:amd:epyc_7443p_firmware:*:*:*:*:*:*:*:*
amd epyc_74f3_firmware < milanpi_1.0.0.b cpe:2.3:o:amd:epyc_74f3_firmware:*:*:*:*:*:*:*:*
amd epyc_7453_firmware < milanpi_1.0.0.b cpe:2.3:o:amd:epyc_7453_firmware:*:*:*:*:*:*:*:*
amd epyc_7473x_firmware < milanpi_1.0.0.b cpe:2.3:o:amd:epyc_7473x_firmware:*:*:*:*:*:*:*:*
amd epyc_7513_firmware < milanpi_1.0.0.b cpe:2.3:o:amd:epyc_7513_firmware:*:*:*:*:*:*:*:*
amd epyc_7543_firmware < milanpi_1.0.0.b cpe:2.3:o:amd:epyc_7543_firmware:*:*:*:*:*:*:*:*
amd epyc_7543p_firmware < milanpi_1.0.0.b cpe:2.3:o:amd:epyc_7543p_firmware:*:*:*:*:*:*:*:*
amd epyc_75f3_firmware < milanpi_1.0.0.b cpe:2.3:o:amd:epyc_75f3_firmware:*:*:*:*:*:*:*:*
amd epyc_7573x_firmware < milanpi_1.0.0.b cpe:2.3:o:amd:epyc_7573x_firmware:*:*:*:*:*:*:*:*
amd epyc_7643_firmware < milanpi_1.0.0.b cpe:2.3:o:amd:epyc_7643_firmware:*:*:*:*:*:*:*:*
amd epyc_7773x_firmware < milanpi_1.0.0.b cpe:2.3:o:amd:epyc_7773x_firmware:*:*:*:*:*:*:*:*
amd epyc_7643p_firmware < milanpi_1.0.0.b cpe:2.3:o:amd:epyc_7643p_firmware:*:*:*:*:*:*:*:*
amd epyc_7663_firmware < milanpi_1.0.0.b cpe:2.3:o:amd:epyc_7663_firmware:*:*:*:*:*:*:*:*
amd epyc_7663p_firmware < milanpi_1.0.0.b cpe:2.3:o:amd:epyc_7663p_firmware:*:*:*:*:*:*:*:*
amd epyc_7713_firmware < milanpi_1.0.0.b cpe:2.3:o:amd:epyc_7713_firmware:*:*:*:*:*:*:*:*
amd epyc_7713p_firmware < milanpi_1.0.0.b cpe:2.3:o:amd:epyc_7713p_firmware:*:*:*:*:*:*:*:*
amd epyc_7763_firmware < milanpi_1.0.0.b cpe:2.3:o:amd:epyc_7763_firmware:*:*:*:*:*:*:*:*

References for CVE-2023-20591

cvelogic Threat Intelligence