CVE-2023-20594

Improper initialization of variables in the DXE driver may allow a privileged user to leak sensitive information via local access.

Published: 2023-09-20 Last update: 2026-06-17 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2023-20594 is rated Low Risk (20.2/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.18%). Monitor for updates and reassess as exploit intelligence or EPSS changes.

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-2023-20594

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 2026-06-15 0.05% 0.18% +0.12%
2 2025-08-23 0.03% 0.05% +0.02%
3 2025-08-01 — 0.03% —

Full EPSS history (5 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2023-20594

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.4 3.1 MEDIUM
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
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:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:N)
Service keeps running; no real outage angle.
 0.8 3.6 [email protected]

Weakness enumeration for CVE-2023-20594

Affected software / configurations for CVE-2023-20594

Vendor Product Version Raw CPE
amd epyc_7003_firmware milanpi_1.0.0.a cpe:2.3:o:amd:epyc_7003_firmware:milanpi_1.0.0.a:*:*:*:*:*:*:*
amd epyc_72f3_firmware milanpi_1.0.0.a cpe:2.3:o:amd:epyc_72f3_firmware:milanpi_1.0.0.a:*:*:*:*:*:*:*
amd epyc_7313_firmware milanpi_1.0.0.a cpe:2.3:o:amd:epyc_7313_firmware:milanpi_1.0.0.a:*:*:*:*:*:*:*
amd epyc_7313p_firmware milanpi_1.0.0.a cpe:2.3:o:amd:epyc_7313p_firmware:milanpi_1.0.0.a:*:*:*:*:*:*:*
amd epyc_7343_firmware milanpi_1.0.0.a cpe:2.3:o:amd:epyc_7343_firmware:milanpi_1.0.0.a:*:*:*:*:*:*:*
amd epyc_7373x_firmware milanpi_1.0.0.a cpe:2.3:o:amd:epyc_7373x_firmware:milanpi_1.0.0.a:*:*:*:*:*:*:*
amd epyc_73f3_firmware milanpi_1.0.0.a cpe:2.3:o:amd:epyc_73f3_firmware:milanpi_1.0.0.a:*:*:*:*:*:*:*
amd epyc_7443_firmware milanpi_1.0.0.a cpe:2.3:o:amd:epyc_7443_firmware:milanpi_1.0.0.a:*:*:*:*:*:*:*
amd epyc_7413_firmware milanpi_1.0.0.a cpe:2.3:o:amd:epyc_7413_firmware:milanpi_1.0.0.a:*:*:*:*:*:*:*
amd epyc_7443p_firmware milanpi_1.0.0.a cpe:2.3:o:amd:epyc_7443p_firmware:milanpi_1.0.0.a:*:*:*:*:*:*:*
amd epyc_7453_firmware milanpi_1.0.0.a cpe:2.3:o:amd:epyc_7453_firmware:milanpi_1.0.0.a:*:*:*:*:*:*:*
amd epyc_74f3_firmware milanpi_1.0.0.a cpe:2.3:o:amd:epyc_74f3_firmware:milanpi_1.0.0.a:*:*:*:*:*:*:*
amd epyc_7513_firmware milanpi_1.0.0.a cpe:2.3:o:amd:epyc_7513_firmware:milanpi_1.0.0.a:*:*:*:*:*:*:*
amd epyc_7543_firmware milanpi_1.0.0.a cpe:2.3:o:amd:epyc_7543_firmware:milanpi_1.0.0.a:*:*:*:*:*:*:*
amd epyc_7543p_firmware milanpi_1.0.0.a cpe:2.3:o:amd:epyc_7543p_firmware:milanpi_1.0.0.a:*:*:*:*:*:*:*
amd epyc_7573x_firmware milanpi_1.0.0.a cpe:2.3:o:amd:epyc_7573x_firmware:milanpi_1.0.0.a:*:*:*:*:*:*:*
amd epyc_75f3_firmware milanpi_1.0.0.a cpe:2.3:o:amd:epyc_75f3_firmware:milanpi_1.0.0.a:*:*:*:*:*:*:*
amd epyc_7643_firmware milanpi_1.0.0.a cpe:2.3:o:amd:epyc_7643_firmware:milanpi_1.0.0.a:*:*:*:*:*:*:*
amd epyc_7663_firmware milanpi_1.0.0.a cpe:2.3:o:amd:epyc_7663_firmware:milanpi_1.0.0.a:*:*:*:*:*:*:*
amd epyc_7713_firmware milanpi_1.0.0.a cpe:2.3:o:amd:epyc_7713_firmware:milanpi_1.0.0.a:*:*:*:*:*:*:*
amd epyc_7713p_firmware milanpi_1.0.0.a cpe:2.3:o:amd:epyc_7713p_firmware:milanpi_1.0.0.a:*:*:*:*:*:*:*
amd epyc_7743_firmware milanpi_1.0.0.a cpe:2.3:o:amd:epyc_7743_firmware:milanpi_1.0.0.a:*:*:*:*:*:*:*
amd epyc_7763_firmware milanpi_1.0.0.a cpe:2.3:o:amd:epyc_7763_firmware:milanpi_1.0.0.a:*:*:*:*:*:*:*
amd epyc_7773x_firmware milanpi_1.0.0.a cpe:2.3:o:amd:epyc_7773x_firmware:milanpi_1.0.0.a:*:*:*:*:*:*:*
amd ryzen_3_3100_firmware comboam4pi_1.0.0.9 cpe:2.3:o:amd:ryzen_3_3100_firmware:comboam4pi_1.0.0.9:*:*:*:*:*:*:*
amd ryzen_3_3100_firmware comboam4v2pi_1.2.0.8 cpe:2.3:o:amd:ryzen_3_3100_firmware:comboam4v2pi_1.2.0.8:*:*:*:*:*:*:*
amd ryzen_3_3200g_firmware comboam4pi_1.0.0.9 cpe:2.3:o:amd:ryzen_3_3200g_firmware:comboam4pi_1.0.0.9:*:*:*:*:*:*:*
amd ryzen_3_3200g_firmware comboam4v2pi_1.2.0.8 cpe:2.3:o:amd:ryzen_3_3200g_firmware:comboam4v2pi_1.2.0.8:*:*:*:*:*:*:*
amd ryzen_3_3200ge_firmware comboam4pi_1.0.0.9 cpe:2.3:o:amd:ryzen_3_3200ge_firmware:comboam4pi_1.0.0.9:*:*:*:*:*:*:*
amd ryzen_3_3200ge_firmware comboam4v2pi_1.2.0.8 cpe:2.3:o:amd:ryzen_3_3200ge_firmware:comboam4v2pi_1.2.0.8:*:*:*:*:*:*:*
amd ryzen_3_3200u_firmware comboam4pi_1.0.0.9 cpe:2.3:o:amd:ryzen_3_3200u_firmware:comboam4pi_1.0.0.9:*:*:*:*:*:*:*
amd ryzen_3_3200u_firmware comboam4v2pi_1.2.0.8 cpe:2.3:o:amd:ryzen_3_3200u_firmware:comboam4v2pi_1.2.0.8:*:*:*:*:*:*:*
amd ryzen_3_3250c_firmware comboam4pi_1.0.0.9 cpe:2.3:o:amd:ryzen_3_3250c_firmware:comboam4pi_1.0.0.9:*:*:*:*:*:*:*
amd ryzen_3_3250c_firmware comboam4v2pi_1.2.0.8 cpe:2.3:o:amd:ryzen_3_3250c_firmware:comboam4v2pi_1.2.0.8:*:*:*:*:*:*:*
amd ryzen_3_3250u_firmware comboam4pi_1.0.0.9 cpe:2.3:o:amd:ryzen_3_3250u_firmware:comboam4pi_1.0.0.9:*:*:*:*:*:*:*
amd ryzen_3_3250u_firmware comboam4v2pi_1.2.0.8 cpe:2.3:o:amd:ryzen_3_3250u_firmware:comboam4v2pi_1.2.0.8:*:*:*:*:*:*:*
amd ryzen_3_3300_firmware comboam4pi_1.0.0.9 cpe:2.3:o:amd:ryzen_3_3300_firmware:comboam4pi_1.0.0.9:*:*:*:*:*:*:*
amd ryzen_3_3300_firmware comboam4v2pi_1.2.0.8 cpe:2.3:o:amd:ryzen_3_3300_firmware:comboam4v2pi_1.2.0.8:*:*:*:*:*:*:*
amd ryzen_3_3300g_firmware comboam4pi_1.0.0.9 cpe:2.3:o:amd:ryzen_3_3300g_firmware:comboam4pi_1.0.0.9:*:*:*:*:*:*:*
amd ryzen_3_3300g_firmware comboam4v2pi_1.2.0.8 cpe:2.3:o:amd:ryzen_3_3300g_firmware:comboam4v2pi_1.2.0.8:*:*:*:*:*:*:*
amd ryzen_3_3300u_firmware comboam4pi_1.0.0.9 cpe:2.3:o:amd:ryzen_3_3300u_firmware:comboam4pi_1.0.0.9:*:*:*:*:*:*:*
amd ryzen_3_3300u_firmware comboam4v2pi_1.2.0.8 cpe:2.3:o:amd:ryzen_3_3300u_firmware:comboam4v2pi_1.2.0.8:*:*:*:*:*:*:*
amd ryzen_3_3300x_firmware comboam4pi_1.0.0.9 cpe:2.3:o:amd:ryzen_3_3300x_firmware:comboam4pi_1.0.0.9:*:*:*:*:*:*:*
amd ryzen_3_3300x_firmware comboam4v2pi_1.2.0.8 cpe:2.3:o:amd:ryzen_3_3300x_firmware:comboam4v2pi_1.2.0.8:*:*:*:*:*:*:*
amd ryzen_3_3350u_firmware comboam4pi_1.0.0.9 cpe:2.3:o:amd:ryzen_3_3350u_firmware:comboam4pi_1.0.0.9:*:*:*:*:*:*:*
amd ryzen_3_3350u_firmware comboam4v2pi_1.2.0.8 cpe:2.3:o:amd:ryzen_3_3350u_firmware:comboam4v2pi_1.2.0.8:*:*:*:*:*:*:*
amd ryzen_3_3450u_firmware comboam4pi_1.0.0.9 cpe:2.3:o:amd:ryzen_3_3450u_firmware:comboam4pi_1.0.0.9:*:*:*:*:*:*:*
amd ryzen_3_3450u_firmware comboam4v2pi_1.2.0.8 cpe:2.3:o:amd:ryzen_3_3450u_firmware:comboam4v2pi_1.2.0.8:*:*:*:*:*:*:*
amd ryzen_3_3500c_firmware comboam4pi_1.0.0.9 cpe:2.3:o:amd:ryzen_3_3500c_firmware:comboam4pi_1.0.0.9:*:*:*:*:*:*:*
amd ryzen_3_3500c_firmware comboam4v2pi_1.2.0.8 cpe:2.3:o:amd:ryzen_3_3500c_firmware:comboam4v2pi_1.2.0.8:*:*:*:*:*:*:*
amd ryzen_3_3500u_firmware comboam4pi_1.0.0.9 cpe:2.3:o:amd:ryzen_3_3500u_firmware:comboam4pi_1.0.0.9:*:*:*:*:*:*:*
amd ryzen_3_3500u_firmware comboam4v2pi_1.2.0.8 cpe:2.3:o:amd:ryzen_3_3500u_firmware:comboam4v2pi_1.2.0.8:*:*:*:*:*:*:*
amd ryzen_3_3550h_firmware comboam4pi_1.0.0.9 cpe:2.3:o:amd:ryzen_3_3550h_firmware:comboam4pi_1.0.0.9:*:*:*:*:*:*:*
amd ryzen_3_3550h_firmware comboam4v2pi_1.2.0.8 cpe:2.3:o:amd:ryzen_3_3550h_firmware:comboam4v2pi_1.2.0.8:*:*:*:*:*:*:*
amd ryzen_3_3580u_firmware comboam4pi_1.0.0.9 cpe:2.3:o:amd:ryzen_3_3580u_firmware:comboam4pi_1.0.0.9:*:*:*:*:*:*:*
amd ryzen_3_3580u_firmware comboam4v2pi_1.2.0.8 cpe:2.3:o:amd:ryzen_3_3580u_firmware:comboam4v2pi_1.2.0.8:*:*:*:*:*:*:*
amd ryzen_3_3700c_firmware comboam4pi_1.0.0.9 cpe:2.3:o:amd:ryzen_3_3700c_firmware:comboam4pi_1.0.0.9:*:*:*:*:*:*:*
amd ryzen_3_3700c_firmware comboam4v2pi_1.2.0.8 cpe:2.3:o:amd:ryzen_3_3700c_firmware:comboam4v2pi_1.2.0.8:*:*:*:*:*:*:*
amd ryzen_3_3700u_firmware comboam4pi_1.0.0.9 cpe:2.3:o:amd:ryzen_3_3700u_firmware:comboam4pi_1.0.0.9:*:*:*:*:*:*:*
amd ryzen_3_3700u_firmware comboam4v2pi_1.2.0.8 cpe:2.3:o:amd:ryzen_3_3700u_firmware:comboam4v2pi_1.2.0.8:*:*:*:*:*:*:*
amd ryzen_3_3750h_firmware comboam4pi_1.0.0.9 cpe:2.3:o:amd:ryzen_3_3750h_firmware:comboam4pi_1.0.0.9:*:*:*:*:*:*:*
amd ryzen_3_3750h_firmware comboam4v2pi_1.2.0.8 cpe:2.3:o:amd:ryzen_3_3750h_firmware:comboam4v2pi_1.2.0.8:*:*:*:*:*:*:*
amd ryzen_3_3780u_firmware comboam4pi_1.0.0.9 cpe:2.3:o:amd:ryzen_3_3780u_firmware:comboam4pi_1.0.0.9:*:*:*:*:*:*:*
amd ryzen_3_3780u_firmware comboam4v2pi_1.2.0.8 cpe:2.3:o:amd:ryzen_3_3780u_firmware:comboam4v2pi_1.2.0.8:*:*:*:*:*:*:*
amd ryzen_3100_firmware comboam4pi_1.0.0.9 cpe:2.3:o:amd:ryzen_3100_firmware:comboam4pi_1.0.0.9:*:*:*:*:*:*:*
amd ryzen_3100_firmware comboam4v2pi_1.2.0.8 cpe:2.3:o:amd:ryzen_3100_firmware:comboam4v2pi_1.2.0.8:*:*:*:*:*:*:*
amd ryzen_3300x_firmware comboam4pi_1.0.0.9 cpe:2.3:o:amd:ryzen_3300x_firmware:comboam4pi_1.0.0.9:*:*:*:*:*:*:*
amd ryzen_3300x_firmware comboam4v2pi_1.2.0.8 cpe:2.3:o:amd:ryzen_3300x_firmware:comboam4v2pi_1.2.0.8:*:*:*:*:*:*:*
amd ryzen_3500_firmware comboam4pi_1.0.0.9 cpe:2.3:o:amd:ryzen_3500_firmware:comboam4pi_1.0.0.9:*:*:*:*:*:*:*
amd ryzen_3500_firmware comboam4v2pi_1.2.0.8 cpe:2.3:o:amd:ryzen_3500_firmware:comboam4v2pi_1.2.0.8:*:*:*:*:*:*:*
amd ryzen_3500x_firmware comboam4pi_1.0.0.9 cpe:2.3:o:amd:ryzen_3500x_firmware:comboam4pi_1.0.0.9:*:*:*:*:*:*:*
amd ryzen_3500x_firmware comboam4v2pi_1.2.0.8 cpe:2.3:o:amd:ryzen_3500x_firmware:comboam4v2pi_1.2.0.8:*:*:*:*:*:*:*
amd ryzen_3600_firmware comboam4pi_1.0.0.9 cpe:2.3:o:amd:ryzen_3600_firmware:comboam4pi_1.0.0.9:*:*:*:*:*:*:*
amd ryzen_3600_firmware comboam4v2pi_1.2.0.8 cpe:2.3:o:amd:ryzen_3600_firmware:comboam4v2pi_1.2.0.8:*:*:*:*:*:*:*
amd ryzen_3600x_firmware comboam4pi_1.0.0.9 cpe:2.3:o:amd:ryzen_3600x_firmware:comboam4pi_1.0.0.9:*:*:*:*:*:*:*
amd ryzen_3600x_firmware comboam4v2pi_1.2.0.8 cpe:2.3:o:amd:ryzen_3600x_firmware:comboam4v2pi_1.2.0.8:*:*:*:*:*:*:*
amd ryzen_3600xt_firmware comboam4pi_1.0.0.9 cpe:2.3:o:amd:ryzen_3600xt_firmware:comboam4pi_1.0.0.9:*:*:*:*:*:*:*
amd ryzen_3600xt_firmware comboam4v2pi_1.2.0.8 cpe:2.3:o:amd:ryzen_3600xt_firmware:comboam4v2pi_1.2.0.8:*:*:*:*:*:*:*
amd ryzen_3800x_firmware comboam4pi_1.0.0.9 cpe:2.3:o:amd:ryzen_3800x_firmware:comboam4pi_1.0.0.9:*:*:*:*:*:*:*
amd ryzen_3800x_firmware comboam4v2pi_1.2.0.8 cpe:2.3:o:amd:ryzen_3800x_firmware:comboam4v2pi_1.2.0.8:*:*:*:*:*:*:*

References for CVE-2023-20594

cvelogic Threat Intelligence