CVE-2023-20566

highpriority · track · 30EPSS 0.004 · 30 %ileDEEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

0.37% (30th) EPSS

CVSS 7.5 · high

Is it mine?

83 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

Improper address validation in ASP with SNP enabled may potentially allow an attacker to compromise guest memory integrity.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5.3–7.5

v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.17.5highAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:Nsecondary · FSTEC (BDU) RU

v3.15.3mediumCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:Nsecondary · ENISA EU

v3.15.3mediumCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:Nsecondary · psirt@amd.comexploitability 0.8 · impact 4

v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-119US

affected products (83)

Products and version ranges known to be affected.

AMD Prozessorall versionscert_bundDEcpe:/h:amd:amd_processor:-
Dell BIOSall versionscert_bundDEcpe:/h:dell:bios:-
Dell Computerall versionscert_bundDEcpe:/o:dell:dell_computer:-
HP Computerall versionscert_bundDEcpe:/h:hp:computer:-
HPE ProLiantall versionscert_bundDEcpe:/h:hp:proliant:-
IBM Power Hardware Management Console V10all versionscert_bundDEcpe:/a:ibm:hardware_management_console:v10
Lenovo BIOSall versionscert_bundDEcpe:/h:lenovo:bios:-
Lenovo Computerall versionscert_bundDEcpe:/h:lenovo:computer:-
Open Source CentOSall versionscert_bundDEcpe:/o:centos:centos:-
Oracle Linuxall versionscert_bundDEcpe:/o:oracle:linux:-
Red Hat Enterprise Linuxall versionscert_bundDEcpe:/o:redhat:enterprise_linux:-
SUSE Linuxall versionscert_bundDEcpe:/o:suse:suse_linux:-
AMD 3rd Gen AMD EPYC™ Processorsall versionsenisa_euvdEU
AMD 4th Gen AMD EPYC™ Processorsall versionsenisa_euvdEU
AMD AMD EPYC™ Embedded 7003all versionsenisa_euvdEU
AMD AMD EPYC™ Embedded 9003all versionsenisa_euvdEU
Advanced Micro Devices Inc. 3rd Gen AMD EPYC≤ MilanPI 1.0.0.Bfstec_bduRU
Advanced Micro Devices Inc. 4th Gen AMD EPYC≤ GenoaPI 1.0.0.7fstec_bduRU
amd epyc 7203 firmware< milanpi_1.0.0.bnvdUScpe:2.3:o:amd:epyc_7203_firmware:*:*:*:*:*:*:*:*
amd epyc 7203p firmware< milanpi_1.0.0.bnvdUScpe:2.3:o:amd:epyc_7203p_firmware:*:*:*:*:*:*:*:*

showing 20 of 83

advisories (1)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2023-2916AMD Prozessor: Mehrere SchwachstellenDeutsch2023-11-14csaf · cert_bundDE
Ein lokaler Angreifer kann mehrere Schwachstellen in AMD Prozessor ausnutzen, um beliebigen Code auszuführen, einen Denial-of-Service-Zustand zu verursachen, Dateien zu manipulieren, vertrauliche Informationen offenzulegen oder seine Privilegien zu erweitern.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund nvd NVD CVE.org MITRE

published 2023-11-14modified 2026-06-17

references (5)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan