CVE-2023-20585

mediumpriority · track · 0EPSS 0.001 · 1 %ileDEEUFRNLRU

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.10% (1st) EPSS

CVSS 5.3 · medium

Is it mine?

115 products

Check your exposure

Who says so?

6 sources

cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

Insufficient checks of the RMP on host buffer access in IOMMU may allow an attacker with privileges and a compromised hypervisor to trigger an out of bounds condition without RMP checks, resulting in a potential loss of confidential guest integrity.

cvss

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

5.6

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 1.7–5.6

v3.15.3mediumAV:L/AC:H/PR:H/UI:N/S:C/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:N/E:U/RL:O/RC:Csecondary · NCSC-NL NL

v4.05.6mediumCVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:Nsecondary · ENISA EU

v4.05.6mediumCVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · psirt@amd.com

v4.01.7lowCVSS:4.0/AV:L/AC:H/AT:N/PR:H/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · 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-788USCWE-788US

affected products (115)

Products and version ranges known to be affected.

Hitachi Virtual Storage Platform 5100all versionscert_bundDEcpe:/h:hitachi:virtual_storage_platform:5100
Hitachi Virtual Storage Platform 5100Hall versionscert_bundDEcpe:/h:hitachi:virtual_storage_platform:5100h
Hitachi Virtual Storage Platform 5200all versionscert_bundDEcpe:/h:hitachi:virtual_storage_platform:5200
Hitachi Virtual Storage Platform 5200Hall versionscert_bundDEcpe:/h:hitachi:virtual_storage_platform:5200h
Hitachi Virtual Storage Platform 5500all versionscert_bundDEcpe:/h:hitachi:virtual_storage_platform:5500
Hitachi Virtual Storage Platform 5500Hall versionscert_bundDEcpe:/h:hitachi:virtual_storage_platform:5500h
Hitachi Virtual Storage Platform 5600all versionscert_bundDEcpe:/h:hitachi:virtual_storage_platform:5600
Hitachi Virtual Storage Platform 5600Hall versionscert_bundDEcpe:/h:hitachi:virtual_storage_platform:5600h
Microsoft Windows 10 Version 1607all versionscert_bundDEcpe:/o:microsoft:windows_10:version_1607
Microsoft Windows 10 Version 1809all versionscert_bundDEcpe:/o:microsoft:windows_10:version_1809
Microsoft Windows 10 Version 21H2all versionscert_bundDEcpe:/o:microsoft:windows_10:version_21h2
Microsoft Windows 10 Version 22H2all versionscert_bundDEcpe:/o:microsoft:windows_10:version_22h2
Microsoft Windows 11 Version 23H2all versionscert_bundDEcpe:/o:microsoft:windows_11:version_23h2
Microsoft Windows 11 Version 24H2all versionscert_bundDEcpe:/o:microsoft:windows_11:version_24h2
Microsoft Windows 11 Version 25H2all versionscert_bundDEcpe:/o:microsoft:windows_11:version_25h2
Microsoft Windows 11 version 26H1all versionscert_bundDE
Microsoft Windows Admin Center in Azure Portalall versionscert_bundDEcpe:/a:microsoft:windows_admin_center:in_azure_portal
Microsoft Windows App Client for Desktopall versionscert_bundDEcpe:/o:microsoft:windows:app_client_for_desktop
Microsoft Windows Remote Desktop Clientall versionscert_bundDEcpe:/o:microsoft:windows:remote_desktop_client_for_desktop
Microsoft Windows Server 2012all versionscert_bundDEcpe:/o:microsoft:windows_server_2012:-

showing 20 of 115

advisories (4)

Vendor and ecosystem advisories describing this.

NCSC-2026-0119Kwetsbaarheden verholpen in Microsoft WindowsNL2026-04-15csaf · ncsc_nlNL
Microsoft heeft kwetsbaarheden verholpen in Windows.
WID-SEC-W-2026-1104Microsoft Windows: Mehrere SchwachstellenDeutsch2026-04-14csaf · cert_bundDE
Ein Angreifer kann mehrere Schwachstellen in Microsoft Windows Produkten ausnutzen, um seine Privilegien zu erhöhen, um Informationen offenzulegen, um Sicherheitsvorkehrungen zu umgehen, um beliebigen Programmcode auszuführen, um falsche Informationen darzustellen, um einen Denial of Service Angriff durchzuführen, und um einen nicht näher spezifizierten Angriff durchzuführen.
WID-SEC-W-2026-1111AMD Prozessoren: Mehrere SchwachstellenDeutsch2026-04-14csaf · cert_bundDE
Ein lokaler Angreifer kann mehrere Schwachstellen in AMD Prozessoren ausnutzen, um sich Administratorrechte zu verschaffen, beliebigen Code auszuführen, Daten zu manipulieren oder vertrauliche Informationen offenzulegen.
CERTFR-2026-AVI-1333Multiples vulnérabilités dans le noyau Linux d'UbuntuFrançais2026-10-16vendor · certfrFR

also known as (5)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cert_bund ncsc_nl certfr NVD CVE.org MITRE

published 2026-04-16modified 2026-06-17

references (4)

External citations — patches, advisories, analysis.

scry

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