Is CVE-2023-20585 in the CISA KEV catalog?

No. CVE-2023-20585 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-20585?

CVE-2023-20585 has a CVSS v3 base score of 5.3 (Important).

What is the EPSS score for CVE-2023-20585?

CVE-2023-20585 has an EPSS score of 0.10% (1th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-20585?

Install KB5083769 for Windows 11 Version 24H2. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2023-20585

HIGH

5.3

CVSS v3

NVD

Description

The vulnerability assigned to this CVE could lead to corruption of guest encrypted memory. The mitigation for this vulnerability requires a Windows update. This CVE is being documented in the Security Update Guide to announce that the latest builds of Windows enable the mitigation and provide protection against the vulnerability. Please see the following for more information: [https://www.amd.com/en/resources/product-security/bulletin/amd-sb-3016.html]

CWE-788

How to fix

Remediation Available

Windows 11 Version 24H2Windows

Install:KB5083769Microsoft

Install:KB5082063Microsoft

Windows 11 Version 25H2Windows

Install:KB5083769Microsoft

Windows Server 2025Windows

Install:KB5082063Microsoft

Windows Server 2025 (Server Core installation)Windows

Install:KB5082063Microsoft

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityHigh

Privileges RequiredHigh

User InteractionNone

ScopeChanged

Impact

ConfidentialityNone

IntegrityHigh

AvailabilityNone

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:H/A:N/E:U/RL:O/RC:C

Exploit Intelligence

0.10%probability of exploitation in 30 days

1stpercentile

Low risk: more likely to be exploited than 1% of all known CVEs.

References

Other references1

amd.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-17.