CVE Tools
Sign in

CVE-2023-20585

Published: Apr 16, 2026Updated: Apr 17, 2026 Sources: CVE List NVD BDUCWE-788
NVD MITRE
5.3CVSSMEDIUM
EPSS Score
0.1%
Top 99.0%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

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 Vector Breakdown

AV:LAC:HC:NI:HA:N
Exploitability
AV:LAccess Vector
Local
AC:HAccess Complexity
High
Impact
C:NConfidentiality
None
I:HIntegrity
H
A:NAvailability
None
Open in CVSS calculator →

Weaknesses

CWE-788

Affected Products

AMD EPYC™ 7003 Series ProcessorsAMDHardware Firmware
AMD EPYC™ 9004 Series ProcessorsAMDHardware Firmware
AMD EPYC™ Embedded 7003 Series ProcessorsAMDHardware Firmware
AMD EPYC™ Embedded 9004 Series ProcessorsAMDHardware Firmware
Windows 11 25H2Microsoft Corp
On-premOS
Operating Systems / windows
amdcommercialUSHardware Firmwareaka advanced micro devices
microsoft corpcommercialUSOperating Systemsaka microsoft corporation
and 8 more affected products View all →

Exploitability

Official Patch Available

References

https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-3016.html
amd.com
https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-3016.html
amd.com
https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2023-20585
msrc.microsoft.com

Timeline

Published
Apr 16, 2026
Last Updated
Apr 17, 2026

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2023-20585 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows