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CVEs / CVE-2023-20585

CVE-2023-20585

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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.

The CVE record, via NVD · published 16 Apr 2026 · NVD status: Awaiting Analysis

Affected and fixed versions

No version ranges have been published in the sources we use. See the vendor's advisory in the references below.

Exploitation

Not in the CISA Known Exploited Vulnerabilities catalog as of 4 Nov 2026.

Severity

CVSS 4.05.6 medium
CVSS: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:X
Scored by the CNA ([email protected])
WeaknessCWE-788

On the Stackurity blog

References

Sources

Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.

This product uses data from the NVD API but is not endorsed or certified by the NVD.