CVE-2023-20585
VMware IOMMU Buffer Access RMP Vulnerability (Information Disclosure)
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.
INFO
Published Date :
April 16, 2026, 7:16 p.m.
Last Modified :
April 16, 2026, 8:16 p.m.
Remotely Exploit :
No
Source :
[email protected]
Affected Products
The following products are affected by CVE-2023-20585
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 4.0 | MEDIUM | b58fc414-a1e4-4f92-9d70-1add41838648 | ||||
| CVSS 4.0 | MEDIUM | [email protected] |
Solution
- Implement RMP checks for all host buffer accesses.
- Validate buffer boundaries rigorously.
- Ensure integrity of guest memory.
- Update system firmware and drivers.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2023-20585.
| URL | Resource |
|---|---|
| https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-3016.html |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-20585 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2023-20585
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-20585 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-20585 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
Apr. 16, 2026
Action Type Old Value New Value Changed Description Insuffient checks of the RMP on host buffer access in IOMMU may allow an attacker with privileges and a compromised HV to trigger an out of bounds condition without RMP checks resulting in a potential loss of confidential guest integrity. 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. -
New CVE Received by [email protected]
Apr. 16, 2026
Action Type Old Value New Value Added Description Insuffient checks of the RMP on host buffer access in IOMMU may allow an attacker with privileges and a compromised HV to trigger an out of bounds condition without RMP checks resulting in a potential loss of confidential guest integrity. Added CVSS V4.0 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 Added CWE CWE-788 Added Reference https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-3016.html