Medium severity · published Apr 16, 2026
CVE-2023-20585
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…
5.6
CVSS
0.1%
EPSS
No
On KEV
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.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.1% · higher than 1% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AE
AMD EPYC™ 7003 Series Processors · AMD
All versions, or not specified · source: vendor
AE
AMD EPYC™ 9004 Series Processors · AMD
All versions, or not specified · source: vendor
AE
AMD EPYC™ Embedded 7003 Series Processors · AMD
All versions, or not specified · source: vendor
AE
AMD EPYC™ Embedded 9004 Series Processors · AMD
All versions, or not specified · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-20585
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-20585
www.amd.com
https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-3016.html
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