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CVE-2023-20585

🗓️ 16 Apr 2026 18:42:28Reported by AMDType 
cve
 cve
🔗 web.nvd.nist.gov👁 177 Views

Insufficient host buffer access checks in the input-output memory management unit enable privileged attackers with a compromised hypervisor to trigger out-of-bounds access and affect guest integrity.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
attackerkb
CVE-2023-20585
16 Apr 202618:42
–attackerkb
amd
Amd
IOMMU Write Buffer Vulnerability
14 Apr 202600:00
–amd
bdu_fstec
BDU FSTEC
AMD IOMMU Memory Management Unauthorized Access
22 Apr 202600:00
–bdu_fstec
circl
Circl
CVE-2023-20585
14 Apr 202615:49
–circl
cnnvd
CNNVD
Microsoft Input-Output Memory Management Unit security vulnerability
14 Apr 202600:00
–cnnvd
cvelist
Cvelist
CVE-2023-20585
16 Apr 202618:42
–cvelist
euvd
EUVD
EUVD-2023-24764
16 Apr 202621:31
–euvd
mskb
Microsoft KB
April 14, 2026—KB5082063(OS Build 26100.32690)
14 Apr 202614:00
–mskb
mscve
Microsoft CVE
AMD: CVE-2023-20585 IOMMU Write Buffer Vulnerability
14 Apr 202614:00
–mscve
ncsc
NCSC
Vulnerabilities in Microsoft Windows
15 Apr 202608:53
–ncsc
Rows per page
Vulners
Node
OR
amdepyc_7003Range<1.37.23
amdepyc_9004Range<1.37.31
amdepyc_7003Range<1.0.0.b
amdepyc_embeddedRange<1.0.0.a
[
  {
    "vendor": "AMD",
    "product": "AMD EPYC™ 7003 Series Processors",
    "versions": [
      {
        "status": "unaffected",
        "version": "SEV FW 1.37.23"
      }
    ],
    "defaultStatus": "affected"
  },
  {
    "vendor": "AMD",
    "product": "AMD EPYC™ 9004 Series Processors",
    "versions": [
      {
        "status": "unaffected",
        "version": "SEV FW 1.37.31"
      }
    ],
    "defaultStatus": "affected"
  },
  {
    "vendor": "AMD",
    "product": "AMD EPYC™ Embedded 7003 Series Processors",
    "versions": [
      {
        "status": "unaffected",
        "version": "EmbMilanPI-SP3 1.0.0.B"
      }
    ],
    "defaultStatus": "affected"
  },
  {
    "vendor": "AMD",
    "product": "AMD EPYC™ Embedded 9004 Series Processors",
    "versions": [
      {
        "status": "unaffected",
        "version": "EmbGenoaPI-1.0.0.A"
      }
    ],
    "defaultStatus": "affected"
  }
]

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17 Jun 2026 05:30Current
6.6Medium risk
Vulners AI Score6.6
CVSS 45.6
EPSS0.00098
SSVC
177