Medium 4.0Published Jun 9, 2026

CVE-2025-54509Improper access control for register interface in the Input-Output Memory Management Unit (IOMMU) could allow a privileged attacker to cause non-coherent accesses by the AMD Secure Processor (ASP), p…

Updated under an hour ago (Oct 28, 2026, 4:20 AM ET)

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It affects AMD EPYC™ 9004 Series Processors and 6 other products. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for AMD EPYC™ 9004 Series Processors

Exploited in the last 30 days

Improper access control for register interface in the Input-Output Memory Management Unit (IOMMU) could allow a privileged attacker to cause non-coherent accesses by the AMD Secure Processor (ASP), potentially resulting in loss of integrity.

CVSS: 4.0 MEDIUM (v4.0, CNA)CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/SA:N
Weakness (CWE): CWE-1262
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: AMD
NVD analysis: Awaiting Analysis
Record last updated: Jul 23, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

AMD AMD EPYC™ 9004 Series Processors amd:epyctm_9004_series_processors (from the name)	GenoaPI_1.0.0.H not affected	CNA record
AMD AMD EPYC™ 9005 Series Processors amd:epyctm_9005_series_processors (from the name)	TurinPI_1.0.0.8 not affected	CNA record
AMD AMD EPYC™ 8004 Series Processors amd:epyctm_8004_series_processors (from the name)	GenoaPI_1.0.0.H not affected	CNA record
AMD AMD EPYC™ Embedded 9004 Series Processors (formerly codenamed "Genoa") amd:epyctm_embedded_9004_series_processors_formerly_codenamed_genoa (from the name)	EmbGenoaPI-SP5 1.0.0.D not affected	CNA record
AMD AMD EPYC™ Embedded 9004 Series Processors (formerly codenamed "Bergamo") amd:epyctm_embedded_9004_series_processors_formerly_codenamed_bergamo (from the name)	EmbGenoaPI-SP5 1.0.0.D not affected	CNA record
AMD AMD EPYC™ Embedded 8004 Series Processors amd:epyctm_embedded_8004_series_processors (from the name)	EmbGenoaPI-SP5 1.0.0.D not affected	CNA record
AMD AMD EPYC™ Embedded 9005 Series Processors amd:epyctm_embedded_9005_series_processors (from the name)	EmbeddedTurinPI_SP5_1004 not affected	CNA record

References

References

https://www.amd.com/en/resources/product-security/bulletin/AMD-SB-3039.html

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.