Improper access control for register interface in the Input-Output Memory Management Unit…
Priority LOW 18CWE-1262Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00128 2nd percentileScored 2026-11-07
Fix Fixed AMD EPYC™ 9004 Series Processors (AMD): GenoaPI_1.0.0.HAMD EPYC™ 9005 Series Processors (AMD): TurinPI_1.0.0.8+5 more products
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| AMD | AMD EPYC™ 9004 Series Processors | — | GenoaPI_1.0.0.H | Patch available | CNA |
| AMD | AMD EPYC™ 9005 Series Processors | — | TurinPI_1.0.0.8 | Patch available | CNA |
| AMD | AMD EPYC™ 8004 Series Processors | — | GenoaPI_1.0.0.H | Patch available | CNA |
| AMD | AMD EPYC™ Embedded 9004 Series Processors (formerly codenamed "Genoa") | — | EmbGenoaPI-SP5 1.0.0.D | Patch available | CNA |
| AMD | AMD EPYC™ Embedded 9004 Series Processors (formerly codenamed "Bergamo") | — | EmbGenoaPI-SP5 1.0.0.D | Patch available | CNA |
| AMD | AMD EPYC™ Embedded 8004 Series Processors | — | EmbGenoaPI-SP5 1.0.0.D | Patch available | CNA |
| AMD | AMD EPYC™ Embedded 9005 Series Processors | — | EmbeddedTurinPI_SP5_1004 | Patch available | CNA |
- AMD EPYC™ 9004 Series Processors VendorAMD Affected — Fixed in GenoaPI_1.0.0.H Patch available CNA
- AMD EPYC™ 9005 Series Processors VendorAMD Affected — Fixed in TurinPI_1.0.0.8 Patch available CNA
- AMD EPYC™ 8004 Series Processors VendorAMD Affected — Fixed in GenoaPI_1.0.0.H Patch available CNA
- AMD EPYC™ Embedded 9004 Series Processors (formerly codenamed "Genoa") VendorAMD Affected — Fixed in EmbGenoaPI-SP5 1.0.0.D Patch available CNA
- AMD EPYC™ Embedded 9004 Series Processors (formerly codenamed "Bergamo") VendorAMD Affected — Fixed in EmbGenoaPI-SP5 1.0.0.D Patch available CNA
- AMD EPYC™ Embedded 8004 Series Processors VendorAMD Affected — Fixed in EmbGenoaPI-SP5 1.0.0.D Patch available CNA
- AMD EPYC™ Embedded 9005 Series Processors VendorAMD Affected — Fixed in EmbeddedTurinPI_SP5_1004 Patch available CNA
Remediation
- Fix · CNA AMD EPYC™ 9004 Series Processors (AMD) Fixed in GenoaPI_1.0.0.H
- Fix · CNA AMD EPYC™ 9005 Series Processors (AMD) Fixed in TurinPI_1.0.0.8
- Fix · CNA AMD EPYC™ 8004 Series Processors (AMD) Fixed in GenoaPI_1.0.0.H
- Fix · CNA AMD EPYC™ Embedded 9004 Series Processors (formerly codenamed "Genoa") (AMD) Fixed in EmbGenoaPI-SP5 1.0.0.D
- Fix · CNA AMD EPYC™ Embedded 9004 Series Processors (formerly codenamed "Bergamo") (AMD) Fixed in EmbGenoaPI-SP5 1.0.0.D
- Fix · CNA AMD EPYC™ Embedded 8004 Series Processors (AMD) Fixed in EmbGenoaPI-SP5 1.0.0.D
- Fix · CNA AMD EPYC™ Embedded 9005 Series Processors (AMD) Fixed in EmbeddedTurinPI_SP5_1004
Timeline
- 2026-10-02 Threatist record created from CVE-2025-54509
- 2026-10-03 Alias added: GHSA-gchr-732q-fg34
More AMD vulnerabilities
- TI-2026-36341 AI Tensor Engine for ROCm (AITER) 0.1.14 Unauthenticated RCE via MessageQueue.recv() Pickle Deserialization CVSS 4.0CRITICAL 9.2
- TI-2023-07046 Improper privilege management in AMD Radeon™ RX 5000 Series Graphics Cards CVSS 3.1HIGH 7.8
- TI-2023-04574 GPU kernel implementations susceptible to memory leak CVSS 3.1MEDIUM 6.5
- TI-2023-07042 Information disclosure through error messages in AMD Ryzen™ 3000 Series Desktop… CVSS 3.1MEDIUM 5.5
- TI-2023-23747 PVRIC (PowerVR Image Compression) on Imagination 2018 and later GPU devices offers… CVSS 3.1MEDIUM 5.3
- TI-2022-07839 Improper access control in System Management Mode (SMM) may allow an attacker to write to… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2025-54509 · CVE Program
- CVE-2025-54509 · NVD
- FIRST EPSS
- GHSA-gchr-732q-fg34 · GitHub Advisory Database · CC BY 4.0
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