CVE-2025-54509: CWE-1262 Register Interface Allows Software Access to Sensitive Data or Security Settings in AMD AMD EPYC™ 9004 Series Processors
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.
AI Analysis
Technical Summary
This vulnerability (CVE-2025-54509) concerns improper access control in the IOMMU register interface of AMD EPYC 9004 Series Processors. A privileged attacker might exploit this flaw to induce non-coherent memory accesses by the AMD Secure Processor, which could compromise system integrity. The CVSS 4.0 base score is 4.0, indicating medium severity. There is no vendor advisory or patch information available at this time, and no known exploits in the wild have been reported.
Potential Impact
The vulnerability could allow a privileged attacker to cause non-coherent accesses by the AMD Secure Processor, potentially leading to loss of system integrity. There is no indication of confidentiality or availability impact. Exploitation requires privileged access.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, monitor AMD advisories for updates. No specific mitigation steps are provided by the vendor at this time.
CVE-2025-54509: CWE-1262 Register Interface Allows Software Access to Sensitive Data or Security Settings in AMD AMD EPYC™ 9004 Series Processors
Description
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 v4.0
Score 4.0medium
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2025-54509) concerns improper access control in the IOMMU register interface of AMD EPYC 9004 Series Processors. A privileged attacker might exploit this flaw to induce non-coherent memory accesses by the AMD Secure Processor, which could compromise system integrity. The CVSS 4.0 base score is 4.0, indicating medium severity. There is no vendor advisory or patch information available at this time, and no known exploits in the wild have been reported.
Potential Impact
The vulnerability could allow a privileged attacker to cause non-coherent accesses by the AMD Secure Processor, potentially leading to loss of system integrity. There is no indication of confidentiality or availability impact. Exploitation requires privileged access.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, monitor AMD advisories for updates. No specific mitigation steps are provided by the vendor at this time.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- AMD
- Date Reserved
- 2025-07-23T15:01:50.734Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a286c5f8dd33fbd85743425
Added to database: 06/09/2026, 19:41:19 UTC
Last enriched: 07/23/2026, 21:01:50 UTC
Last updated: 07/31/2026, 19:22:55 UTC
Views: 53
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