VDB-369861 · CVE-2025-54509 · GCVE-0-2025-54509

AMD EPYC 9004 Processors prior GenoaPI_1.0.0.H improper access control for register interface

CVSS Meta Temp Score CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.	Current Exploit Price (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	CTI Interest Score Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
4.0	$0-$5k	0.64-

Summaryinfo

A vulnerability identified as problematic has been detected in AMD EPYC 9004 Processors, EPYC 9005 Processors, EPYC 8004 Processors, EPYC Embedded 9004 Processors, EPYC Embedded 8004 Processors and EPYC Embedded 9005 Processors. This affects an unknown function. Performing a manipulation results in improper access control for register interface. This vulnerability is identified as CVE-2025-54509. The attack is only possible with local access. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in AMD EPYC 9004 Processors, EPYC 9005 Processors, EPYC 8004 Processors, EPYC Embedded 9004 Processors, EPYC Embedded 8004 Processors and EPYC Embedded 9005 Processors. It has been classified as problematic. This affects some unknown functionality. The manipulation with an unknown input leads to a improper access control for register interface vulnerability. CWE is classifying the issue as CWE-1262. The product uses memory-mapped I/O registers that act as an interface to hardware functionality from software, but there is improper access control to those registers. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

The advisory is shared at amd.com. This vulnerability is uniquely identified as CVE-2025-54509 since 07/23/2025. The exploitability is told to be easy. An attack has to be approached locally. The exploitation needs additional levels of successful authentication. Neither technical details nor an exploit are publicly available.

Upgrading to version GenoaPI_1.0.0.H eliminates this vulnerability.

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Productinfo

Vendor

Name

License

commercial

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 4.2
VulDB Meta Temp Score: 4.0

VulDB Base Score: 4.2
VulDB Temp Score: 4.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Improper access control for register interface
CWE: CWE-1262 / CWE-284 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: Partially
Local: Yes
Remote: No

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: EPYC 9004 Processors/EPYC 9005 Processors/EPYC 8004 Processors/EPYC Embedded 9004 Processors/EPYC Embedded 8004 Processors/EPYC Embedded 9005 Processors GenoaPI_1.0.0.H

Timelineinfo

07/23/2025 CVE reserved
06/09/2026 +321 days Advisory disclosed
06/09/2026 +0 days VulDB entry created
06/09/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: amd.com
Status: Confirmed

CVE: CVE-2025-54509 (🔒)
GCVE (CVE): GCVE-0-2025-54509
GCVE (VulDB): GCVE-100-369861

Entryinfo

Created: 06/09/2026 21:18
Changes: 06/09/2026 21:18 (64)
Complete: 🔍
Cache ID: 216::103