CVE-2025-54510Public exploit

Guest integrity compromise via unlocked MMIO routing

Published Apr 16, 2026 · Updated Apr 16, 2026

Missing lock verification in AMD Secure Processor firmware on AMD EPYC processors allows local users with admin access to compromise guest integrity. During boot, privileged UEFI code can program MMIO routing rules that override DRAM routing and drop Secure Processor writes to SEV-SNP reverse-map state. Administrative platform access is required; corrupted reverse-map state permits forged attestation reports and undetected debug-mode guest execution.

CVSS severity5.9
Medium
EPSS probability0.11%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Missing lock verification in AMD Secure Processor firmware on AMD EPYC processors allows local users with admin access to compromise guest integrity. During boot, privileged UEFI code can program MMIO routing rules that override DRAM routing and drop Secure Processor writes to SEV-SNP reverse-map state. Administrative platform access is required; corrupted reverse-map state permits forged attestation reports and undetected debug-mode guest execution.

The record

CVE
CVE-2025-54510
Published
Apr 16, 2026
Updated
Apr 16, 2026
Vendor
Advanced Micro Devices, Inc.
Product
AMD EPYC Embedded 8004 Series Processors
Classifications
CWE-414
Attack vector
local
Privileges
admin

Timeline

How it unfolded

  1. Apr 16, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 16, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected versions are unavailable in this record. Check the vendor advisory for version and patch details.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesadmin

What is affected?

Advanced Micro Devices, Inc. · AMD EPYC Embedded 8004 Series ProcessorsAffected versions are unavailable in this record.
Advanced Micro Devices, Inc. · AMD EPYC Embedded 7003 Series ProcessorsAffected versions are unavailable in this record.
Advanced Micro Devices, Inc. · AMD EPYC Embedded 9004 Series ProcessorsAffected versions are unavailable in this record.
Advanced Micro Devices, Inc. · AMD EPYC 9005 Series ProcessorsAffected versions are unavailable in this record.
Advanced Micro Devices, Inc. · AMD EPYC™ 8004 Series ProcessorsAffected versions are unavailable in this record.
Advanced Micro Devices, Inc. · AMD EPYC™ 9004 Series ProcessorsAffected versions are unavailable in this record.
Advanced Micro Devices, Inc. · AMD EPYC Embedded 9005 Series ProcessorsAffected versions are unavailable in this record.
Advanced Micro Devices, Inc. · AMD EPYC™ 7003 Series ProcessorsAffected versions are unavailable in this record.

Published CVSS scores

5.9Advanced Micro Devices Inc.CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-414Missing Lock Check

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo