AMD AMD EPYC™ Embedded 9004 Series Processors (formerly codenamed "Genoa") vulnerabilities

CVE-2025-54509 Medium · 4.0 CWE-1262 Jun 9, 2026

Improper access control for register interface in the Input-Output Memory Management…

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.

CVE-2025-61972 High · 8.5 CWE-1233 May 13, 2026

Missing lock bit protection for NBIO registers could allow a local admin-privileged…

Missing lock bit protection for NBIO registers could allow a local admin-privileged attacker to gain arbitrary System Management Network (SMN) access, potentially resulting in arbitrary code execution in AMD Secure Processor (ASP) and loss of the SEV-SNP guest's confidentiality and integrity.

CVE-2025-61971 Medium · 5.9 CWE-1233 May 13, 2026

Missing lock bit protection for NBIO registers could allow a local admin-privileged…

Missing lock bit protection for NBIO registers could allow a local admin-privileged attacker to modify MMIO routing configurations, potentially resulting in loss of SEV-SNP guest integrity.

CVE-2024-36315 Medium · 5.7 CWE-693 May 13, 2026

Improper enforcement of the LFENCE serialization property may allow an attacker to…

Improper enforcement of the LFENCE serialization property may allow an attacker to bypass speculation barriers and potentially disclose sensitive information, potentially resulting in loss of confidentiality.

CVE-2025-54502 High · 7.5 CWE-668 Apr 16, 2026

Exposure of Resource to Wrong Sphere in AMD AMD EPYC™ 9004 Series Processors

Incorrect use of boot service in the AMD Platform Configuration Blob (APCB) SMM driver could allow a privileged attacker with local access (Ring 0) to achieve privilege escalation potentially resulting in arbitrary code execution.

CVE-2025-52536 Medium · 6.7 CWE-1231 Feb 10, 2026

Improper Prevention of Lock Bit Modification in SEV firmware could allow a privileged…

Improper Prevention of Lock Bit Modification in SEV firmware could allow a privileged attacker to downgrade firmware potentially resulting in a loss of integrity.

CVE-2025-48514 Medium · 4.0 CWE-1220 Feb 10, 2026

Insufficient Granularity of Access Control in SEV firmware can allow a privileged…

Insufficient Granularity of Access Control in SEV firmware can allow a privileged attacker to create a SEV-ES Guest to attack SNP guest, potentially resulting in a loss of confidentiality.

CVE-2025-48509 Low · 1.8 CWE-665 Feb 10, 2026

Improper Initialization in AMD AMD EPYC™ 9004 Series Processors

Missing Checks in certain functions related to RMP initialization can allow a local admin privileged attacker to cause misidentification of I/O memory, potentially resulting in a loss of guest memory integrity

CVE-2025-29950 High · 7.1 CWE-1274 Feb 10, 2026

Improper input validation in system management mode (SMM) could allow a privileged…

Improper input validation in system management mode (SMM) could allow a privileged attacker to overwrite stack memory leading to arbitrary code execution.

CVE-2025-29939 Medium · 6.9 CWE-284 Feb 10, 2026

Improper Access Control in AMD AMD EPYC™ 9004 Series Processors

Improper access control in secure encrypted virtualization (SEV) could allow a privileged attacker to write to the reverse map page (RMP) during secure nested paging (SNP) initialization, potentially resulting in a loss of guest memory confidentiality and integrity.

CVE-2024-36355 High · 7.0 CWE-787 Feb 10, 2026

Out-of-bounds Write in AMD AMD EPYC™ 9004 Series Processors

Improper input validation in the SMM handler could allow an attacker with Ring0 access to write to SMRAM and modify execution flow for S3 (sleep) wake up, potentially resulting in arbitrary code execution.

CVE-2024-36310 Medium · 4.6 CWE-124 Feb 10, 2026

Improper input validation in the SMM communications buffer could allow a privileged…

Improper input validation in the SMM communications buffer could allow a privileged attacker to perform an out of bounds read or write to SMRAM potentially resulting in loss of confidentiality or integrity.

CVE-2025-29934 Medium · 5.3 CWE-459 Nov 21, 2025

A bug within some AMD CPUs could allow a local admin-privileged attacker to run a…

A bug within some AMD CPUs could allow a local admin-privileged attacker to run a SEV-SNP guest using stale TLB entries, potentially resulting in loss of data integrity.