AMD Epyc 9004 Processors vulnerabilities

9 CVEs affecting AMD Epyc 9004 Processors, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2023-31345, published 2025-02-12.

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Known exploited (CISA KEV) first, then by EPSS exploit probability.

• CVE-2023-31356, published 2024-08-13. Medium severity, CVSS 4.4. EPSS: 0.2% chance of exploitation in the next 30 days. Incomplete system memory cleanup in SEV firmware could allow a privileged attacker to corrupt guest private memory, potentially resulting in a loss of data integrity.
• CVE-2024-21925, published 2025-02-11. High severity, CVSS 8.2. EPSS: 0.2% chance of exploitation in the next 30 days. Improper input validation within the AmdPspP2CmboxV2 driver may allow a privileged attacker to overwrite SMRAM, leading to arbitrary code execution.
• CVE-2023-31345, published 2025-02-12. High severity, CVSS 7.5. EPSS: 0.2% chance of exploitation in the next 30 days. Improper input validation in the SMM handler may allow a privileged attacker to overwrite SMRAM, potentially leading to arbitrary code execution.
• CVE-2023-31343, published 2025-02-11. High severity, CVSS 7.5. EPSS: 0.2% chance of exploitation in the next 30 days. Improper input validation in the SMM handler may allow a privileged attacker to overwrite SMRAM, potentially leading to arbitrary code execution.
• CVE-2023-31342, published 2025-02-11. High severity, CVSS 7.5. EPSS: 0.2% chance of exploitation in the next 30 days. Improper input validation in the SMM handler may allow a privileged attacker to overwrite SMRAM, potentially leading to arbitrary code execution.
• CVE-2023-31352, published 2025-02-11. Medium severity, CVSS 6.0. EPSS: 0.2% chance of exploitation in the next 30 days. A bug in the SEV firmware may allow an attacker with privileges to read unencrypted memory, potentially resulting in loss of guest private data.
• CVE-2023-20582, published 2025-02-11. Medium severity, CVSS 5.3. EPSS: 0.2% chance of exploitation in the next 30 days. Improper handling of invalid nested page table entries in the IOMMU may allow a privileged attacker to induce page table entry (PTE) faults to bypass RMP checks in SEV-SNP, potentially leading to a…
• CVE-2023-20581, published 2025-02-11. Low severity, CVSS 2.5. EPSS: 0.2% chance of exploitation in the next 30 days. Improper access control in the IOMMU may allow a privileged attacker to bypass RMP checks, potentially leading to a loss of guest memory integrity.
• CVE-2021-46746, published 2024-08-13. Medium severity, CVSS 5.2. EPSS: 0.2% chance of exploitation in the next 30 days. Lack of stack protection exploit mechanisms in ASP Secure OS Trusted Execution Environment (TEE) may allow a privileged attacker with access to AMD signing keys to c006Frrupt the return address,…