3rd Gen Amd Epyc Processors (Amd) - vulnerabilities (CVEs)

27 CVEs, 0 in the last 30 days, 4 known versions, newest CVE from 2026-09-02. Vendor: Amd.

CVEs of 3rd Gen Amd Epyc Processors

• CVE-2023-20577 - CVSS 7.4 (high), 2026-09-02: A heap overflow in SMM module may allow an attacker with access to a second vulnerability that enables writing to SPI flash, potentially resulting in…
• CVE-2023-31315 - CVSS 7.5 (high), 2024-08-12: Improper validation in a model specific register (MSR) could allow a malicious program with ring0 access to modify SMM configuration while SMI lock is…
• CVE-2024-21980 - CVSS 7.9 (high), 2024-08-05: Improper restriction of write operations in SNP firmware could allow a malicious hypervisor to potentially overwrite a guest's memory or UMC seed resulting in…
• CVE-2024-21978 - CVSS 7.9 (high), 2024-08-05: Improper input validation in SEV-SNP could allow a malicious hypervisor to read or overwrite guest memory potentially leading to data leakage or data…
• CVE-2023-31355 - CVSS 6 (medium), 2024-08-05: Improper restriction of write operations in SNP firmware could allow a malicious hypervisor to overwrite a guest's UMC seed potentially allowing reading of…
• CVE-2022-23829 - CVSS 8.2 (high), 2024-06-18: A potential weakness in AMD SPI protection features may allow a malicious attacker with Ring0 (kernel mode) access to bypass the native System Management Mode…
• CVE-2023-20587 - CVSS 7.1 (high), 2024-02-13: Improper Access Control in System Management Mode (SMM) may allow an attacker access to the SPI flash potentially leading to arbitrary code execution.
• CVE-2023-31347 - CVSS 4.9 (medium), 2024-02-13: Due to a code bug in Secure_TSC, SEV firmware may allow an attacker with high privileges to cause a guest to observe an incorrect TSC when Secure TSC is…
• CVE-2023-31346 - CVSS 6 (medium), 2024-02-13: Failure to initialize memory in SEV Firmware may allow a privileged attacker to access stale data from other guests.
• CVE-2023-20573 - CVSS 3.2 (low), 2024-01-11: A privileged attacker can prevent delivery of debug exceptions to SEV-SNP guests potentially resulting in guests not receiving expected debug information.
• CVE-2023-20592 - CVSS 6.5 (medium), 2023-11-14: Improper or unexpected behavior of the INVD instruction in some AMD CPUs may allow an attacker with a malicious hypervisor to affect cache line write-back…
• CVE-2023-20521 - CVSS 5.7 (medium), 2023-11-14: TOCTOU in the ASP Bootloader may allow an attacker with physical access to tamper with SPI ROM records after memory content verification, potentially leading…
• CVE-2023-20566 - CVSS 7.5 (high), 2023-11-14: Improper address validation in ASP with SNP enabled may potentially allow an attacker to compromise guest memory integrity.
• CVE-2023-20519 - CVSS 3.3 (low), 2023-11-14: A Use-After-Free vulnerability in the management of an SNP guest context page may allow a malicious hypervisor to masquerade as the guest's migration agent…
• CVE-2023-20533 - CVSS 7.5 (high), 2023-11-14: Insufficient DRAM address validation in System Management Unit (SMU) may allow an attacker to read/write from/to an invalid DRAM address, potentially…
• CVE-2023-20526 - CVSS 4.6 (medium), 2023-11-14: Insufficient input validation in the ASP Bootloader may enable a privileged attacker with physical access to expose the contents of ASP memory potentially…
• CVE-2021-46774 - CVSS 7.5 (high), 2023-11-14: Insufficient DRAM address validation in System Management Unit (SMU) may allow an attacker to read/write from/to an invalid DRAM address, potentially…
• CVE-2021-26345 - CVSS 4.9 (medium), 2023-11-14: Failure to validate the value in APCB may allow a privileged attacker to tamper with the APCB token to force an out-of-bounds memory read potentially…
• CVE-2022-23830 - CVSS 5.3 (medium), 2023-11-14: SMM configuration may not be immutable, as intended, when SNP is enabled resulting in a potential limited loss of guest memory integrity.
• CVE-2022-23820 - CVSS 9.8 (critical), 2023-11-14: Failure to validate the AMD SMM communication buffer may allow an attacker to corrupt the SMRAM potentially leading to arbitrary code execution.
• CVE-2023-20594 - CVSS 4.4 (medium), 2023-09-20: Improper initialization of variables in the DXE driver may allow a privileged user to leak sensitive information via local access.
• CVE-2023-20569 - CVSS 4.7 (medium), 2023-08-08: A side channel vulnerability on some of the AMD CPUs may allow an attacker to influence the return address prediction. This may result in speculative…
• CVE-2023-20575 - CVSS 6.5 (medium), 2023-07-11: A potential power side-channel vulnerability in some AMD processors may allow an authenticated attacker to use the power reporting functionality to monitor a…
• CVE-2021-46756 - CVSS 9.1 (critical), 2023-05-09: Insufficient validation of inputs in SVC_MAP_USER_STACK in the ASP (AMD Secure Processor) bootloader may allow an attacker with a malicious Uapp or ABL to…
• CVE-2021-26371 - CVSS 5.5 (medium), 2023-05-09: A compromised or malicious ABL or UApp could send a SHA256 system call to the bootloader, which may result in exposure of ASP memory to userspace, potentially…
• CVE-2021-26356 - CVSS 7.4 (high), 2023-05-09: A TOCTOU in ASP bootloader may allow an attacker to tamper with the SPI ROM following data read to memory potentially resulting in S3 data corruption and…
• CVE-2021-26354 - CVSS 5.5 (medium), 2023-05-09: Insufficient bounds checking in ASP may allow an attacker to issue a system call from a compromised ABL which may cause arbitrary memory values to be…