Total
55 CVE
| CVE | Vendors | Products | Updated | CVSS v2 | CVSS v3 |
|---|---|---|---|---|---|
| CVE-2021-26353 | 1 Amd | 46 Epyc 72f3, Epyc 72f3 Firmware, Epyc 7313 and 43 more | 2026-02-24 | 7.2 HIGH | 7.8 HIGH |
|
Failure to validate inputs in SMM may allow an attacker to create a mishandled error leaving the DRTM UApp in a partially initialized state potentially resulting in loss of memory integrity.
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| CVE-2023-20573 | 1 Amd | 130 Epyc 7203, Epyc 7203 Firmware, Epyc 7203p and 127 more | 2025-06-20 | N/A | 3.2 LOW |
|
A privileged attacker
can prevent delivery of debug exceptions to SEV-SNP guests potentially
resulting in guests not receiving expected debug information.
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| CVE-2021-26404 | 1 Amd | 46 Epyc 7003, Epyc 7003 Firmware, Epyc 7313 and 43 more | 2025-04-08 | N/A | 5.5 MEDIUM |
|
Improper input validation and bounds checking in SEV firmware may leak scratch buffer bytes leading to potential information disclosure.
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| CVE-2023-31346 | 1 Amd | 123 Epyc 7203 Firmware, Epyc 7203p, Epyc 7203p Firmware and 120 more | 2025-03-20 | N/A | 6.0 MEDIUM |
|
Failure to initialize
memory in SEV Firmware may allow a privileged attacker to access stale data
from other guests.
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| CVE-2023-20578 | 1 Amd | 210 Epyc 7001, Epyc 7001 Firmware, Epyc 7203 and 207 more | 2025-03-18 | N/A | 7.5 HIGH |
|
A TOCTOU (Time-Of-Check-Time-Of-Use) in SMM may allow
an attacker with ring0 privileges and access to the
BIOS menu or UEFI shell to modify the communications buffer potentially
resulting in arbitrary code execution.
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| CVE-2021-26344 | 1 Amd | 138 Epyc 7001, Epyc 7001 Firmware, Epyc 7203 and 135 more | 2025-03-18 | N/A | 7.2 HIGH |
|
An out of bounds memory write when processing the AMD
PSP1 Configuration Block (APCB) could allow an attacker with access the ability
to modify the BIOS image, and the ability to sign the resulting image, to
potentially modify the APCB block resulting in arbitrary code execution.
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| CVE-2023-31347 | 1 Amd | 123 Epyc 7203 Firmware, Epyc 7203p, Epyc 7203p Firmware and 120 more | 2025-03-17 | N/A | 4.9 MEDIUM |
|
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 enabled potentially
resulting in a loss of guest integrity.
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| CVE-2023-20591 | 1 Amd | 130 Epyc 7203, Epyc 7203 Firmware, Epyc 7203p and 127 more | 2025-03-13 | N/A | 6.5 MEDIUM |
|
Improper re-initialization of IOMMU during the DRTM event
may permit an untrusted platform configuration to persist, allowing an attacker
to read or modify hypervisor memory, potentially resulting in loss of
confidentiality, integrity, and availability.
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| CVE-2023-20524 | 1 Amd | 96 Epyc 7232p, Epyc 7232p Firmware, Epyc 7252 and 93 more | 2025-01-28 | N/A | 7.5 HIGH |
|
An attacker with a compromised ASP could
possibly send malformed commands to an ASP on another CPU, resulting in an out
of bounds write, potentially leading to a loss a loss of integrity.
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| CVE-2023-20520 | 1 Amd | 126 Epyc 7232p, Epyc 7232p Firmware, Epyc 7251 and 123 more | 2025-01-28 | N/A | 9.8 CRITICAL |
|
Improper access control settings in ASP
Bootloader may allow an attacker to corrupt the return address causing a
stack-based buffer overrun potentially leading to arbitrary code execution.
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| CVE-2022-23818 | 1 Amd | 46 Epyc 72f3, Epyc 72f3 Firmware, Epyc 7313 and 43 more | 2025-01-28 | N/A | 7.5 HIGH |
|
Insufficient input validation on the model
specific register: VM_HSAVE_PA may potentially lead to loss of SEV-SNP guest
memory integrity.
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| CVE-2021-46775 | 1 Amd | 96 Epyc 7232p, Epyc 7232p Firmware, Epyc 7252 and 93 more | 2025-01-28 | N/A | 6.8 MEDIUM |
|
Improper input validation in ABL may enable an
attacker with physical access, to perform arbitrary memory overwrites,
potentially leading to a loss of integrity and code execution.
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| CVE-2021-46769 | 1 Amd | 96 Epyc 7232p, Epyc 7232p Firmware, Epyc 7252 and 93 more | 2025-01-28 | N/A | 8.8 HIGH |
|
Insufficient syscall input validation in the ASP
Bootloader may allow a privileged attacker to execute arbitrary DMA copies,
which can lead to code execution.
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| CVE-2021-46764 | 1 Amd | 96 Epyc 7232p, Epyc 7232p Firmware, Epyc 7252 and 93 more | 2025-01-28 | N/A | 7.5 HIGH |
|
Improper validation of DRAM addresses in SMU may
allow an attacker to overwrite sensitive memory locations within the ASP
potentially resulting in a denial of service.
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| CVE-2021-46763 | 1 Amd | 96 Epyc 7232p, Epyc 7232p Firmware, Epyc 7252 and 93 more | 2025-01-28 | N/A | 7.5 HIGH |
|
Insufficient input validation in the SMU may
enable a privileged attacker to write beyond the intended bounds of a shared
memory buffer potentially leading to a loss of integrity.
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| CVE-2021-46756 | 1 Amd | 126 Epyc 7232p, Epyc 7232p Firmware, Epyc 7251 and 123 more | 2025-01-28 | N/A | 9.1 CRITICAL |
|
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 send malformed or invalid syscall to
the bootloader resulting in a potential denial of service and loss of
integrity.
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| CVE-2021-26397 | 1 Amd | 46 Epyc 72f3, Epyc 72f3 Firmware, Epyc 7313 and 43 more | 2025-01-28 | N/A | 7.1 HIGH |
|
Insufficient address validation, may allow an
attacker with a compromised ABL and UApp to corrupt sensitive memory locations
potentially resulting in a loss of integrity or availability.
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| CVE-2021-26379 | 1 Amd | 96 Epyc 7232p, Epyc 7232p Firmware, Epyc 7252 and 93 more | 2025-01-28 | N/A | 9.8 CRITICAL |
|
Insufficient input validation of mailbox data in the
SMU may allow an attacker to coerce the SMU to corrupt SMRAM, potentially
leading to a loss of integrity and privilege escalation.
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| CVE-2021-26371 | 1 Amd | 256 Amd 3015ce, Amd 3015ce Firmware, Amd 3015e and 253 more | 2025-01-28 | N/A | 5.5 MEDIUM |
|
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 leading to information disclosure.
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| CVE-2021-26356 | 1 Amd | 196 Epyc 7001, Epyc 7001 Firmware, Epyc 7002 and 193 more | 2025-01-28 | N/A | 7.4 HIGH |
|
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 information disclosure.
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| CVE-2021-26354 | 1 Amd | 304 Amd 3015ce, Amd 3015ce Firmware, Amd 3015e and 301 more | 2025-01-28 | N/A | 5.5 MEDIUM |
|
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 initialized to zero, potentially leading to a
loss of integrity.
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| CVE-2023-20584 | 1 Amd | 130 Epyc 7203, Epyc 7203 Firmware, Epyc 7203p and 127 more | 2024-12-12 | N/A | 5.3 MEDIUM |
|
IOMMU improperly handles certain special address
ranges with invalid device table entries (DTEs), which may allow an attacker
with privileges and a compromised Hypervisor to
induce DTE faults to bypass RMP checks in SEV-SNP, potentially leading to a
loss of guest integrity.
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| CVE-2023-20575 | 1 Amd | 176 Epyc 5552, Epyc 5552 Firmware, Epyc 7232p and 173 more | 2024-11-27 | N/A | 6.5 MEDIUM |
|
A potential power side-channel vulnerability in some AMD processors may allow an authenticated attacker to use the power reporting functionality to monitor a program’s execution inside an AMD SEV VM potentially resulting in a leak of sensitive information.
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| CVE-2024-21980 | 1 Amd | 172 Epyc 7203, Epyc 7203 Firmware, Epyc 7203p and 169 more | 2024-11-26 | N/A | 7.9 HIGH |
|
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 loss of confidentiality and integrity.
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| CVE-2024-21978 | 1 Amd | 172 Epyc 7203, Epyc 7203 Firmware, Epyc 7203p and 169 more | 2024-11-26 | N/A | 6.0 MEDIUM |
|
Improper input validation in SEV-SNP could allow a malicious hypervisor to read or overwrite guest memory potentially leading to data leakage or data corruption.
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| CVE-2023-31355 | 1 Amd | 172 Epyc 7203, Epyc 7203 Firmware, Epyc 7203p and 169 more | 2024-11-26 | N/A | 6.0 MEDIUM |
|
Improper restriction of write operations in SNP firmware could allow a malicious hypervisor to overwrite a guest's UMC seed potentially allowing reading of memory from a decommissioned guest.
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| CVE-2023-20592 | 1 Amd | 138 Epyc 7001, Epyc 7001 Firmware, Epyc 7203 and 135 more | 2024-11-21 | N/A | 6.5 MEDIUM |
|
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 behavior of the CPU leading to a potential loss of guest virtual machine (VM) memory integrity.
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| CVE-2023-20569 | 4 Amd, Debian, Fedoraproject and 1 more | 296 Epyc 72f3, Epyc 72f3 Firmware, Epyc 7313 and 293 more | 2024-11-21 | N/A | 4.7 MEDIUM |
|
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 execution at an attacker-controlled address, potentially leading to information disclosure.
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| CVE-2023-20566 | 1 Amd | 130 Epyc 7203, Epyc 7203 Firmware, Epyc 7203p and 127 more | 2024-11-21 | N/A | 5.3 MEDIUM |
|
Improper address validation in ASP with SNP enabled may potentially allow an attacker to compromise guest memory integrity.
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| CVE-2023-20533 | 1 Amd | 170 Epyc 7203, Epyc 7203 Firmware, Epyc 7203p and 167 more | 2024-11-21 | N/A | 6.1 MEDIUM |
|
Insufficient DRAM address validation in System
Management Unit (SMU) may allow an attacker to read/write from/to an invalid
DRAM address, potentially resulting in denial-of-service.
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| CVE-2023-20526 | 1 Amd | 146 Epyc 7001, Epyc 7001 Firmware, Epyc 7203 and 143 more | 2024-11-21 | N/A | 1.9 LOW |
|
Insufficient input validation in the ASP Bootloader may enable a privileged attacker with physical access to expose the contents of ASP memory potentially leading to a loss of confidentiality.
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| CVE-2023-20521 | 1 Amd | 186 Amd 3015ce, Amd 3015ce Firmware, Amd 3015e and 183 more | 2024-11-21 | N/A | 3.3 LOW |
|
TOCTOU in the ASP Bootloader may allow an attacker with physical access to tamper with SPI ROM records after memory content verification, potentially leading to loss of confidentiality or a denial of service.
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| CVE-2022-23830 | 1 Amd | 130 Epyc 7203, Epyc 7203 Firmware, Epyc 7203p and 127 more | 2024-11-21 | N/A | 1.9 LOW |
|
SMM configuration may not be immutable, as intended, when SNP is enabled resulting in a potential limited loss of guest memory integrity.
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| CVE-2022-23824 | 3 Amd, Fedoraproject, Xen | 336 A10-9600p, A10-9600p Firmware, A10-9630p and 333 more | 2024-11-21 | N/A | 5.5 MEDIUM |
|
IBPB may not prevent return branch predictions from being specified by pre-IBPB branch targets leading to a potential information disclosure.
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| CVE-2021-46778 | 1 Amd | 358 Athlon 3050ge, Athlon 3050ge Firmware, Athlon 3150g and 355 more | 2024-11-21 | N/A | 5.6 MEDIUM |
|
Execution unit scheduler contention may lead to a side channel vulnerability found on AMD CPU microarchitectures codenamed “Zen 1”, “Zen 2” and “Zen 3” that use simultaneous multithreading (SMT). By measuring the contention level on scheduler queues an attacker may potentially leak sensitive information.
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| CVE-2021-46774 | 1 Amd | 274 Epyc 7001, Epyc 7001 Firmware, Epyc 7203 and 271 more | 2024-11-21 | N/A | 6.7 MEDIUM |
|
Insufficient DRAM address validation in System
Management Unit (SMU) may allow an attacker to read/write from/to an invalid
DRAM address, potentially resulting in denial-of-service.
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| CVE-2021-46771 | 1 Amd | 46 Epyc 72f3, Epyc 72f3 Firmware, Epyc 7313 and 43 more | 2024-11-21 | 7.2 HIGH | 7.8 HIGH |
|
Insufficient validation of addresses in AMD Secure Processor (ASP) firmware system call may potentially lead to arbitrary code execution by a compromised user application.
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| CVE-2021-46762 | 1 Amd | 96 Epyc 7232p, Epyc 7232p Firmware, Epyc 7252 and 93 more | 2024-11-21 | N/A | 3.9 LOW |
|
Insufficient input validation in the SMU may
allow an attacker to corrupt SMU SRAM potentially leading to a loss of
integrity or denial of service.
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| CVE-2021-26388 | 1 Amd | 213 Epyc 7232p, Epyc 7232p Firmware, Epyc 7252 and 210 more | 2024-11-21 | 4.9 MEDIUM | 5.5 MEDIUM |
|
Improper validation of the BIOS directory may allow for searches to read beyond the directory table copy in RAM, exposing out of bounds memory contents, resulting in a potential denial of service.
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| CVE-2021-26378 | 1 Amd | 167 Epyc 7232p, Epyc 7232p Firmware, Epyc 7252 and 164 more | 2024-11-21 | 4.9 MEDIUM | 5.5 MEDIUM |
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Insufficient bound checks in the System Management Unit (SMU) may result in access to an invalid address space that could result in denial of service.
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