Amd Epyc 7473x Firmware — known CVE vulnerabilities

Every CVE whose affected-product data names Amd Epyc 7473x Firmware, ordered by CVSS severity, with EPSS exploit prediction and CISA KEV status.

CVEs (55)

• CVE-2021-26379 — CVSS 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…
• CVE-2023-20520 — CVSS 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…
• CVE-2021-46756 — CVSS 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…
• CVE-2021-46769 — CVSS 8.8 (high): Insufficient syscall input validation in the ASP Bootloader may allow a privileged attacker to execute arbitrary DMA copies, which can lead…
• CVE-2024-21980 — CVSS 7.9 (high): Improper restriction of write operations in SNP firmware could allow a malicious hypervisor to potentially overwrite a guest's memory or…
• CVE-2021-26324 — CVSS 7.8 (high): A bug with the SEV-ES TMR may lead to a potential loss of memory integrity for SNP-active VMs.
• CVE-2021-46771 — CVSS 7.8 (high): Insufficient validation of addresses in AMD Secure Processor (ASP) firmware system call may potentially lead to arbitrary code execution by…
• CVE-2021-26353 — CVSS 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…
• CVE-2021-46764 — CVSS 7.5 (high): Improper validation of DRAM addresses in SMU may allow an attacker to overwrite sensitive memory locations within the ASP potentially…
• CVE-2021-46763 — CVSS 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…
• CVE-2023-20578 — CVSS 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…
• CVE-2023-20524 — CVSS 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…
• CVE-2022-23818 — CVSS 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.
• CVE-2021-26356 — CVSS 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…
• CVE-2021-26344 — CVSS 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…
• CVE-2021-26397 — CVSS 7.1 (high): Insufficient address validation, may allow an attacker with a compromised ABL and UApp to corrupt sensitive memory locations potentially…
• CVE-2021-26370 — CVSS 7.1 (high): Improper validation of destination address in SVC_LOAD_FW_IMAGE_BY_INSTANCE and SVC_LOAD_BINARY_BY_ATTRIB in a malicious UApp or ABL may…
• CVE-2021-26332 — CVSS 7.1 (high): Failure to verify SEV-ES TMR is not in MMIO space, SEV-ES FW could result in a potential loss of integrity or availability.
• CVE-2021-46775 — CVSS 6.8 (medium): Improper input validation in ABL may enable an attacker with physical access, to perform arbitrary memory overwrites, potentially leading…
• CVE-2021-46774 — CVSS 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…
• CVE-2023-20591 — CVSS 6.5 (medium): Improper re-initialization of IOMMU during the DRTM event may permit an untrusted platform configuration to persist, allowing an attacker…
• CVE-2023-20575 — CVSS 6.5 (medium): A potential power side-channel vulnerability in some AMD processors may allow an authenticated attacker to use the power reporting…
• CVE-2023-20592 — CVSS 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…
• CVE-2023-20533 — CVSS 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…
• CVE-2023-31346 — CVSS 6.0 (medium): Failure to initialize memory in SEV Firmware may allow a privileged attacker to access stale data from other guests.
• CVE-2024-21978 — CVSS 6.0 (medium): Improper input validation in SEV-SNP could allow a malicious hypervisor to read or overwrite guest memory potentially leading to data…
• CVE-2023-31355 — CVSS 6.0 (medium): Improper restriction of write operations in SNP firmware could allow a malicious hypervisor to overwrite a guest's UMC seed potentially…
• CVE-2021-46778 — CVSS 5.6 (medium): Execution unit scheduler contention may lead to a side channel vulnerability found on AMD CPU microarchitectures codenamed “Zen 1”…
• CVE-2021-26404 — CVSS 5.5 (medium): Improper input validation and bounds checking in SEV firmware may leak scratch buffer bytes leading to potential information disclosure.
• CVE-2021-26371 — CVSS 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…
• CVE-2021-26372 — CVSS 5.5 (medium): Insufficient bound checks related to PCIE in the System Management Unit (SMU) may result in access to an invalid address space that could…
• CVE-2021-26373 — CVSS 5.5 (medium): Insufficient bound checks in the System Management Unit (SMU) may result in a system voltage malfunction that could result in denial of…
• CVE-2021-26375 — CVSS 5.5 (medium): Insufficient General Purpose IO (GPIO) bounds check in System Management Unit (SMU) may result in access/updates from/to invalid address…
• CVE-2021-26376 — CVSS 5.5 (medium): Insufficient checks in System Management Unit (SMU) FeatureConfig may result in reenabling features potentially resulting in denial of…
• CVE-2021-26378 — CVSS 5.5 (medium): Insufficient bound checks in the System Management Unit (SMU) may result in access to an invalid address space that could result in denial…
• CVE-2021-26364 — CVSS 5.5 (medium): Insufficient bounds checking in an SMU mailbox register could allow an attacker to potentially read outside of the SRAM address range which…
• CVE-2021-26388 — CVSS 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…
• CVE-2021-26354 — CVSS 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…
• CVE-2021-26349 — CVSS 5.5 (medium): Failure to assign a new report ID to an imported guest may potentially result in an SEV-SNP guest VM being tricked into trusting a…
• CVE-2021-26348 — CVSS 5.5 (medium): Failure to flush the Translation Lookaside Buffer (TLB) of the I/O memory management unit (IOMMU) may lead an IO device to write to memory…
• CVE-2022-23824 — CVSS 5.5 (medium): IBPB may not prevent return branch predictions from being specified by pre-IBPB branch targets leading to a potential information…
• CVE-2021-26339 — CVSS 5.5 (medium): A bug in AMD CPU’s core logic may allow for an attacker, using specific code from an unprivileged VM, to trigger a CPU core hang…
• CVE-2023-20566 — CVSS 5.3 (medium): Improper address validation in ASP with SNP enabled may potentially allow an attacker to compromise guest memory integrity.
• CVE-2023-20584 — CVSS 5.3 (medium): IOMMU improperly handles certain special address ranges with invalid device table entries (DTEs), which may allow an attacker with…
• CVE-2023-31347 — CVSS 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…
• CVE-2023-20569 — CVSS 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…
• CVE-2021-26350 — CVSS 4.7 (medium): A TOCTOU race condition in SMU may allow for the caller to obtain and manipulate the address of a message port register which may result in…
• CVE-2021-26347 — CVSS 4.7 (medium): Failure to validate the integer operand in ASP (AMD Secure Processor) bootloader may allow an attacker to introduce an integer overflow in…
• CVE-2021-46762 — CVSS 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…
• CVE-2023-20521 — CVSS 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…
• CVE-2021-26342 — CVSS 3.3 (low): In SEV guest VMs, the CPU may fail to flush the Translation Lookaside Buffer (TLB) following a particular sequence of operations that…
• CVE-2023-20573 — CVSS 3.2 (low): A privileged attacker can prevent delivery of debug exceptions to SEV-SNP guests potentially resulting in guests not receiving expected…
• CVE-2021-26345 — CVSS 1.9 (low): 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…
• CVE-2022-23830 — CVSS 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.
• CVE-2023-20526 — CVSS 1.9 (low): Insufficient input validation in the ASP Bootloader may enable a privileged attacker with physical access to expose the contents of ASP…