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CVE
added 2022/05/11 5:15 p.m.138 views

CVE-2021-26339

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 resulting in a potential denial of service. AMD believes the specific code includes a specific x86 instruction sequence that would not be generated by compilers.

5.5CVSS5.9AI score0.00071EPSS
CVE
CVE
added 2022/05/11 5:15 p.m.127 views

CVE-2021-26342

In SEV guest VMs, the CPU may fail to flush the Translation Lookaside Buffer (TLB) following a particular sequence of operations that includes creation of a new virtual machine control block (VMCB). The failure to flush the TLB may cause the microcode to use stale TLB translations which may allow f...

3.3CVSS5AI score0.00075EPSS
CVE
CVE
added 2022/05/11 5:15 p.m.115 views

CVE-2021-26350

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 a potential denial of service.

4.7CVSS5.3AI score0.0005EPSS
CVE
CVE
added 2022/05/11 5:15 p.m.111 views

CVE-2021-26372

Insufficient bound checks related to PCIE in the System Management Unit (SMU) may result in access to an invalid address space that could result in denial of service.

5.5CVSS5.8AI score0.00069EPSS
CVE
CVE
added 2022/05/11 5:15 p.m.110 views

CVE-2021-26376

Insufficient checks in System Management Unit (SMU) FeatureConfig may result in reenabling features potentially resulting in denial of resources and/or denial of service.

5.5CVSS5.9AI score0.00061EPSS
CVE
CVE
added 2022/05/11 5:15 p.m.103 views

CVE-2021-26347

Failure to validate the integer operand in ASP (AMD Secure Processor) bootloader may allow an attacker to introduce an integer overflow in the L2 directory table in SPI flash resulting in a potential denial of service.

4.7CVSS5.5AI score0.00034EPSS
CVE
CVE
added 2022/05/11 5:15 p.m.91 views

CVE-2021-26388

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.

5.5CVSS5.8AI score0.00045EPSS
CVE
CVE
added 2022/05/11 5:15 p.m.90 views

CVE-2021-26348

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 it should not be able to access, resulting in a potential loss of integrity.

5.5CVSS5.8AI score0.00073EPSS
CVE
CVE
added 2022/05/11 5:15 p.m.90 views

CVE-2021-26375

Insufficient General Purpose IO (GPIO) bounds check in System Management Unit (SMU) may result in access/updates from/to invalid address space that could result in denial of service.

5.5CVSS5.8AI score0.00063EPSS
CVE
CVE
added 2022/05/10 7:15 p.m.86 views

CVE-2021-26324

A bug with the SEV-ES TMR may lead to a potential loss of memory integrity for SNP-active VMs.

7.8CVSS7.5AI score0.00044EPSS
CVE
CVE
added 2022/05/11 5:15 p.m.86 views

CVE-2021-26378

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.

5.5CVSS5.8AI score0.00069EPSS
CVE
CVE
added 2022/05/11 5:15 p.m.85 views

CVE-2021-26364

Insufficient bounds checking in an SMU mailbox register could allow an attacker to potentially read outside of the SRAM address range which could result in an exception handling leading to a potential denial of service.

5.5CVSS5.7AI score0.00055EPSS
CVE
CVE
added 2022/05/11 5:15 p.m.83 views

CVE-2021-26349

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 dishonest Migration Agent (MA).

5.5CVSS5.8AI score0.0006EPSS
CVE
CVE
added 2022/05/11 5:15 p.m.83 views

CVE-2021-26373

Insufficient bound checks in the System Management Unit (SMU) may result in a system voltage malfunction that could result in denial of resources and/or possibly denial of service.

5.5CVSS5.9AI score0.00069EPSS
CVE
CVE
added 2022/05/10 7:15 p.m.80 views

CVE-2021-26353

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.

7.8CVSS7.7AI score0.00106EPSS
CVE
CVE
added 2022/05/10 7:15 p.m.78 views

CVE-2021-26370

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 allow an attacker to overwrite arbitrary bootloader memory with SPI ROM contents resulting in a loss of integrity and availability.

7.1CVSS7.1AI score0.00126EPSS
CVE
CVE
added 2022/05/10 7:15 p.m.71 views

CVE-2021-46771

Insufficient validation of addresses in AMD Secure Processor (ASP) firmware system call may potentially lead to arbitrary code execution by a compromised user application.

7.8CVSS7.8AI score0.00104EPSS
CVE
CVE
added 2022/05/10 7:15 p.m.65 views

CVE-2021-26332

Failure to verify SEV-ES TMR is not in MMIO space, SEV-ES FW could result in a potential loss of integrity or availability.

7.1CVSS7AI score0.00044EPSS
CVE
CVE
added 2022/02/04 11:15 p.m.64 views

CVE-2020-12966

AMD EPYC™ Processors contain an information disclosure vulnerability in the Secure Encrypted Virtualization with Encrypted State (SEV-ES) and Secure Encrypted Virtualization with Secure Nested Paging (SEV-SNP). A local authenticated attacker could potentially exploit this vulnerability leading to l...

5.5CVSS5AI score0.00062EPSS