CVE-2023-20569

CVE-2023-20569 concerns a side-channel vulnerability in some AMD CPUs where an attacker may influence the return-address predictor, enabling speculative execution at attacker-controlled addresses and potential information disclosure. The vulnerability is discussed across multiple connected source...

CVE-2021-26401

CVE-2021-26401 concerns Spectre Variant 2 mitigation on AMD CPUs. The description states that LFENCE/JMP mitigation (mitigation V2-2) may not sufficiently mitigate CVE-2017-5715 on some AMD processors. AMD advisories (AMD-SB-1040 and AMD-SB-1036) discuss mitigations and supported approaches: use ...

CVE-2021-26341

CVE-2021-26341 affects AMD CPUs; transient execution beyond unconditional direct branches may leak data. Public details describe local access risk with low NVD CVSS v2 but medium CVSS v3.1 (6.5) and local attack vector. Connected advisories (MiracleLinux, IBM/Red Hat and others) mention this CVE ...

CVE-2022-27672

CVE-2022-27672 describes a local information disclosure vulnerability on certain AMD CPUs where, when SMT is enabled, the processor may speculatively execute instructions using a target from the sibling thread after an SMT mode switch. The underlying issue is tied to speculative execution across ...

CVE-2022-23824

Summary: CVE-2022-23824 is listed as a Xen-related vulnerability in Debian security advisories and Gentoo GLSA, indicating multiple vulnerabilities in the Xen hypervisor that could lead to privilege escalation, denial of service, or information leaks. The Debian entry explicitly groups CVE-2022-2...

CVE-2022-23823

CVE-2022-23823 describes a timing-attack information disclosure risk on AMD processors with DVFS. Connected sources show F5 advisories (K43357358) tying Hertzbleed to BIG-IP on AMD CPUs, listing affected BIG-IP branches (e.g., 17.x up to 17.5.03) with “Will not fix” for some lines, and provide a ...

CVE-2021-26363

CVE-2021-26363 affects AMD ASP/SMU firmware where a malicious or compromised UApp or ABL could modify the ASP’s reserved DRAM value outside the fenced area, potentially exposing data. The vulnerability is documented in AMD SB-1027 with platform-specific mitigations (e.g., Raven Ridge AM4 family),...

CVE-2021-26339

Technical details are not publicly available in the provided documents for CVE-2021-26339. Monitor for updates from vendor advisories; no specific affected products, impact, or remediation details are present in the supplied materials.

CVE-2022-23821

CVE-2022-23821 describes an improper access control in AMD System Management Mode (SMM) that could allow an attacker to write to SPI ROM and potentially achieve arbitrary code execution. Connected sources indicate this affects AMD ASP/SMM components and is mitigated by Platform Initialization (PI...

CVE-2021-26316

CVE-2021-26316 describes a BIOS-level input/communication buffer validation flaw in AMD platforms that may allow a local attacker with low privileges to tamper BIOS buffers and trigger SMM (System Management Mode) arbitrary code execution. Connected sources confirm the root cause is inadequate va...

CVE-2021-26368

CVE-2021-26368 is an AMD firmware/Trusted OS issue where insufficient process-type checking can allow a less-privileged process to unmap memory owned by a higher-privileged process, causing denial of service. The AMD advisory (AMD-SB-1027) and related CVE table map this to multiple AMD Ryzen plat...

CVE-2021-26382

CVE-2021-26382 affects AMD ACP firmware image validation: an attacker with root privileges can load any legitimately signed firmware image into the Audio Co-Processor, bypassing key restrictions and potentially causing a denial of service. Affected platforms span AMD Ryzen desktop/mobile families...

CVE-2021-26366

CVE-2021-26366 is documented by AMD in AMD-SB-1027 as a vulnerability where an attacker with elevated privileges could read data from Boot ROM, compromising system integrity. The AMD bulletin lists CVE-2021-26366 under desktop/mobile/server SKUs and ties it to AGESA PI firmware fixes. Mitigation:...

CVE-2021-26388

CVE-2021-26388 matches the initial description: improper validation of the BIOS directory can cause reads beyond the RAM directory table, exposing out-of-bounds memory and potentially causing a denial of service. Connected advisories (SUSE-SU-2022:1840-1, 1846-1, 1847-1) reference this CVE as par...

CVE-2023-20558

CVE-2023-20558 involves AMD Secure Processor/SMU SMM code. The root cause is insufficient control flow management in AmdCpmOemSmm, which could allow a privileged attacker to tamper with the SMM handler and escalate privileges. Affected software/hardware: AMD Ryzen 2000 series desktop processors (...

CVE-2023-20579

CVE-2023-20579 involves improper access control in the AMD SPI protection feature. A local Ring0 (kernel mode) user could bypass protections, potentially affecting integrity and availability. Connected documents confirm this is an AMD SPI protection flaw and cite multiple advisories (NVD, Red Hat...

CVE-2021-26346

CVE-2021-26346 affects AMD Secure Processor (ASP) bootloader: failure to validate the integer operand can enable an integer overflow in the L2 directory table in SPI flash, leading to potential denial of service. Affected by several AMD/industry advisories; mitigation requires firmware/BIOS updat...

CVE-2021-26386

CVE-2021-26386 describes a vulnerability where a malicious or compromised UApp or ABL can issue a malformed system call to the Stage 2 Bootloader, potentially causing memory corruption and code execution. AMD’s AMD-SB-1027 bulletin lists this CVE among a set of AMD platform risks and maps it to a...

CVE-2021-26351

CVE-2021-26351 corresponds to an insufficient DRAM address validation vulnerability in the AMD System Management Unit (SMU), which may allow a DMA read/write to an invalid DRAM address and cause a denial of service. Connected AMD advisories (AMD-SB-1027) map this issue to AMD platforms across des...

CVE-2021-26317

CVE-2021-26317: The AMD SMM protocol verification failure allows an attacker to take control of the SMM protocol and modify SPI flash, potentially enabling arbitrary code execution. Public documentation ties this to AMD’s SMM/ASP/SEV family and lists it among AMD client vulnerabilities with a hig...

CVE-2021-26361

The CVE-2021-26361 vulnerability affects AMD ASP/AGESA Boot Loader where a malicious or compromised UApp or ABL could exfiltrate arbitrary memory from the ASP stage 2 bootloader, leading to information disclosure. The issue is tied to the boot firmware stack (AGESA PI) across multiple AMD platfor...

CVE-2021-26362

Summary: CVE-2021-26362 describes a vulnerability in AMD System Management Unit (SMU) where a malicious or compromised UApp/ABL can issue a malformed system call to map sensitive SMN registers, potentially compromising integrity and availability. The CVE is associated with AMD platforms and is mi...

CVE-2020-12930

CVE-2020-12930 is an AMD ASP/PSP driver vulnerability described as improper parameter handling that could allow a privileged attacker to elevate privileges, potentially compromising integrity. The AMD security bulletin AMD-SB-5001 maps this CVE to various AMD Embedded/ Ryzen platforms and provide...

CVE-2021-26384

CVE-2021-26384 is a vulnerability described as a malformed System Management Interface (SMI) command that can corrupt the SMI Trigger Info data structure, potentially enabling out-of-bounds memory reads/writes when an SMI is triggered. The AMD ADM/AMD-SB-1027 bulletin lists this CVE among others ...

CVE-2021-26369

CVE-2021-26369 : AMD systems vulnerable when a malicious or compromised UApp or ABL sends a malformed system call to the bootloader, causing out-of-bounds memory accesses in the AMD System Management Unit/boot path. The AMD bulletin AMD-SB-1027 aggregates this with multiple platform family mitiga...

CVE-2021-26393

CVE-2021-26393 describes insufficient memory cleanup in the AMD Secure Processor (ASP) TEE, which could allow an authenticated user with privileges to generate a valid signed TA and potentially poison process memory, leading to confidentiality loss. The connected AMD security bulletin (AMD-SB-500...

CVE-2023-20555

CVE-2023-20555 is an AMD SMM memory corruption flaw due to insufficient input validation in CpmDisplayFeatureSmm, allowing an attacker to overwrite an arbitrary bit in an attacker-controlled pointer and potentially execute code in SMM. Connected sources indicate this affects AMD processors with S...

CVE-2021-46778

CVE-2021-46778 describes an information-disclosure side-channel vulnerability in AMD CPUs with SMT (Zen 1–Zen 4). The root cause is execution unit scheduler contention on SMT-enabled cores, allowing an attacker to infer data by measuring scheduler-queue contention. Public documents identify affec...

CVE-2021-26354

CVE-2021-26354 affects AMD’s ASP/Bootloader pathway (ASP/ABL) with Insufficient bounds checking that may allow a system call from a compromised ABL, initializing arbitrary memory to zero and potentially compromising integrity. The vulnerability is documented across multiple sources (NVD entry and...

CVE-2020-12931

The CVE-2020-12931 issue affects the AMD Secure Processor (ASP) kernel, caused by improper parameter handling, enabling a privileged attacker to elevate privileges and potentially compromise integrity. AMD’s AMD-SB-5001 bulletin maps this vulnerability across ASP/PSP components (ASP kernel) and p...

CVE-2022-23820

CVE-2022-23820 corresponds to a vulnerability in AMD ASP/PSP/SMM handling where failure to validate the AMD SMM communication buffer could allow an attacker to corrupt SMRAM and achieve arbitrary code execution. Public details in AMD’s bulletin AMD-SB-5001 confirm the issue and map it to multiple...

CVE-2023-20571

CVE-2023-20571 describes a race condition in AMD System Management Mode (SMM) code that, if exploited by a compromised user-space process, could facilitate privilege escalation by leveraging CVE-2018-8897. The connected AMD advisories confirm this issue under AMD SB-5001/AMD SB-4002 families with...

CVE-2021-26336

CVE-2021-26336 concerns AMD System Management Unit (SMU) with insufficient bounds checking that can cause invalid memory accesses/updates, leading to an SMU hang and the system may fail to service further requests from other components. Multiple sources confirm the issue under the SMU and referen...

CVE-2021-26392

CVE-2021-26392 involves insufficient verification of a missing size check in LoadModule, leading to an out-of-bounds write that could enable code execution in the OS/kernel via loading a malicious TA. AMD’s related bulletin (AMD-SB-5001) labels this CVE as Medium and provides mitigations through ...

CVE-2023-20563

CVE-2023-20563 is a documented AMD/PI firmware vulnerability affecting System Management Mode (SMM) with local privilege escalation potential. The Connected AMD bulletin entries (AMD-SB-5001 and AMD-SB-4002) describe multiple affected AMD embedded platforms and indicate mitigations via Platform I...

CVE-2021-26391

CVE-2021-26391 affects AMD firmware/TPM-like trust environment: insufficient verification of multiple header signatures when loading a Trusted Application (TA) may allow a privileged attacker to gain code execution in the TA or OS/kernel. AMD-SB-4001 lists this CVE as Medium severity and provides...

CVE-2023-20596

CVE-2023-20596 involves improper input validation in the AMD SMM Supervisor. A compromised SMI handler could gain Ring0 and potentially execute arbitrary code. Documents show affected AMD platforms across Desktop, Mobile, and Embedded lines, with mitigations delivered via OEM firmware updates (e....

CVE-2023-20559

The CVE-2023-20559 entry concerns AMD Ryzen 2000-series CPUs with a vulnerability in the System Management Mode (SMM) component. Specifically, insufficient control flow management in AmdCpmGpioInitSmm could allow a privileged attacker to tamper with the SMM handler, potentially leading to privile...

CVE-2021-46758

CVE-2021-46758 involves insufficient validation of SPI flash addresses in the AMD Secure Processor (ASP) bootloader. The issue may allow an attacker to read data mapped beyond SPI flash, potentially impacting availability and integrity. Related documents confirm the vulnerability in ASP bootloade...

CVE-2023-20589

The CVE-2023-20589 entry corresponds to a voltage fault injection vulnerability affecting fTPM ASP secure boot on AMD Ryzen platforms (Zen 1/2/3). The AMD-SB-4005 bulletin provides concrete details: potential arbitrary code execution via physical access and specialized hardware, impacting a wide ...

CVE-2023-20565

CVE-2023-20565 is documented in AMD’s embedded/PI firmware advisories (AMD-SB-5001 and related) as a high-severity issue where insufficient protections in System Management Mode (SMM) could allow privilege escalation via local access. The connected AMD bulletin provides mitigations via Platform I...

CVE-2021-26337

The CVE-2021-26337 issue is an AMD SMU (System Management Unit) DRAM address validation flaw. It can permit a DMA read from an invalid DRAM address into SRAM, causing the SMU to stop servicing further requests. Mitigations are provided by AMD/AGSIA: update to the specified AGESA PI software versi...