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    Dashboard / CVE / CVE-2021-26351

    CVE-2021-26351

    Insufficient DRAM address validation in System Management Unit (SMU) may result in a DMA (Direct Memory Access) read/write from/to invalid DRAM address that could result in denial of service.

    Published:May 12, 2022
    Last Modified:Nov 21, 2024
    EPS:May 12, 2022
    EPSS Score:0.00126
    CVSS Score:5.5

    Affected Products

    Vendor
    Amd
    Product
    Ryzen 3 3100
    Vendor
    Amd
    Product
    Ryzen 3 3100 Firmware
    Vendor
    Amd
    Product
    Ryzen 3 3300g
    Vendor
    Amd
    Product
    Ryzen 3 3300g Firmware
    Vendor
    Amd
    Product
    Ryzen 3 3300x
    Vendor
    Amd
    Product
    Ryzen 3 3300x Firmware
    Vendor
    Amd
    Product
    Ryzen 3 5125c
    Vendor
    Amd
    Product
    Ryzen 3 5125c Firmware
    Vendor
    Amd
    Product
    Ryzen 3 5400u
    Vendor
    Amd
    Product
    Ryzen 3 5400u Firmware
    Vendor
    Amd
    Product
    Ryzen 3 5425c
    Vendor
    Amd
    Product
    Ryzen 3 5425c Firmware
    Vendor
    Amd
    Product
    Ryzen 3 5425u
    Vendor
    Amd
    Product
    Ryzen 3 5425u Firmware
    Vendor
    Amd
    Product
    Ryzen 5 3400g
    Vendor
    Amd
    Product
    Ryzen 5 3400g Firmware
    Vendor
    Amd
    Product
    Ryzen 5 3450g
    Vendor
    Amd
    Product
    Ryzen 5 3450g Firmware
    Vendor
    Amd
    Product
    Ryzen 5 3600
    Vendor
    Amd
    Product
    Ryzen 5 3600 Firmware
    Vendor
    Amd
    Product
    Ryzen 5 3600x
    Vendor
    Amd
    Product
    Ryzen 5 3600x Firmware
    Vendor
    Amd
    Product
    Ryzen 5 5560u
    Vendor
    Amd
    Product
    Ryzen 5 5560u Firmware
    Vendor
    Amd
    Product
    Ryzen 5 5600h
    Vendor
    Amd
    Product
    Ryzen 5 5600h Firmware
    Vendor
    Amd
    Product
    Ryzen 5 5600hs
    Vendor
    Amd
    Product
    Ryzen 5 5600hs Firmware
    Vendor
    Amd
    Product
    Ryzen 5 5600u
    Vendor
    Amd
    Product
    Ryzen 5 5600u Firmware
    Vendor
    Amd
    Product
    Ryzen 5 5600x
    Vendor
    Amd
    Product
    Ryzen 5 5600x Firmware
    Vendor
    Amd
    Product
    Ryzen 5 5625c
    Vendor
    Amd
    Product
    Ryzen 5 5625c Firmware
    Vendor
    Amd
    Product
    Ryzen 5 5625u
    Vendor
    Amd
    Product
    Ryzen 5 5625u Firmware
    Vendor
    Amd
    Product
    Ryzen 5 5700g
    Vendor
    Amd
    Product
    Ryzen 5 5700g Firmware
    Vendor
    Amd
    Product
    Ryzen 5 5700ge
    Vendor
    Amd
    Product
    Ryzen 5 5700ge Firmware
    Vendor
    Amd
    Product
    Ryzen 7 3700x
    Vendor
    Amd
    Product
    Ryzen 7 3700x Firmware
    Vendor
    Amd
    Product
    Ryzen 7 3800x
    Vendor
    Amd
    Product
    Ryzen 7 3800x Firmware
    Vendor
    Amd
    Product
    Ryzen 7 5800h
    Vendor
    Amd
    Product
    Ryzen 7 5800h Firmware
    Vendor
    Amd
    Product
    Ryzen 7 5800hs
    Vendor
    Amd
    Product
    Ryzen 7 5800hs Firmware
    Vendor
    Amd
    Product
    Ryzen 7 5800u
    Vendor
    Amd
    Product
    Ryzen 7 5800u Firmware
    Vendor
    Amd
    Product
    Ryzen 7 5825c
    Vendor
    Amd
    Product
    Ryzen 7 5825c Firmware
    Vendor
    Amd
    Product
    Ryzen 7 5825u
    Vendor
    Amd
    Product
    Ryzen 7 5825u Firmware
    Vendor
    Amd
    Product
    Ryzen 9 3900x
    Vendor
    Amd
    Product
    Ryzen 9 3900x Firmware
    Vendor
    Amd
    Product
    Ryzen 9 3950x
    Vendor
    Amd
    Product
    Ryzen 9 3950x Firmware
    Vendor
    Amd
    Product
    Ryzen 9 5900hs
    Vendor
    Amd
    Product
    Ryzen 9 5900hs Firmware
    Vendor
    Amd
    Product
    Ryzen 9 5900hx
    Vendor
    Amd
    Product
    Ryzen 9 5900hx Firmware
    Vendor
    Amd
    Product
    Ryzen 9 5980hs
    Vendor
    Amd
    Product
    Ryzen 9 5980hs Firmware
    Vendor
    Amd
    Product
    Ryzen 9 5980hx
    Vendor
    Amd
    Product
    Ryzen 9 5980hx Firmware
    Vendor
    Amd
    Product
    Ryzen Threadripper 2920x
    Vendor
    Amd
    Product
    Ryzen Threadripper 2920x Firmware
    Vendor
    Amd
    Product
    Ryzen Threadripper 2950x
    Vendor
    Amd
    Product
    Ryzen Threadripper 2950x Firmware
    Vendor
    Amd
    Product
    Ryzen Threadripper 2970wx
    Vendor
    Amd
    Product
    Ryzen Threadripper 2970wx Firmware
    Vendor
    Amd
    Product
    Ryzen Threadripper 2990wx
    Vendor
    Amd
    Product
    Ryzen Threadripper 2990wx Firmware
    Vendor
    Amd
    Product
    Ryzen Threadripper 3960x
    Vendor
    Amd
    Product
    Ryzen Threadripper 3960x Firmware
    Vendor
    Amd
    Product
    Ryzen Threadripper 3970x
    Vendor
    Amd
    Product
    Ryzen Threadripper 3970x Firmware
    Vendor
    Amd
    Product
    Ryzen Threadripper 3990x
    Vendor
    Amd
    Product
    Ryzen Threadripper 3990x Firmware
    Vendor
    Amd
    Product
    Ryzen Threadripper Pro 3945wx
    Vendor
    Amd
    Product
    Ryzen Threadripper Pro 3945wx Firmware
    Vendor
    Amd
    Product
    Ryzen Threadripper Pro 3955wx
    Vendor
    Amd
    Product
    Ryzen Threadripper Pro 3955wx Firmware
    Vendor
    Amd
    Product
    Ryzen Threadripper Pro 3975wx
    Vendor
    Amd
    Product
    Ryzen Threadripper Pro 3975wx Firmware
    Vendor
    Amd
    Product
    Ryzen Threadripper Pro 3995wx
    Vendor
    Amd
    Product
    Ryzen Threadripper Pro 3995wx Firmware
    Vendor
    Amd
    Product
    Ryzen Threadripper Pro 5945wx
    Vendor
    Amd
    Product
    Ryzen Threadripper Pro 5945wx Firmware
    Vendor
    Amd
    Product
    Ryzen Threadripper Pro 5955wx
    Vendor
    Amd
    Product
    Ryzen Threadripper Pro 5955wx Firmware
    Vendor
    Amd
    Product
    Ryzen Threadripper Pro 5965wx
    Vendor
    Amd
    Product
    Ryzen Threadripper Pro 5965wx Firmware
    Vendor
    Amd
    Product
    Ryzen Threadripper Pro 5975wx
    Vendor
    Amd
    Product
    Ryzen Threadripper Pro 5975wx Firmware
    Vendor
    Amd
    Product
    Ryzen Threadripper Pro 5995wx
    Vendor
    Amd
    Product
    Ryzen Threadripper Pro 5995wx Firmware

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-20 Improper Input Validation

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-10 Buffer Overflow via Environment Variables
    CAPEC-101 Server Side Include (SSI) Injection
    CAPEC-104 Cross Zone Scripting
    CAPEC-108 Command Line Execution through SQL Injection
    CAPEC-109 Object Relational Mapping Injection
    CAPEC-110 SQL Injection through SOAP Parameter Tampering
    CAPEC-120 Double Encoding
    CAPEC-13 Subverting Environment Variable Values
    CAPEC-135 Format String Injection
    CAPEC-136 LDAP Injection
    CAPEC-14 Client-side Injection-induced Buffer Overflow
    CAPEC-153 Input Data Manipulation
    CAPEC-182 Flash Injection
    CAPEC-209 XSS Using MIME Type Mismatch
    CAPEC-22 Exploiting Trust in Client
    CAPEC-23 File Content Injection
    CAPEC-230 Serialized Data with Nested Payloads
    CAPEC-231 Oversized Serialized Data Payloads
    CAPEC-24 Filter Failure through Buffer Overflow
    CAPEC-250 XML Injection
    CAPEC-261 Fuzzing for garnering other adjacent user/sensitive data
    CAPEC-267 Leverage Alternate Encoding
    CAPEC-28 Fuzzing
    CAPEC-3 Using Leading 'Ghost' Character Sequences to Bypass Input Filters
    CAPEC-31 Accessing/Intercepting/Modifying HTTP Cookies
    CAPEC-42 MIME Conversion
    CAPEC-43 Exploiting Multiple Input Interpretation Layers
    CAPEC-45 Buffer Overflow via Symbolic Links
    CAPEC-46 Overflow Variables and Tags
    CAPEC-47 Buffer Overflow via Parameter Expansion
    CAPEC-473 Signature Spoof
    CAPEC-52 Embedding NULL Bytes
    CAPEC-53 Postfix, Null Terminate, and Backslash
    CAPEC-588 DOM-Based XSS
    CAPEC-63 Cross-Site Scripting (XSS)
    CAPEC-64 Using Slashes and URL Encoding Combined to Bypass Validation Logic
    CAPEC-664 Server Side Request Forgery
    CAPEC-67 String Format Overflow in syslog()
    CAPEC-7 Blind SQL Injection
    CAPEC-71 Using Unicode Encoding to Bypass Validation Logic
    CAPEC-72 URL Encoding
    CAPEC-73 User-Controlled Filename
    CAPEC-78 Using Escaped Slashes in Alternate Encoding
    CAPEC-79 Using Slashes in Alternate Encoding
    CAPEC-8 Buffer Overflow in an API Call
    CAPEC-80 Using UTF-8 Encoding to Bypass Validation Logic
    CAPEC-81 Web Server Logs Tampering
    CAPEC-83 XPath Injection
    CAPEC-85 AJAX Footprinting
    CAPEC-88 OS Command Injection
    CAPEC-9 Buffer Overflow in Local Command-Line Utilities

    Related CVEs

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    CVE-2023-20533 (CVSS 6.1) — Insufficient DRAM address validation in System Management Unit (SMU) may allow an attacker to read/write from/…
    CVE-2022-23820 (CVSS 7.5) — Failure to validate the AMD SMM communication buffer may allow an attacker to corrupt the SMRAM potentially le…
    CVE-2021-46774 (CVSS 6.7) — Insufficient DRAM address validation in System Management Unit (SMU) may allow an attacker to read/write from/…
    CVE-2023-20597 (CVSS 5.5) — Improper initialization of variables in the DXE driver may allow a privileged user to leak sensitive informati…
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    CVE-2023-20593 (CVSS 5.5) — An issue in “Zen 2” CPUs, under specific microarchitectural circumstances, may allow an attacker to potentiall…
    CVE-2021-26371 (CVSS 5.5) — A compromised or malicious ABL or UApp could send a SHA256 system call to the bootloader, which may result in …
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    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High