Home/CVE/Insufficient input validation in the ASP (AMD Secure Processor) bootloader may allow an attacker with a compromised Uapp
CVE

CVE-2021-46754

Insufficient input validation in the ASP (AMD Secure Processor) bootloader may allow an attacker with a compromised Uapp

Insufficient input validation in the ASP (AMD Secure Processor) bootloader may allow an attacker with a compromised Uapp or ABL to coerce the bootloader into exposing sensitive information to the SMU (System Management Unit) resulting in a potential loss of confidentiality and integrity.

CRITICAL · CVSS 9.1 EPSS 0.00321
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-20Improper Input Validation
▤

Affected Products & Versions

29
amd ryzen 5300g firmwareall versions
amd ryzen 5300ge firmwareall versions
amd ryzen 5500 firmwareall versions
amd ryzen 5600 firmwareall versions
amd ryzen 5600g firmwareall versions
amd ryzen 5600ge firmwareall versions
amd ryzen 5600x firmwareall versions
amd ryzen 5700g firmwareall versions
▣

Scoring & Timeline

9.1
CRITICAL · CVSS v3.1 · psirt@amd.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD09 May 2023 · 08:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
🔗

References & Sources

2
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-4001Vendor Advisory
https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-5001
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