Home/CVE/Insufficient validation of SPI flash addresses in the ASP (AMD Secure Processor) bootloader may allow an attacker to rea
CVE

CVE-2021-46758

Insufficient validation of SPI flash addresses in the ASP (AMD Secure Processor) bootloader may allow an attacker to rea

Insufficient validation of SPI flash addresses in the ASP (AMD Secure Processor) bootloader may allow an attacker to read data in memory mapped beyond SPI flash resulting in a potential loss of availability and integrity.

MEDIUM · CVSS 6.1 EPSS 0.001
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
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Affected Products & Versions

60
amd ryzen 7 5700g firmware< comboam4v2_pi_1.2.0.8
amd ryzen 7 5700ge firmware< comboam4v2_pi_1.2.0.8
amd ryzen 5 5600g firmware< comboam4v2_pi_1.2.0.8
amd ryzen 5 5600ge firmware< comboam4v2_pi_1.2.0.8
amd ryzen 3 5300g firmware< comboam4v2_pi_1.2.0.8
amd ryzen 3 5300ge firmware< comboam4v2_pi_1.2.0.8
amd ryzen 9 7950x3d firmware< comboam5_1.0.0.1
amd ryzen 9 7900x3d firmware< comboam5_1.0.0.1
▣

Scoring & Timeline

6.1
MEDIUM · 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 NVD14 Nov 2023 · 07:15 PM
CVSS VectorCVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
🔗

References & Sources

1
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-4002Vendor Advisory
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