Home/CVE/Insufficient protections in System Management Mode (SMM) code may allow an attacker to potentially enable escalation of
CVE

CVE-2023-20565

Insufficient protections in System Management Mode (SMM) code may allow an attacker to potentially enable escalation of

Insufficient protections in System Management Mode (SMM) code may allow an attacker to potentially enable escalation of privilege via local access.

HIGH · CVSS 7.8 EPSS 0.0011
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-269Improper Privilege Management
▤

Affected Products & Versions

60
amd ryzen 3 5100 firmware< comboam4v2_1.2.0.b
amd ryzen 3 5300g firmware< comboam4v2_1.2.0.b
amd ryzen 3 5300ge firmware< comboam4v2_1.2.0.b
amd ryzen 5 5500 firmware< comboam4v2_1.2.0.b
amd ryzen 5 5600g firmware< comboam4v2_1.2.0.b
amd ryzen 5 5600ge firmware< comboam4v2_1.2.0.b
amd ryzen 7 5700 firmware< comboam4v2_1.2.0.b
amd ryzen 7 5700g firmware< comboam4v2_1.2.0.b
▣

Scoring & Timeline

7.8
HIGH · 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:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
🔗

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-4002Vendor Advisory
https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-5001
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