CVE-2023-20533
HIGH
7.5
CVSS Score
Published: November 14, 2023 at 06:52 PM UTC
Updated: June 17, 2026 at 05:30 AM UTC
179 products affected across 1 vendorEpyc 7713P FirmwareEpyc 7663 FirmwareEpyc 7413 Firmware
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Severity
HIGH7.5
Exploit prediction
EPSS 0.5%
Description
Insufficient DRAM address validation in System Management Unit (SMU) may allow an attacker to read/write from/to an invalid DRAM address, potentially resulting in denial-of-service.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < milanpi_1.0.0.5
Affected range stops below milanpi_1.0.0.5, so it looks safe — our inference, not a vendor statement
amd-epyc-7203 (same device)
v < milanpi_1.0.0.5
Affected range stops below milanpi_1.0.0.5, so it looks safe — our inference, not a vendor statement
amd-epyc-7203p (same device)
v < romepi_1.0.0.d
Affected range stops below romepi_1.0.0.d, so it looks safe — our inference, not a vendor statement
amd-epyc-7232p (same device)
v < romepi_1.0.0.d
Affected range stops below romepi_1.0.0.d, so it looks safe — our inference, not a vendor statement
amd-epyc-7252 (same device)
v < romepi_1.0.0.d
Affected range stops below romepi_1.0.0.d, so it looks safe — our inference, not a vendor statement
amd-epyc-7262 (same device)
v < romepi_1.0.0.d
Affected range stops below romepi_1.0.0.d, so it looks safe — our inference, not a vendor statement
amd-epyc-7272 (same device)
v < romepi_1.0.0.d
Affected range stops below romepi_1.0.0.d, so it looks safe — our inference, not a vendor statement
amd-epyc-7282 (same device)
v < milanpi_1.0.0.5
Affected range stops below milanpi_1.0.0.5, so it looks safe — our inference, not a vendor statement
amd-epyc-72f3 (same device)
v < romepi_1.0.0.d
Affected range stops below romepi_1.0.0.d, so it looks safe — our inference, not a vendor statement
amd-epyc-7302 (same device)
v < romepi_1.0.0.d
Affected range stops below romepi_1.0.0.d, so it looks safe — our inference, not a vendor statement
amd-epyc-7302p (same device)
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (3)
Vendor Advisory
Source: [email protected]
https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-3002Vendor Advisory
Source: [email protected]
https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-4002Vendor Advisory
Source: [email protected]
https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-5001CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
NVD-CWE-noinfo
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