CVE-2023-20527
MEDIUM
6.5
CVSS Score
Published: January 10, 2023 at 08:57 PM UTC
Updated: June 17, 2026 at 05:30 AM UTC
128 products affected across 1 vendorEpyc 7663 FirmwareEpyc 7713P FirmwareEpyc 7413 Firmware
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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.6%
SSVC
No known exploit
Description
Improper syscall input validation in the ASP Bootloader may allow a privileged attacker to read memory out-of-bounds, potentially leading to a denial-of-service.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < naplespi_1.0.0.g
Affected range stops below naplespi_1.0.0.g, so it looks safe — our inference, not a vendor statement
amd-epyc-7001 (same device)
v < romepi_1.0.0.c
Affected range stops below romepi_1.0.0.c, so it looks safe — our inference, not a vendor statement
amd-epyc-7002 (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
v < romepi_1.0.0.c
Affected range stops below romepi_1.0.0.c, so it looks safe — our inference, not a vendor statement
amd-epyc-7232p (same device)
v < naplespi_1.0.0.g
Affected range stops below naplespi_1.0.0.g, so it looks safe — our inference, not a vendor statement
amd-epyc-7251 (same device)
v < romepi_1.0.0.c
Affected range stops below romepi_1.0.0.c, so it looks safe — our inference, not a vendor statement
amd-epyc-7252 (same device)
v < naplespi_1.0.0.g
Affected range stops below naplespi_1.0.0.g, so it looks safe — our inference, not a vendor statement
amd-epyc-7261 (same device)
v < romepi_1.0.0.c
Affected range stops below romepi_1.0.0.c, so it looks safe — our inference, not a vendor statement
amd-epyc-7262 (same device)
v < romepi_1.0.0.c
Affected range stops below romepi_1.0.0.c, so it looks safe — our inference, not a vendor statement
amd-epyc-7272 (same device)
v < naplespi_1.0.0.g
Affected range stops below naplespi_1.0.0.g, so it looks safe — our inference, not a vendor statement
amd-epyc-7281 (same device)
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (1)
Vendor Advisory
Source: [email protected]
https://www.amd.com/en/corporate/product-security/bulletin/AMD-SB-1032SSVC — Action Prioritization
SSVCNo known exploitNot automatablePartial impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
6.5MEDIUMCISA-ADP
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-20
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