CVE-2021-26328
MEDIUM
4.4
CVSS Score
Published: January 10, 2023 at 08:56 PM UTC
Updated: June 17, 2026 at 03:43 AM UTC
48 products affected across 1 vendorEpyc 7663 FirmwareEpyc 7713P FirmwareEpyc 7413 Firmware
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Severity
MEDIUM4.4
Exploit prediction
EPSS 0.2%
SSVC
No known exploit
Description
Failure to verify the mode of CPU execution at the time of SNP_INIT may lead to a potential loss of memory integrity for SNP guests.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < milanpi_1.0.0.8
Affected range stops below milanpi_1.0.0.8, so it looks safe — our inference, not a vendor statement
v < milanpi_1.0.0.8
Affected range stops below milanpi_1.0.0.8, so it looks safe — our inference, not a vendor statement
amd-epyc-72f3 (same device)
v < milanpi_1.0.0.8
Affected range stops below milanpi_1.0.0.8, so it looks safe — our inference, not a vendor statement
amd-epyc-7313 (same device)
v < milanpi_1.0.0.8
Affected range stops below milanpi_1.0.0.8, so it looks safe — our inference, not a vendor statement
amd-epyc-7313p (same device)
v < milanpi_1.0.0.8
Affected range stops below milanpi_1.0.0.8, so it looks safe — our inference, not a vendor statement
amd-epyc-7343 (same device)
v < milanpi_1.0.0.8
Affected range stops below milanpi_1.0.0.8, so it looks safe — our inference, not a vendor statement
amd-epyc-7373x (same device)
v < milanpi_1.0.0.8
Affected range stops below milanpi_1.0.0.8, so it looks safe — our inference, not a vendor statement
amd-epyc-73f3 (same device)
v < milanpi_1.0.0.8
Affected range stops below milanpi_1.0.0.8, so it looks safe — our inference, not a vendor statement
amd-epyc-7413 (same device)
v < milanpi_1.0.0.8
Affected range stops below milanpi_1.0.0.8, so it looks safe — our inference, not a vendor statement
amd-epyc-7443 (same device)
v < milanpi_1.0.0.8
Affected range stops below milanpi_1.0.0.8, so it looks safe — our inference, not a vendor statement
amd-epyc-7443p (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
4.4MEDIUMCISA-ADP
- Attack Vector
- LOCAL
- Complexity
- LOW
- Privileges
- LOW
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- LOW
- Availability
- LOW
Vector?
Quick Info
StatusMODIFIED
CWE
NVD-CWE-noinfoCWE-358
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