CVE-2026-28247

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-28247
StatePUBLISHED
AssignerAMD
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-11-10 22:18:32 UTC
Updated2026-11-10 22:18:32 UTC
DescriptionImproper Access Control Applied to Mirrored or Aliased Memory Regions in AMD Secure Encrypted Virtualization (SEV) firmware could allow a malicious hypervisor to change the encryption bit for guest context pages potentially resulting in loss of integrity.

Risk And Classification

Primary CVSS: v4.0 5.9 MEDIUM from [email protected]

CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Problem Types: CWE-1257 | CWE-1257 CWE-1257 Improper Access Control Applied to Mirrored or Aliased Memory Regions

VersionSourceTypeScoreSeverityVector
4.0[email protected]Secondary5.9MEDIUMCVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/SA:N/E:X/C...
4.0CNACVSS5.9MEDIUMCVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/SA:N

CVSS v4.0 Breakdown

Attack Vector
Local
Attack Complexity
Low
Attack Requirements
None
Privileges Required
High
User Interaction
None
Confidentiality
None
Integrity
None
Availability
None
Sub Conf.
None
Sub Integrity
High
Sub Availability
None

CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA AMD AMD EPYC 9004 Series Processors unaffected GenoaPI_1.0.0.J Not specified
CNA AMD AMD EPYC 7003 Series Processors unaffected MilanPI-SP3_1.0.0.K Not specified
CNA AMD AMD EPYC 9005 Series Processors unaffected TurinPI_1.0.0.B Not specified
CNA AMD AMD EPYC 8004 Series Processors unaffected GenoaPI_1.0.0.J Not specified
CNA AMD AMD EPYC 8005 Series Processors unaffected TurinPI_1.0.0.B Not specified
CNA AMD AMD EPYC Embedded 7003 Series Processors unaffected EmbMilanPI-SP3 1.0.0.E Not specified
CNA AMD AMD EPYC Embedded 9004 Series Processors Formerly Codenamed Genoa unaffected EmbeddedGenoaPI_1.0.0.E Not specified
CNA AMD AMD EPYC Embedded 9004 Series Processors Formerly Codenamed Bergamo unaffected EmbeddedGenoaPI_1.0.0.E Not specified
CNA AMD AMD EPYC Embedded 8004 Series Processors unaffected EmbeddedGenoaPI_1.0.0.E Not specified
CNA AMD AMD EPYC Embedded 9005 Series Processors unaffected EmbeddedTurinPI_SP5_1005 Not specified

References

ReferenceSourceLinkTags
www.amd.com/en/resources/product-security/bulletin/AMD-SB-3038.html [email protected] www.amd.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

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