CVE-2026-28248

Published Nov 10, 2026 CVSS 4.0 · 5.9 Medium EPSS < 1% KEV · Not listed
Description
Improper enforcement of behavioral workflow in AMD Secure Encrypted Virtualization (SEV) firmware could allow a malicious hypervisor to potentially launch a guest whose attestation report contains an ID key digest for an ID block that doesn't match the guest's measurement resulting in loss of integrity.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

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History
Type Values Removed Values Added
Title SEV Firmware Improper Enforcement Leading to Attestation Integrity Loss
Type Values Removed Values Added
Title SEV Firmware Improper Enforcement Leading to Attestation Integrity Loss
Type Values Removed Values Added
Description Improper enforcement of behavioral workflow in AMD Secure Encrypted Virtualization (SEV) firmware could allow a malicious hypervisor to potentially launch a guest whose attestation report contains an ID key digest for an ID block that doesn't match the guest's measurement resulting in loss of integrity.
Weaknesses CWE-841
References
Metrics cvssV4_0

{'score': 5.9, 'vector': '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'}

Subscriptions

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Weaknesses

Sources

Status
PUBLISHED
Assigner
AMD
Published
Updated
Nov 12, 2026, 11:54 PM
Reserved
Feb 25, 2026, 3:31 PM
Status
Awaiting Analysis
Published
Nov 10, 2026, 10:18 PM
Modified
Nov 13, 2026, 12:20 AM