CVE-2026-28249

Published Nov 10, 2026 CVSS 4.0 · 4.6 Medium EPSS < 1% KEV · Not listed
Description
Improper preservation of consistency between independent representations of shared state in AMD Secure Encrypted Virtualization (SEV) firmware could allow a malicious hypervisor to potentially affect cache coherency for guest context pages resulting in loss of integrity.

Remediation

No solution or workaround provided in the CVE record

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
Title Potential Integrity Violation via Cache Coherency Issues in AMD SEV Firmware
Type Values Removed Values Added
Title Potential Integrity Violation via Cache Coherency Issues in AMD SEV Firmware
Type Values Removed Values Added
Description Improper preservation of consistency between independent representations of shared state in AMD Secure Encrypted Virtualization (SEV) firmware could allow a malicious hypervisor to potentially affect cache coherency for guest context pages resulting in loss of integrity.
Weaknesses CWE-1250
References
Metrics cvssV4_0

{'score': 4.6, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/SA:N'}

Subscriptions

No data.

Weaknesses

Sources

Status
PUBLISHED
Assigner
AMD
Published
Updated
Nov 12, 2026, 11:55 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