CVE-2026-0454

Published Nov 10, 2026 CVSS 4.0 · 4.6 Medium EPSS < 1% KEV · Not listed
Description
An out-of-bounds write in the AMD Secure Encrypted Virtualization (SEV) firmware could allow a malicious hypervisor to corrupt global firmware variables, potentially resulting in loss of integrity.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Amd
Amd epyc 8005 Series Processors
Amd epyc 9005 Series Processors
Amd epyc Embedded 9005 Series Processors
Vendors & Products Amd
Amd epyc 8005 Series Processors
Amd epyc 9005 Series Processors
Amd epyc Embedded 9005 Series Processors
Type Values Removed Values Added
Title Out-of-Bounds Write in AMD SEV Firmware Enables Hypervisor to Corrupt Global Variables
Type Values Removed Values Added
Title Out-of-Bounds Write in AMD SEV Firmware Enables Hypervisor to Corrupt Global Variables
Type Values Removed Values Added
Description An out-of-bounds write in the AMD Secure Encrypted Virtualization (SEV) firmware could allow a malicious hypervisor to corrupt global firmware variables, potentially resulting in loss of integrity.
Weaknesses CWE-787
References
Metrics cvssV4_0

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

Weaknesses

Sources

Status
PUBLISHED
Assigner
AMD
Published
Updated
Nov 12, 2026, 11:52 PM
Reserved
Dec 6, 2025, 1:53 PM
Status
Awaiting Analysis
Published
Nov 10, 2026, 11:17 PM
Modified
Nov 13, 2026, 12:20 AM