CVE-2026-0435

Unauthorized Guest Device Swapping in AMD Secure Encrypted Virtualization Firmware

Published Nov 10, 2026 CVSS 4.0 · 6 Medium EPSS < 1% KEV · Not listed
Description
Operation on a resource after expiration or release in the AMD Secure Encrypted Virtualization (SEV) firmware could allow an attacker with administrative privileges to swap out a guest device without the guest's knowledge, potentially resulting in a loss of confidentiality and 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
Title Unauthorized Guest Device Swapping in AMD Secure Encrypted Virtualization Firmware
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 Secure Encrypted Virtualization Guest Device Swap Vulnerability
Type Values Removed Values Added
Title Secure Encrypted Virtualization Guest Device Swap Vulnerability
Type Values Removed Values Added
Description Operation on a resource after expiration or release in the AMD Secure Encrypted Virtualization (SEV) firmware could allow an attacker with administrative privileges to swap out a guest device without the guest's knowledge, potentially resulting in a loss of confidentiality and integrity.
Weaknesses CWE-672
References
Metrics cvssV4_0

{'score': 6, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/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