CVE-2026-0435 · Infrastructure
NO FIX YET
AMD Secure Encrypted Virtualization (SEV) firmware performs an operation on a resource after it has been released or expired. An attacker with administrative privileges can swap out a guest device without the guest noticing, which can break confidentiality and integrity.
first public Nov 10, 2026 · 1 source
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Affects hosts running AMD SEV-enabled virtual machines, where the hypervisor and firmware are under the control of the operator. Only an attacker who already has administrative privileges on the host can trigger it, so systems without AMD SEV guests are unlikely to be exposed. Affected firmware versions and the vendor patch are not named in the sources.
Not affected if no-amd-sev-guests, non-amd-hardware
Who cares amd, hypervisor, sev, virtualization
Unknown from the sources.
No fix yet, per the sources.
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.
This page as .md · .json · 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/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
NVD data is provided by NIST and is public domain. Posts quoted belong to their authors.
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