CVE-2025-52535

Improper Resource Reuse in AMD SEV Firmware Enables Hypervisor RMP Write

Published Nov 10, 2026 CVSS 4.0 · 5.9 Medium EPSS < 1% KEV · Not listed
Description
Improper resource reuse in the AMD Secure Encrypted Virtualization (SEV) firmware could allow an attacker with hypervisor access to write to the Reverse Map Table (RMP) protected memory, potentially resulting in loss of guest memory 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 Improper Resource Reuse in AMD SEV Firmware Enables Hypervisor RMP Write
Type Values Removed Values Added
First Time appeared Amd
Amd epyc 7003 Series Processors
Amd epyc 8004 Series Processors
Amd epyc 9004 Series Processors
Amd epyc 9005 Series Processors
Amd epyc Embedded 7003 Series Processors
Amd epyc Embedded 8004 Series Processors
Amd epyc Embedded 9004 Series Processors
Amd epyc Embedded 9005 Series Processors
Vendors & Products Amd
Amd epyc 7003 Series Processors
Amd epyc 8004 Series Processors
Amd epyc 9004 Series Processors
Amd epyc 9005 Series Processors
Amd epyc Embedded 7003 Series Processors
Amd epyc Embedded 8004 Series Processors
Amd epyc Embedded 9004 Series Processors
Amd epyc Embedded 9005 Series Processors
Type Values Removed Values Added
Title Hypervisor-Level RMP Write via Improper Resource Reuse in AMD SEV Firmware
Type Values Removed Values Added
Title Hypervisor-Level RMP Write via Improper Resource Reuse in AMD SEV Firmware
Type Values Removed Values Added
Description Improper resource reuse in the AMD Secure Encrypted Virtualization (SEV) firmware could allow an attacker with hypervisor access to write to the Reverse Map Table (RMP) protected memory, potentially resulting in loss of guest memory integrity.
Weaknesses CWE-672
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'}