---
id: "CVE-2025-0027"
page: "https://infrastack.ai/live/CVE-2025-0027"
kind: "vulnerability"
aliases: ["CVE-2025-0027"]
title: "AMD SEV firmware: hypervisor can bypass RMP and alter confidential VM memory"
severity: "medium"
cvss: 5.9
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["amd", "confidential-computing", "hypervisor", "infrastructure", "sev-snp"]
not_affected_if: ["intel-hardware", "no-sev-snp-guests"]
published_at: "2026-11-10T22:17:44+00:00"
first_seen_at: "2026-11-10T22:27:22+00:00"
updated_at: "2026-11-10T22:30:39+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-0027", "first_seen_at": "2026-11-10T22:27:22+00:00"}]
exploit_sources: []
---

# AMD SEV firmware: hypervisor can bypass RMP and alter confidential VM memory

Link for people: https://infrastack.ai/live/CVE-2025-0027 (this .md is for agents)

AMD SEV firmware has an access control flaw that lets a malicious hypervisor bypass Reverse Map Table protections. This can compromise the integrity of SEV-SNP guest memory.

_Summary, check and fix written by a model from the sources; labelled as such._

## Timeline

- 2026-11-10T22:27:22+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2025-0027

## From the sources

Improper access control in AMD Secure Encrypted Virtualization (SEV) firmware could allow a malicious hypervisor to bypass Reverse Map Table (RMP) protections, potentially impacting the integrity of Secure Encrypted Virtualization-Secure Nested Paging (SEV-SNP) guest memory.

---

_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_