{
  "cveId": "CVE-2025-0033",
  "url": "https://patchblox.com/security/cve/CVE-2025-0033",
  "summary": "CVE-2025-0033 is fixed in amd64-microcode on 1 platform by DEBIAN-CVE-2025-0033 (version 3.20260923.1), released October 14, 2025. It is not reported as exploited. Patch Radar priority: Urgent.",
  "title": "AMD CVE-2025-0033: RMP Corruption During SNP Initialization",
  "description": "\u003Cp\u003EMicrosoft is aware of \u003Ca href=\u0022http://https://www.amd.com/en/resources/product-security/bulletin/amd-sb-3020.html\u0022\u003EAMD-SB-3020 | CVE-2025-0033\u003C/a\u003E disclosed by AMD on October 13, 2025.\u003C/p\u003E\n\u003Cp\u003ECVE-2025-0033 is a vulnerability in AMD EPYC processors using Secure Encrypted Virtualization \u2013 Secure Nested Paging (SEV-SNP). It involves a race condition during Reverse Map Table (RMP) initialization that could allow a malicious or compromised hypervisor to modify RMP entries before they are locked, potentially impacting the integrity of SEV-SNP guest memory. This issue does not expose plaintext data or secrets and requires privileged control of the hypervisor to exploit.\u003C/p\u003E\n\u003Cp\u003EAcross Azure Confidential Computing products, multiple security guardrails are in place to prevent host compromise, combining isolation, integrity verification and continuous monitoring. All host operations follow audited and approved management pathways, with administrative access strictly controlled, limited and logged. Together, these protections reduce the risk of host compromise or unauthorized memory manipulation, helping ensure that confidential workloads and customer VMs maintain their confidentiality and integrity on Azure hosts.\u003C/p\u003E",
  "published": "2025-10-13T12:00:00Z",
  "severity": "Critical",
  "cvss": 8.2,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:N/I:H/A:N",
  "epss": 0.00211,
  "epssPercentile": 0.1146,
  "priority": "Urgent",
  "priorityTier": 2,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": true,
  "exploitabilityAssessment": "Exploitation Less Likely",
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2025-0033",
  "fixes": [
    {
      "platform": "linux",
      "product": "amd64-microcode",
      "release": "Debian 14",
      "fixedVersion": "3.20260923.1",
      "fix": "DEBIAN-CVE-2025-0033",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2025-0033",
      "released": "2025-10-14T15:16:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-10T07:50:38Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}