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Δ / VULNERABILITY RECORD

CVE-2025-0033.

Source-reported disclosure and enrichment record.

SEVERITY / CVSSHIGH / 8.2No severity score in this snapshot.
EXPLOITATION STATUSNot listed in the cached KEV catalogThis does not establish absence of exploitation.
RECORD STATUSMicrosoft vendor recordModified Oct 15, 2025

Disclosure summary

Microsoft is aware of AMD-SB-3020 | CVE-2025-0033 disclosed by AMD on October 13, 2025. CVE-2025-0033 is a vulnerability in AMD EPYC processors using Secure Encrypted Virtualization – 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. Across 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.

Source-specific records & product guidance

Sources retain their own attribution and scoring. Follow the original record to confirm affected versions, fixed releases, and configuration conditions.

Microsoft Security Updates (CVRF) · 2025-Oct

Open original source · Updated Oct 15, 2025

AMD CVE-2025-0033: RMP Corruption During SNP Initialization

Maximum of vendor-reported product scores; products and fixed builds are associations, not a universal affected-version statement.

Microsoft maximum product score: 8.2

VendorProduct / associationVersion / bounds
Microsoft update guideAzure Confidential Compute VM SKU ECasv5/ECadsv5 (MSRC status code 3)
Microsoft update guideAzure Confidential Compute VM SKU DCasv5/DCadsv5 (MSRC status code 3)
Microsoft update guideAzure Confidential Compute VM SKU DCasv6/DCadsv6 (MSRC status code 3)
Microsoft update guideAzure Confidential Compute VM SKU ECasv6/ECadsv6 (MSRC status code 3)
Microsoft update guideAzure Confidential Compute GPU SKU NCC40ads_H100_v5 (MSRC status code 3)

Original records & references

PUBLISHED 2025-10-13T03:00:00-04:00
MODIFIED 2025-10-15T03:00:00-04:00
INGESTED 2026-10-08T12:45:30-04:00