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Δ / VULNERABILITY RECORD

CVE-2026-31592.

Source-reported disclosure and enrichment record.

SEVERITY / CVSSMEDIUM / 6.6No severity score in this snapshot.
EXPLOITATION STATUSNot listed in the cached KEV catalogThis does not establish absence of exploitation.
RECORD STATUSMicrosoft vendor recordModified Sep 24, 2026

Disclosure summary

KVM: SEV: Protect *all* of sev_mem_enc_register_region() with kvm->lock

Source-reported weakness categories

CWE-476

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) · 2026-Apr

Open original source · Updated Sep 24, 2026

KVM: SEV: Protect *all* of sev_mem_enc_register_region() with kvm->lock

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

Microsoft maximum product score: 6.6

VendorProduct / associationVersion / bounds
Microsoft update guideazl3 kernel 6.6.134.1-2 on Azure Linux 3.0 (MSRC status code 3)
Microsoft update guideazl3 kernel 6.6.138.1-1 on Azure Linux 3.0 (MSRC status code 3)
Microsoft update guideazl3 kernel 6.6.145.2-1 on Azure Linux 3.0 (MSRC status code 3)
Microsoft update guideazl3 kernel 6.6.152.1-1 on Azure Linux 3.0 (MSRC status code 3)
Microsoft update guidecbl2 kernel 5.15.202.1-1 on CBL-Mariner 2.0 (MSRC status code 3)
Microsoft update guideazl3 kernel 6.6.130.1-3 on Azure Linux 3.0 (MSRC status code 3)
Microsoft update guidecbl2 kernel 5.15.202.1-1 on CBL Mariner 2.0 (MSRC status code 3)
Microsoft update guideazl3 kernel 6.6.137.1-2 on Azure Linux 3.0 (MSRC status code 3)
Microsoft update guideazl3 kernel 6.6.139.1-1 on Azure Linux 3.0 (MSRC status code 3)
Microsoft update guideazl3 kernel 6.6.141.1-1 on Azure Linux 3.0 (MSRC status code 3)
Microsoft update guideazl3 kernel 6.6.143.1-1 on Azure Linux 3.0 (MSRC status code 3)
Microsoft update guideazl3 kernel 6.6.144.1-1 on Azure Linux 3.0 (MSRC status code 3)
Microsoft update guideazl3 kernel 6.6.150.1-1 on Azure Linux 3.0 (MSRC status code 3)
Microsoft update guideazl3 kernel 6.6.157.1-1 on Azure Linux 3.0 (MSRC status code 3)

Vendor remediation references

  • Release Notes · product IDs 21892-17084, 21093-21692, 21932-17084
  • Vendor guidance · product IDs 21892-17084, 21093-21692, 21932-17084

Original records & references

PUBLISHED 2026-04-25T21:09:43-04:00
MODIFIED 2026-09-24T22:28:55-04:00
INGESTED 2026-10-08T12:40:48-04:00