What is CVE-2026-31593?

CVE-2026-31593 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. KVM: SEV: Reject attempts to sync VMSA of an already-launched/encrypted vCPU

Which CVE IDs does CVE-2026-31593 cover?

CVE-2026-31593 covers the following CVE IDs: CVE-2026-31593. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-31593?

CVE-2026-31593 has a CVSS v3 base score of 8.8, published by Microsoft Security Response Center (MSRC).

CVE-2026-31593HighCVSS 8.8

KVM: SEV: Reject attempts to sync VMSA of an already-launched/encrypted vCPU

Vendor

Microsoft Security Response Center (MSRC)

Published

June 2, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-31593 →