What is CVE-2026-34350?

CVE-2026-34350 is a security advisory published by Microsoft Security Response Center (MSRC) with High severity. Windows Storport Miniport Driver Denial of Service Vulnerability

Which CVE IDs does CVE-2026-34350 cover?

CVE-2026-34350 covers the following CVE IDs: CVE-2026-34350. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

What is the CVSS v3 score of CVE-2026-34350?

CVE-2026-34350 has a CVSS v3 base score of 6.5, published by Microsoft Security Response Center (MSRC).

Which products are affected by CVE-2026-34350?

CVE-2026-34350 affects 2 products, including: Windows Server 2025; Windows Server 2025 (Server Core installation).

CVE-2026-34350HighCVSS 6.5

Windows Storport Miniport Driver Denial of Service Vulnerability

Vendor

Microsoft Security Response Center (MSRC)

Published

May 22, 2026

Last Modified

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🔗 CVE IDs covered (1)

CVE-2026-34350 →

📋 Description

Null pointer dereference in Windows Storport Miniport Driver allows an unauthorized attacker to deny service over a network.

🎯 Affected products2

Windows Server 2025
Windows Server 2025 (Server Core installation)

✅ Remediation

KB5087539 (Security Update) — fixed build 10.0.26100.32860 KB5087423 (Security Hotpatch Update) — fixed build 10.0.26100.32772

🔗 References (5)

advisoryhttps://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-34350
patchhttps://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5087539
referencehttps://support.microsoft.com/help/5087539
patchhttps://catalog.update.microsoft.com/v7/site/Search.aspx?q=KB5087423
referencehttps://support.microsoft.com/help/5087423