Medium6.5Vendor: HighMicrosoft Server

Medium [CVE-2026-50508] Windows NTLM Spoofing Vulnerability

This medium-severity Microsoft Server advisory covers CVE-2026-50508 affecting Windows Server 2022, Windows Server,, Windows Server 2016.

CVE-2026-50508 Published Jun 9, 2026

CVE-2026-50508

Affected products & platforms

Microsoft ServerWindows Server

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Summary

Windows NTLM Spoofing Vulnerability

Affected products named by the advisory: Windows Server 2022; Windows Server,; Windows Server 2016; Windows Server 2012; and 1 more.

Affected products named by the advisory: Windows Server 2012 R2.

Affected versions

No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Fixed versions

KB5094128 (build 10.0.20348.5256)
KB5094127 (build 10.0.19045.7417)
KB5093998 (build 10.0.22631.7219)
KB5094122 (build 10.0.14393.9234)
KB5094042 (build 6.2.9200.26132)
KB5094041 (build 6.3.9600.23228)

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Mitigation checklist

Recommended fix / mitigation

Install the applicable security update for your platform: KB5094128, KB5094127, KB5093998, KB5094122, KB5094042, KB5094041 (see the Microsoft Update Catalog).

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Sources

Official and corroborating records used to build this advisory.

Microsoft Security Update Guide (MSRC)official
Official vendor feed — the source of truth for this advisory. VulniPulse polled this feed and parsed this entry from it. Discovered from the machine-readable feed https://api.msrc.microsoft.com/cvrf/v3.0/updates; this link opens the Microsoft Server advisory index instead of the raw feed document.
Microsoft Server
CVE.org CNA affected-product recordCVE.org
Structured CNA affected[] data independently confirmed the affected product scope; native advisory content remains authoritative.
CVE Program

Cross-references

Validate CVE metadata against the authoritative registries.

CVE-2026-50508NVD CVE.org MITRE

Official resources

Microsoft Update Catalog: KB5094128
Official documentation
Direct download of the KB5094128 security update named in the MSRC remediation data for this CVE.
Microsoft Update Catalog: KB5094127
Official documentation
Direct download of the KB5094127 security update named in the MSRC remediation data for this CVE.
Microsoft Update Catalog: KB5093998
Official documentation
Direct download of the KB5093998 security update named in the MSRC remediation data for this CVE.
MSRC Security Update Guide
Official documentation
Filter by this CVE for per-product KB numbers, severity and exploitability assessment.

Discussion(0)

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