Patch tracker / CVE reference / CVE-2025-59188

CVE-2025-59188

CVE-2025-59188 is a Microsoft vulnerability that Microsoft rates Important, with a CVSS score of 5.5 (Medium). Microsoft has shipped the fix: deploy one of the 7 updates below from the Microsoft Update Catalog, and see where this CVE sits against the rest on the patch tracker.

Risk summary

Medium
5.5
CVSS v3
6.4%
EPSS, 30 days
Medium
Severity

Not in the CISA KEV catalog. EPSS exploit probability 6.4%. CVSS 5.5 (Medium).

This CVE is among the top half of tracked Microsoft CVEs by EPSS exploit probability.

Senserva AI Opinion for CVE-2025-59188

A second Failover Cluster information disclosure, distinct from CVE-2025-47979, again affects Windows Server 2019, its Core build, and Windows Server 2022 at Critical 9.9 with 6 percent EPSS. Two separate cluster-related bugs shipping in the same window reinforces that clustered server roles deserve focused attention this cycle rather than routine treatment. Both should be resolved by the same set of cumulative updates.

Do this: Treat this as part of the same cluster-focused patch effort as CVE-2025-47979 rather than a separate task.

AI-generated from public data, 2026-07-07. Verify against the vendor advisory before acting.

Senserva AI Opinion and rich prompt for CVE-2025-59188

Copy this prompt into Claude, ChatGPT, or Copilot. The facts are included, sourced from this page.

Schedule normally
No exploitation observed as of 2026-10-14: not in the CISA KEV catalog, EPSS 6%.
Fixed by KB5066586 and 6 more (by build, listed below). Download from the Microsoft Update Catalog, or deploy via Windows Update, Intune, or WSUS.
Do this now: Deploy with your normal update cycle. This page refreshes daily; the verdict changes the day the data does.

Official patch(es) for CVE-2025-59188

Lower priority: patch in your normal cycle. In Intune or Defender, confirm whether the fixing updates KB5066586, KB5066780, KB5066782, KB5066835, KB5066836, KB5066873, KB5066875 are installed across the affected products. Senserva does this automatically across your tenant and flags every missing patch.

Apply the Microsoft security updates below to fix CVE-2025-59188. Each KB page carries the Microsoft Update Catalog download, Microsoft's known issues for the update, a copy-paste PowerShell check for whether it is installed, and the Senserva AI read.

KB5066586KB5066780KB5066782KB5066835KB5066836KB5066873KB5066875

Scope and sources

Affected products
Fixed by the same updates
CVE-2025-24990CVE-2025-59230CVE-2025-47827CVE-2025-49708CVE-2025-58715CVE-2025-58716CVE-2025-58718CVE-2025-59295
Authoritative references
Official CVE record (cve.org)NVD detailMicrosoft MSRCFIRST.org EPSS

Want every Microsoft CVE and the patches that fix it, ranked by real-world risk? See the Microsoft Patch Tracker.

New to a term on this page? CVE, KB, KEV, CVSS, and EPSS are each explained once, on the Senserva security lexicon. Reference: Microsoft CVE and vulnerability management and the Microsoft patching guide.
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