Patch tracker / CVE reference / CVE-2025-50169

CVE-2025-50169

CVE-2025-50169 is a Microsoft vulnerability that Microsoft rates Important, with a CVSS score of 7.5 (High). Its EPSS score puts the probability of exploitation in the next 30 days at 51%. Microsoft has shipped the fix: deploy one of the 2 updates below from the Microsoft Update Catalog, and see where this CVE sits against the rest on the patch tracker.

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Microsoft rates it Important. CVSS 7.5 (High). Fixed by 2 Microsoft security updates.

Senserva AI read on CVE-2025-50169Official patches for CVE-2025-50169Change historyAdmin questions

Risk summary

High
7.5
CVSS v3
51%
EPSS, 30 days
High
Severity

Not in the CISA KEV catalog. EPSS exploit probability 51%. CVSS 7.5 (High).

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

Senserva AI Opinion for CVE-2025-50169

A remote code execution flaw in Windows SMB rated Critical at CVSS 9.8 with a 36 percent exploit probability, and the affected platforms are current: Windows Server 2025 Server Core and Windows 11 24H2 on both architectures. SMB RCE is the vulnerability class behind the most damaging worms in Windows history, and this one lives in your newest builds rather than legacy stragglers. A 36 percent EPSS on an SMB code execution bug deserves out-of-cycle attention.

Do this: Patch Windows Server 2025 and Windows 11 24H2 systems now and double-check that port 445 is not exposed to the internet anywhere.

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

Patch this cycle
Not confirmed exploited yet, but the 30-day exploit probability is high (EPSS 51%).
Fixed by KB5063878 and 1 more (by build, listed below). Download from the Microsoft Update Catalog, or deploy via Windows Update, Intune, or WSUS.
Do this now: Patch in this maintenance window; do not let it slip to the next one.
Senserva AI Opinion and rich prompt for CVE-2025-50169

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

Official patch(es) for CVE-2025-50169

High priority: EPSS puts the odds of near-term exploitation high. In Intune or Defender, confirm whether the fixing updates KB5063878, KB5064010 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-2025-50169. 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.

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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