Microsoft Patch Tuesday: dates, versions & actively exploited flaws
Microsoft Patch Tuesday is the second Tuesday of the month. patchletter shows the current versions of the Microsoft products it tracks and which of their flaws are already being actively exploited according to CISA.
Actively exploited at Microsoft (CISA KEV)
If a tracked Microsoft product currently appears in the CISA KEV catalog with an actively exploited vulnerability, you will find it here.
Source: CISA KEV · updated daily
Current Microsoft versions
35 Microsoft products tracked by patchletter and their currently detected version.
All Patch Tuesday details
patchletter does not track individual Patch Tuesday CVEs — the full, rated list lives in the official Microsoft Security Update Guide. We show you what got updated and what is already being actively exploited.
Microsoft Security Update Guide (MSRC) →Frequently asked questions
What is Microsoft Patch Tuesday?
Patch Tuesday is the second Tuesday of each month, when Microsoft releases its bundled security updates for Windows, Office, Exchange and other products. Admins plan their patching around this date.
When is the next Patch Tuesday?
The next Microsoft Patch Tuesday is 10/11/2026. It always falls on the second Tuesday of the month.
Does patchletter show every Patch Tuesday CVE?
No. patchletter shows the current versions of the Microsoft products it tracks and which of their vulnerabilities are actively exploited (CISA KEV). The complete list of every CVE is in Microsoft's Security Update Guide.
What does patchletter cost?
The update email costs nothing: subscribe to your Microsoft tools with just an email address and get notified when a new version ships. Alert emails about actively exploited vulnerabilities are part of Pro. Everything shown on this page reads without an account.
Never miss a Microsoft update
Subscribe to your Microsoft tools and get an email the moment a new version ships. Update emails are free; alert emails about actively exploited flaws are part of Pro — the list above reads without an account.