Microsoft June 2026 Security Updates

 

The Microsoft June 2026 security updates have been released and consist of 208 new CVEs to Microsoft products. 

Of the Microsoft CVEs released, 39 are rated Critical, 167 are rated Important and the rest are rated Low in severity. At the time of release, three are listed as publicly known and one as being actively exploited.

The security updates apply to the following products, features and roles: Windows and Windows components, Office and Office Components, Microsoft Edge (Chromium-based), Azure, .NET and Visual Studio, Github Copilot, Defender, Exchange Server, Hyper-V, Secure Boot, and BitLocker.

Information regarding known issues with KBs included in the security updates can be found at the bottom of the page at June 2026 Security Updates - Release Notes - Security Update Guide - Microsoft.

Recommended Reading:  See Dustin Childs complete review and analysis in Zero Day Initiative -- The June 2026 Security Update Review.

Additional Update Notes:

• Windows 10 -- See Windows 10 Extended Security Updates (ESU).
• Servicing Stack Updates -- Microsoft now combines the latest servicing stack update (SSU) for your operating system with the Latest Cumulative Updates (LCU). For general information about SSUs, see Servicing stack updates and Servicing Stack Updates (SSU): Frequently Asked Questions.
  
• Windows updates are cumulative. The monthly security release includes all security fixes for vulnerabilities that affect Windows, in addition to non-security updates. The updates are also available via search for the KB number in the Microsoft Update Catalog.
• For information on lifecycle and support dates for Windows 11 operating systems, please see Windows 11 Home and Pro.
• Windows Update History:  Windows 11, Windows 10

 

References

• Security Update FAQ
• Security Updates Guide

Remember - "A day without laughter is a day wasted."
May the wind sing to you and the sun rise in your heart...

Mozilla Firefox Version 151.0.4 Released

 Mozilla sent Firefox Version 151.0.4 to the release channel. 

The update includes four fixes affecting the operation of the browser. To review the fixes, see the Release Notes.

Update:  To get the update now, select "Help" from the Firefox menu and pick "About Firefox".  Mac users need to select "About Firefox" from the Firefox menu.  If you do not use the English language version, Fully Localized Versions are available for download.

Rapid Release Calendar

Remember - "A day without laughter is a day wasted."
May the wind sing to you and the sun rise in your heart...

Pale Moon Version 34.3.0 Released with Security Updates

  Pale Moon has been updated to version 34.3.0.  This is a major development, bugfix and security release.

The update includes a long list of both New Features as well as Changes/fixes.  In addition, 18 potential vulnerabilities were found applicable and fixed.  Another 18 issues had *DiD code changes applied, and 4 were already mitigated before being reported. Of the reported security bugs, 150 were not applicable to Pale Moon code (with a good portion once again pertaining to e10s/multi-process browser architectures).

Notes:

*DiD: This means that a fix is "Defense-in-Depth": It is a fix that does not apply to a (potentially) actively exploitable vulnerability in Pale Moon, but prevents future vulnerabilities caused by the same code, e.g. when surrounding code changes, exposing the problem, or when new attack vectors are discovered.

Pale Moon includes both 32- and 64-bit versions for Windows: Pale Moon for Windows downloads.

Update: To get the update now, select "Help" from the Pale Moon menu at the upper left of the browser window.  Select About Pale Moon > Check for Updates.

Release Notes
Release Cycle

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