Microsoft August 2026 Security Updates

 

The Microsoft August 2026 security updates have been released and consist of 398 new CVEs and 2 CVEs relating to non-Microsoft products.

Of the Microsoft CVEs released, 62 are rated Critical, 1 moderate, and the rest are rated Important in severity. At the time of release, one is 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, AMD Zen, Azure and Azure Components, GitHub Copilot, Windows Defender, Exchange Server, SharePoint, OneDrive for macOS, Teams, Power BI, .NET and Visual Studio, DHCP Server and Client, DNS Server, and Windows TPM.

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

Recommended Reading:  See Dustin Childs complete review and analysis in Zero Day Initiative -- The August 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 153.0.4 Released

 Mozilla sent Firefox Version 153.0.4 to the release channel. 

From the Release Notes, the update includes the following fix:

Fixed: Firefox becoming unresponsive when clearing browsing history, which could also result in site data being lost. (Bug 2059647)

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 34.3.2 Released with Security Updates

  Pale Moon has been updated to version 34.3.2.  This is a security and bugfix update.

Changes/Fixes:

• Implemented the URL.Parse() convenience function.
• Added multiple bounds checks on internal browser functions to avoid potential out-of-bounds accesses, underflows and overflows. (DiD)
• Fixed several issues with loading and parsing content-supplied fonts.
• Set a bottom limit on the frequency for audio samples to avoid a whole class of potential bugs surrounding audio loading, processing and playback.
  Audio formats with a sample rate below 8kHz (the commonly accepted lowest sample rate of "telephone"/"walkie-talkie" quality) are now rejected.
• Fixed a potential issue in CSS rounded corners with dotted styling.
• Image elements in forms are no longer associated if they are not in the same subtree.
• Made image animation checks more strict to avoid potential issues if decoding would be slow.
• Video region checks are now more strict to avoid issues with malformed video files.
• Updated NSS to 3.90.13.0 (UXP) addressing all applicable security issues from NSS upstream.
  
• Another large security audit of over 200 sec bugs in Mozilla land has been performed, with the vast majority not being applicable to our code base (primarily e10s/IPC bugs).
  
• Security issues addressed: CVE-2026-16353, CVE-2026-16408, CVE-2026-16389 and many others that do not have a CVE designation.

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

Remember - "A day without laughter is a day wasted."