Newsletter Archives
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MS-DEFCON 3: Cleanup time
ISSUE 22.16.1 • 2025-04-22 By Susan Bradley
After every Patch Tuesday, there is a period I call “cleanup time.”
By the end of the week, side effects start to pop up. Even though Microsoft does not usually document its patches well, we at least know which updates have been released and have had a chance to read through the release notes.
This time, side effects appear to be widespread. I have therefore set the MS-DEFCON level to 3. Patch as necessary but check your results carefully.
Anyone can read the full MS-DEFCON Alert (22.16.1, 2025-04-22).
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April’s deluge of patches
PATCH WATCH
By Susan Bradley
It’s a good thing we no longer receive individual updates fixing each unique vulnerability. If we did, we’d be calling “uncle” right about now.
Historically, the number of patches released each April tends to be large. I attribute this to the final end of the holiday slump, when the folks at Microsoft are back up to full steam and working on fixes with gusto.
This time around, there are 124 vulnerabilities in Windows, Office, Azure, .NET, Visual Studio, BitLocker, Kerberos, Windows Hello, OpenSSH, and Windows’ Lightweight Directory Access Protocol (LDAP).
Read the full story in our Plus Newsletter (22.15.0, 2025-04-14).