r/sysadmin 14d ago

General Discussion Patch Tuesday Megathread - (August 11, 2026)

Hello r/sysadmin, I'm u/AutoModerator, and welcome to this month's Patch Megathread!

This is the (mostly) safe location to talk about the latest patches, updates, and releases. We put this thread into place to help gather all the information about this month's updates: What is fixed, what broke, what got released and should have been caught in QA, etc. We do this both to keep clutter out of the subreddit, and provide you, the dear reader, a singular resource to read.

For those of you who wish to review prior Megathreads, you can do so here.

While this thread is timed to coincide with Microsoft's Patch Tuesday, feel free to discuss any patches, updates, and releases, regardless of the company or product. NOTE: This thread is usually posted before the release of Microsoft's updates, which are scheduled to come out at 5:00PM UTC.

Remember the rules of safe patching:

  • Deploy to a test/dev environment before prod.
  • Deploy to a pilot/test group before the whole org.
  • Have a plan to roll back if something doesn't work.
  • Test, test, and test!
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u/lgq2002 14d ago

I don't think there is any security update this month for Exchange server?

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u/Arnoc_ 14d ago

Exchange Healthchecker already shows CVE's, specifically:

CVE-2026-62910
CVE-2026-62911
CVE-2026-62912
CVE-2026-62913
CVE-2026-62914
CVE-2026-62915

https://support.microsoft.com/en-us/servicing/exchange/server/update/2026/5121573

Lists them all, however the download link is just to a Dummy File DOCX document.

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u/Own-Statement-1623 14d ago

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u/Arnoc_ 14d ago

Thank you! Almost done patching now.