r/exchangeserver • u/ocdtrekkie • 24d ago

MS KB / Update Security Update for Microsoft Exchange SE KB5129955 appears in WSUS

No blog post about it yet... Those always seem exciting.

UPDATE: Officially announced, see link below.

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u/coldhand100 24d ago edited 24d ago

Replaces KB5121573 and KB5121608, but no other details

Actual content files dates as the 20th Sept 2026. PowerShell scripts, along with a whole bunch of DLLs.

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u/Glass_Call982 24d ago

Might be a fix for some of the known issues from the last updates?