Microsoft 365 Apps Version 2609 Build 20430.20182

Current Channel: Version 2609 (Build 20430.20182) Monthly Enterprise Channel: Version 2609 (Build 20430.20180) Monthly Enterprise Channel: Version 2608 (Build 20326.20232) Monthly Enterprise Channel: Version 2607 (Build 20228.20276) Semi-Annual Enterprise Channel (receives Monthly Enterprise Channel builds): Version 2609 (Build 20430.20178) Semi-Annual Enterprise Channel (receives Monthly Enterprise Channel builds): Version 2608 (Build 20326.20230) Semi-Annual Enterprise Channel (receives Monthly Enterprise Channel builds): Version 2607 (Build 20228.20274) Office 2024 Retail: Version 2609 (Build 20430.20182) Office 2021 Retail: Version 2608 (Build 20326.20232) Office LTSC 2024 Volume Licensed: Version 2408 (Build 17932.21056) Office LTSC 2021 Volume Licensed: Version 2108 (Build 14334.20974) Office 2019 Volume Licensed: Version 1808 (Build 10417.20228) Access CVE-2026-94506 CVE-2026-1028

What changed

Microsoft published the monthly Microsoft 365 Apps security baseline with the affected channels, builds and product CVEs.

Technical details

CVE-2026-94506
CVE-2026-1028

Why it matters

The listed builds and CVEs define the current Office security baseline and must be matched against managed update channels.

Known limitations

Availability, prerequisites and rollout scope remain authoritative in the linked Microsoft documentation.

Now check

Compare deployed Microsoft 365 Apps builds with the listed security builds
Review the product-specific CVEs that apply to the estate
Pilot the affected update channels before broad rollout