Microsoft Fixes Broken Copy-and-Paste for Excel 2016 Users
ID: b6838f75-6b84-5493-91e3-bd6328d986dd
STIX ID: report--b6838f75-6b84-5493-91e3-bd6328d986dd
Feed Name: CosmicBytez Labs
Threat Score
Microsoft's September 2026 security update KB5002914 introduced a silent regression that broke copy-and-paste, autofill, and formula dragging in Excel 2016, 2019, 2021, 2024, and Excel Online; Microsoft issued KB5002655 on 2026-09-18 to fix the issue for MSI-based Office 2016 only, and recommends installing that patch where available or using Paste Special as a temporary workaround (uninstalling KB5002914 restores functionality but removes the security fixes).
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