Microsoft Excel KB5002914 Update Induces Copy-and-Paste Failures
Security patch disrupts core spreadsheet functionality; users report workflow disruption
Key Takeaways
- KB5002914, released 2026-09-10, causes copy-and-paste and formula dragging failures in Microsoft Excel.
- Affected users restore functionality by uninstalling or rolling back the update.
- No active exploitation of a security vulnerability has been reported; the issue is a functional regression.
- Microsoft has not published a fixed version of KB5002914 at the time of reporting.
- Users and administrators are advised to monitor official Microsoft channels for a permanent fix.
Quick answers
- What happened?
- Microsoft Excel users report that the KB5002914 Office security update, released on 2026-09-10, is breaking copy-and-paste operations and formula dragging. Affected users state that removing or rolling back the update restores normal functionality. No active exploitation of a security vulnerability has been reported; the issue is a functional regression caused by the update.
- Which products are affected?
- Microsoft Excel
- What should defenders do?
- Users experiencing issues are advised to uninstall the KB5002914 update or roll back to a previous version until Microsoft releases a corrected patch. IT administrators should monitor Microsoft security bulletins for an official fix. Workarounds may include using alternative methods for data transfer outside of Excel until functionality is restored.
Microsoft Excel users have reported that the KB5002914 Office security update, published on 2026-09-10, is disrupting copy-and-paste operations and formula dragging within spreadsheets. According to BleepingComputer and user forum reports, the issues emerged shortly after the update's deployment. Removing or rolling back the update restores normal functionality for affected users. Microsoft has not yet released a fixed version of KB5002914. The issue is classified as an update-induced functional regression rather than an actively exploited security vulnerability. IT administrators are monitoring user reports and awaiting an official Microsoft advisory or patch.
Security Details
The KB5002914 update, intended to address Office security concerns, has induced a functional regression affecting core Excel operations such as copy-and-paste and formula dragging. The root cause has not been officially identified by Microsoft. No security vulnerability is being actively exploited; the disruption is due to the update itself.
Affected products
Microsoft Excel
Mitigation
Users experiencing issues are advised to uninstall the KB5002914 update or roll back to a previous version until Microsoft releases a corrected patch. IT administrators should monitor Microsoft security bulletins for an official fix. Workarounds may include using alternative methods for data transfer outside of Excel until functionality is restored.
Sources
BleepingComputer
Microsoft Excel KB5002914 update breaks copy and paste for some users
Sep 10, 2026 · 19:07
Original link
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