Microsoft Office Zero-Day (CVE-2026-21509)

+7

Just a heads up, there is a Zero Day in Microsoft Office.

More info:

The good news is that if running Office 2021 and later, only a restart of Office Apps is required to mitigate the issue.

Anything older will need Registry entries set:

+22

Thanks for sharing Dipen. Thankfully..it appears only a restart is needed for me & my org. 🙌🏻

Hope you’re well!

Shane Williford - Veeam VMCA/VMCE | Veeam Legend | VUG Leader | VCP-DCV | Twitter: @coolsport00

+21

Wow a zero day for Office. Time to check and do what is required to mitigate it.

+8

Thanks for sharing Dipen.

+7

Thanks for sharing Dipen. Thankfully..it appears only a restart is needed for me & my org. 🙌🏻

Hope you’re well!

Hey Shane,

All good thank you! I’ve been MIA due to other commitments but hoping to come back once things calm down.

Hope you are keeping well!

Dipen

Dipen N. K. | IT Security Specialist | Veeam Legend 2022 - 2025 | Former Cyber Security Space VUG Leader

+22

Hopefully things calm down for you soon. Yessir...I’m doing well. Thank you for asking.

Best.

Shane Williford - Veeam VMCA/VMCE | Veeam Legend | VUG Leader | VCP-DCV | Twitter: @coolsport00

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