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Patch Tuesday / Security / vulnerabilities

Pwn a CEO with a single email? Patch Tuesday brings nasty zero-click Outlook bug

Redmond "lists this as a Microsoft Word bug, which may or may not be entirely accurate... it is a genuine Outlook 0-click RCE"

By Edward Targett

Updated May 13, 2026 7:15 AM / Published May 12, 2026 9:23 PM 4 min read

Pwn a CEO with a single email? Patch Tuesday brings nasty zero-click Outlook bug

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Edward Targett

Ed is a co-founder of The Stack. He previously edited Computer Business Review. He has also covered energy markets. He started his journalism career on local papers. He left school at 15 and has made a living asking "but why?" ever since.