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Critical SharePoint RCE CVE-2026-50522 Under Active Exploitation After Public PoC - The Hacker News

Reported by The Hacker News | July 21, 2026, 2:57 pm

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watchTowr reports active exploitation of SharePoint CVE-2026-50522 after a public PoC, with attackers stealing machine keys for persistence.

A third SharePoint Server flaw patched by Microsoft as part of its Patch Tuesday update for July 2026 has come under active exploitation, per watchTowr.
The vulnerability in question is CVE-2026-505…

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