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  3. Critical SharePoint RCE CVE-2026-50522 Under Active Exploitation After Public PoC

The Hacker News

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

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-2026-50522 (CVSS score: 9.8), a critical deserialization of untrusted data in Microsoft Office SharePoint that could allow an unauthorized attacker to execute code over a network. Microsoft credited DEVCORE

Continue with the complete report on the publisher’s website.

Read full article at The Hacker News
T

By The Hacker News

21 July 2026|1 min read
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Cybersecurity, Cryptography & Digital Trust
Critical SharePoint RCE CVE-2026-50522 Under Active Exploitation After Public PoC
Critical SharePoint RCE CVE-2026-50522 Under Active Exploitation After Public PoC
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