Cybersecurity · 44 views
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.
AI Summary
A critical vulnerability in Microsoft's SharePoint Server has been identified as actively exploited by attackers. The vulnerability, CVE-2026-50522, is a remote code execution (RCE) flaw that allows unauthorized access to execute code over a network. This is due to a deserialization of untrusted data in Microsoft Office SharePoint. Microsoft has credited DEVCORE with discovering the issue, which was patched as part of the company's July 2026 Patch Tuesday update. The vulnerability's CVSS score is 9.8, indicating a high level of severity.
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