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SharePoint deserialization flaw used to steal machine keys and sustain access after patching

1 min read
Source: BleepingComputer
SharePoint deserialization flaw used to steal machine keys and sustain access after patching
Photo: BleepingComputer
TL;DR Summary

Security researchers warn that the critical SharePoint deserialization flaw CVE-2026-50522 is being exploited to steal machine keys, enabling attackers to forge tokens and linger on-premises deployments even after patches; PoC exploits circulated online, prompting defenders to apply July updates and rotate credentials to limit exposure.

Topics:technology#credential-rotation#cve-2026-50522#deserialization#remote-code-execution#security#sharepoint
Share this article
  1. Critical SharePoint RCE flaw exploited to steal machine keys  BleepingComputer
  2. Critical SharePoint RCE CVE-2026-50522 Under Active Exploitation After Public PoC  The Hacker News
  3. Fourth SharePoint Vulnerability Exploited in Past Month’s Wave of Attacks  SecurityWeek
  4. Microsoft SharePoint under attack via new exploit  Cybersecurity Dive
  5. From Web Request to Domain Compromise: Understanding the July 2026 SharePoint Attacks  Resecurity

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