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The Register - Software

React2Shell exploitation spreads as Microsoft counts hundreds of hacked machines

Security boffins warn flaw is now being used for ransomware attacks against live networks


Microsoft says attackers have already compromised "several hundred machines across a diverse set of organizations" via the React2Shell flaw, using the access to execute code, deploy malware, and, in some cases, deliver ransomware.


Published: 2025-12-18T11:42:39











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