Rapid7 Uses LLM to Uncover Critical SharePoint Exploit Chain

Microsoft SharePoint is widely used by companies and government agencies to manage documents and internal collaboration, making server-side flaws a potentially valuable entry point into corporate networks. Cybersecurity firm Rapid7 used a large language model, or LLM, to help identify an exploit chain capable of bypassing authentication and achieving remote code execution, underscoring AI’s expanding role in vulnerability research.

Rapid7 said two SharePoint security flaws could be chained to let an unauthenticated attacker remotely execute arbitrary code on a vulnerable server. Microsoft has confirmed the critical exploit path and is rolling out security updates. Organizations operating on-premises SharePoint servers should apply the relevant patches promptly, as successful exploitation could give attackers control of the affected system and expose connected data and services.