The Point: CISA confirms active exploitation of a critical SharePoint RCE vulnerability in the wild, despite a patch being available since May.
The US Cybersecurity and Infrastructure Security Agency (CISA) warns of active attacks on a Microsoft SharePoint vulnerability that was already patched in May. The remote code execution flaw is considered highly critical.
CISA has documented active attacks on a critical-severity remote code execution vulnerability in Microsoft SharePoint since Wednesday. The vulnerability has been patched since May, but is now being actively exploited in attacks.
For CISOs, this represents an immediate high risk: unpatched SharePoint instances allow attackers full code execution on servers. This is particularly critical because SharePoint is often integrated with sensitive business data and internal systems. Successful exploitation can lead to data loss, lateral movement, and network compromise.
The widespread deployment of SharePoint in enterprise environments and the fact that a patch has been available for months suggest that many organizations have not yet applied it. Immediate action is required to audit the patch status of all SharePoint deployments and evaluate potential anomalies in SharePoint logs for signs of exploitation attempts.
Source: www.bleepingcomputer.com · Published 2 July 2026
Lumi AI News — AI-assisted curation pursuant to Article 50 EU AI Act. Paraphrase and classification by Lumi News Pipeline v1.7.2.