CISA flags active exploitation of Microsoft SharePoint RCE patched in May
Source headline: CISA: Microsoft SharePoint RCE flaw now actively exploited
Intelligence Summary
CISA says a high-severity Microsoft SharePoint remote code execution flaw, fixed in May, is now being actively exploited. Attackers can leverage the vulnerability to run code on affected systems. The issue impacts organizations using vulnerable SharePoint deployments. Exploitation increases the likelihood of follow-on compromise such as data theft or persistence. Admins should confirm the May patch has been applied and review exposure in edge and internet-facing SharePoint environments.
Recommended Action
Inventory where SharePoint runs in your environment and treat this as an active remediation item. Until then, watch authentication and outbound traffic logs for the indicators described in the source. This signal rests on a single report, so corroborate it before acting on anything irreversible.