IT security researchers are sounding the alarm: A critically rated security vulnerability (CVE-2025-53770, CVSS 9.8) in Microsoft SharePoint allows attackers to access local servers worldwide, with a focus on Germany.
Important security warning: SharePoint vulnerability – urgent action required!
What happened?
- Hackers are attacking local SharePoint instances – dozens of government agencies and companies have already been compromised, including US federal agencies
- Particularly affected: Germany, with over 100 vulnerable servers – second only to the US worldwide
- Consequences: Data and password theft – in some cases even stolen digital keys that can be used to regain access later
Our urgent recommendation:
- Check your local SharePoint instances immediately
- Install the patch released by Microsoft
- Isolate or disable servers that cannot be updated promptly
- Assume that a compromise may already have occurred – contact your cyber insurance crisis service provider for a thorough forensic investigation
Our trusted partner Eye Security, one of the leading IT security companies, is issuing an urgent warning about this vulnerability.
Act now – before it’s too late!
This security vulnerability affects many companies – act now to prevent your SharePoint server from being attacked.
And if something does happen
With our Cyber Protection Plus insurance solution, you are fully protected against the consequences of cyber attacks.
