CISA Known Exploited Vulnerability (KEV)
Microsoft SharePoint Improper Authentication Vulnerability
July 22, 2025
July 23, 2025
Disconnect public-facing versions of SharePoint Server that have reached their end-of-life (EOL) or end-of-service (EOS) to include SharePoint Server 2013 and earlier versions. For supported versions, please follow the mitigations according to CISA (URL listed below in Notes) and vendor instructions (URL listed below in Notes). Adhere to the applicable BOD 22-01 guidance for cloud services or discontinue use of the product if mitigations are not available.
Description
Improper authentication in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.
References
Weakness Enumeration
| CWE-ID | CWE Name |
|---|---|
|
CWE-287 |
Improper Authentication |