KEV · Actively exploited
CVE-2025-53770
CRITICAL 9.8
KEV
Microsoft SharePoint Server Remote Code Execution Vulnerability
EPSS
88.54%
exploit likely
percentile 99.5%
CISA Known Exploited Vulnerability
- Added to KEV
- 2025-07-20
- Remediation deadline
- 2025-07-21
- Required action
- 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.
- Ransomware
- Yes, known ransomware campaign