CVE-2025-49706: Microsoft SharePoint Server Spoofing Vulnerability
In CISA’s Known Exploited Vulnerabilities catalog: Microsoft SharePoint Improper Authentication Vulnerability.
Added , federal remediation due . Known ransomware use: Known.
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.
Description
Improper authentication in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:F/RL:O/RC:C · CWE-287
Status incidents that name it
No tracked status incident names this CVE.
Affected vendors and products
Microsoft: Microsoft SharePoint Enterprise Server 2016Microsoft: Microsoft SharePoint Server 2019Microsoft: Microsoft SharePoint Server Subscription Edition
References
- CVE record on cve.org (opens in new tab)
- NVD entry (opens in new tab)
- msrc.microsoft.com/update-guide/vulnerability/CVE-2025-49706 (opens in new tab)
- CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (opens in new tab)
- This product uses data from the NVD API but is not endorsed or certified by the NVD. (opens in new tab)
- Known Exploited Vulnerabilities catalog from CISA. (opens in new tab)
- EPSS scores from FIRST (Exploit Prediction Scoring System). (opens in new tab)