Actively exploited
Listed in CISA’s Known Exploited Vulnerabilities catalog since July 22, 2025.
CVE-2025-49706
Microsoft SharePoint Improper Authentication Vulnerability
Added to KEV July 22, 2025
Alert details
- Source feed
- CISA KEV
- CVE ID
- CVE-2025-49706
- CWE
- CWE-287
- Affected products
- SharePoint · Microsoft SharePoint · Microsoft
What happened
Microsoft SharePoint contains an improper authentication vulnerability that allows an authorized attacker to perform spoofing over a network. Successfully exploitation could allow an attacker to view sensitive information and make some changes to disclosed information. This vulnerability could be chained with CVE-2025-49704. CVE-2025-53771 is a patch bypass for CVE-2025-49706, and the updates for CVE-2025-53771 include more robust protection than those for CVE-2025-49706.
What it means for your business
Microsoft SharePoint is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2025-49706). Microsoft SharePoint contains an improper authentication vulnerability that allows an authorized attacker to perform spoofing over a network. Successfully exploitation could allow an attacker to view sensitive information and make some changes to disclosed information. This vulnerability could be chained with CVE-2025-49704. CVE-2025-53771 is a patch bypass for CVE-2025-49706, and the updates for CVE-2025-53771 include more robust protection than those for CVE-2025-49706. CISA remediation due date: 2025-07-23. If you need help checking exposure, call (864) 335-9223.
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.
CISA due date: July 23, 2025
Sources
Related briefs
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