Actively exploited
Listed in CISA’s Known Exploited Vulnerabilities catalog since April 14, 2026.
CVE-2026-32201
Microsoft SharePoint Server Improper Input Validation Vulnerability
Added to KEV April 14, 2026
Alert details
- Source feed
- CISA KEV
- CVE ID
- CVE-2026-32201
- CWE
- CWE-20
- Affected products
- SharePoint Server · Microsoft SharePoint Server · Microsoft
What happened
Microsoft SharePoint Server contains an improper input validation vulnerability that allows an unauthorized attacker to perform spoofing over a network.
What it means for your business
Microsoft SharePoint Server is listed in CISA's Known Exploited Vulnerabilities catalog (CVE-2026-32201). Microsoft SharePoint Server contains an improper input validation vulnerability that allows an unauthorized attacker to perform spoofing over a network. CISA remediation due date: 2026-04-28. If you need help checking exposure, call (864) 335-9223.
Required action
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
CISA due date: April 28, 2026
Sources
Related briefs
Microsoft PowerShell Security Feature Bypass vulnerability
Microsoft PowerShell Security Feature Bypass vulnerability (CVE-2026-70338) was added to Microsoft’s security update guidance. Acknowledgement Updated If you need help checking exposure, call (864) 335-9223.
Microsoft Windows Cross Device Service Elevation of Privilege vulnerability
Microsoft Windows Cross Device Service Elevation of Privilege vulnerability (CVE-2026-66804) was added to Microsoft’s security update guidance. Acknowledgement Updated If you need help checking exposure, call (864) 335-9223.
Windows iSCSI Target Service Remote Code Execution vulnerability
Windows iSCSI Target Service Remote Code Execution vulnerability (CVE-2026-65791) was added to Microsoft’s security update guidance. Acknowledgement Updated If you need help checking exposure, call (864) 335-9223.
Microsoft Fabric Data Warehouse Remote Code Execution vulnerability
Microsoft Fabric Data Warehouse Remote Code Execution vulnerability (CVE-2026-56642) was added to Microsoft’s security update guidance. Updated the Security Updates table by removing an affected software entry. No user action is required. This is an informational change only. If you need help checking exposure, call (864) 335-9223.
Need help patching?
PremierePC monitors KEV alerts for managed clients and helps teams prioritize remediation before attackers do.