[ CVE-2026-32201 · Published 14 Apr 2026 ]
Microsoft SharePoint Server Improper Input Validation Vulnerability
Exploited · CISA KEV CVSS 6.5
EPSS 43%No fix listed yet
[ Why it matters ]Priority signals
- Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2026-04-14
- EPSS: 43% chance of exploitation in the next 30 days (higher than 99% of CVEs)
[ Description ]Official description
Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.
CISA: Microsoft SharePoint Server contains an improper input validation vulnerability that allows an unauthorized attacker to perform spoofing over a network.
[ Fixes ]Fixes and patches
CISA required action (US federal deadline 28 Apr 2026): Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.
[ References ]References
- msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32201Vendor Advisory
- www.cisa.gov/known-exploited-vulnerabilities-catalogThird Party AdvisoryUS Government Resource