CVE-2026-32201

Timeline

Detection, updates, and resolution for this record.

1. Apr 14, 2026 · Catalog

   Detected

   Microsoft SharePoint Server contains an improper input validation vulnerability that allows an unauthorized attacker to perform spoofing over a network.

2. Apr 14, 2026 · CISA KEV

   Known exploited

   Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

3. Apr 28, 2026 · CISA KEV

   Remediation due

   Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

4. Jun 17, 2026 · Catalog

   Updated

   Microsoft SharePoint Server contains an improper input validation vulnerability that allows an unauthorized attacker to perform spoofing over a network.

Affected

• cpe microsoft/sharepoint serverversion unspecified
• cpe microsoft/sharepoint server2016
• cpe microsoft/sharepoint server2019
• vendor Microsoft SharePoint Serverversion unspecified

Sources

• CISA KEVCVE-2026-32201

  Microsoft SharePoint Server contains an improper input validation vulnerability that allows an unauthorized attacker to perform spoofing over a network.

  cisa.gov
• CVE.orgCVE-2026-32201

  Official CVE identifier

  cve.org
• FIRST EPSSCVE-2026-32201

  30-day exploitation probability 43.4%

  first.org
• NIST NVDCVE-2026-32201

  Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.

  nvd.nist.gov

References

• CISA note · msrc.microsoft.com
• Vendor Advisory · msrc.microsoft.com
• CISA note · nvd.nist.gov
• Third Party Advisory · cisa.gov