CVE-2026-32201
medium CISA KEVMicrosoft SharePoint Server Improper Input Validation Vulnerability
Vendor / product: Microsoft — SharePoint Server
Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.
CVSS
6.5
6.5 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N Severity source: NVD CVSS v3.1 (nvd@nist.gov)
Timeline (UTC)
Published: 2026-04-14 18:17
Modified: 2026-10-26 22:10
NVD status: Analyzed
Last synced 1 day ago
Verified against the source API 2026-10-27 07:07 UTC
Exploitation
Listed in CISA KEV
Added 2026-04-14 · due 2026-04-28
Known ransomware use: Unknown
Required action (CISA)
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
Affected products
microsoft / sharepoint_server <16.0.19725.20210, 2016, 2019
Weakness classification (CWE)
CWE-20 NVD-CWE-noinfo
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32201
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32201 secure@microsoft.com
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-32201 134c704f-9b21-4f2e-91b3-4a467353bcc0
Data sources
CISA KEV — fetched 2026-10-27 06:50 UTC · record ↗
NVD CVE API 2.0 — fetched 2026-10-27 07:07 UTC · record ↗