CVE-2026-32201: Microsoft SharePoint Server Spoofing Vulnerability

Medium severity · published Apr 14, 2026

CVE-2026-32201

Microsoft SharePoint Server Spoofing Vulnerability

In wildKEV

6.5

CVSS

43.4%

EPSS

Yes

On KEV

Description

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

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Attack vector

Network

Complexity

Low

Privileges

None

User interaction

None

Confidentiality

Low

Integrity

Low

Availability

None

Scope

Unchanged

Exploitation

Is it being used?

Exploit prediction (EPSS)43.4% · higher than 99% of CVEs

Exploited in the wildYes

CISA KEVListed Apr 14, 2026

Federal remediation dueApr 28, 2026

Ransomware campaign useNot known

Affected products

Which versions

SharePoint · Microsoft

before 16.0.19725.20210; 2016; 2019 · source: NVD, KEV

Microsoft SharePoint Enterprise Server 2016 · Microsoft

16.0.0 before 16.0.5548.1003 · source: vendor

Microsoft SharePoint Server 2019 · Microsoft

16.0.0 before 16.0.10417.20114 · source: vendor

Microsoft SharePoint Server Subscription Edition · Microsoft

16.0.0 before 16.0.19725.20210 · source: vendor

In the news

VulnerabilityMedium

[CISA KEV] CVE-2026-32201: Microsoft SharePoint Server - Microsoft SharePoint Server Improper Input Validation Vulnerability

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

SSSharePoint ServerCVE-2026-32201

Apr 14, 2026·CISA KEV

Affected product

SharePoint

Microsoft

All SharePoint CVEs

References

NVD

https://nvd.nist.gov/vuln/detail/CVE-2026-32201

CVE.org

https://www.cve.org/CVERecord?id=CVE-2026-32201

CISA KEV catalogue

https://www.cisa.gov/known-exploited-vulnerabilities-catalog

vendor-advisory

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32201