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Medium 6.5Known exploited (CISA KEV)Published Apr 14, 2026
CVE-2026-32201Microsoft SharePoint Server Spoofing Vulnerability
Updated under an hour ago ()
Does this affect you?
It affects Microsoft SharePoint Enterprise Server 2016 and 3 other products. Add what you run to find out whether that includes you.
CISA lists it as known exploited since Apr 14, 2026; federal agencies had to remediate by Apr 28, 2026. Treat that date as your deadline.
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Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.
- CVSS
- 6.5 MEDIUM (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:F/RL:O/RC:C
- Weakness (CWE)
- CWE-20
- Known exploited
- Added to CISA KEV Apr 14, 2026; federal remediation due Apr 28, 2026Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- EPSS (exploitation in the next 30 days)
- 43.38% (percentile 99)
- Assigned by
- microsoft
- NVD analysis
- Analyzed
- Record last updated
- Oct 15, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Microsoft Microsoft SharePoint Enterprise Server 2016 microsoft:sharepoint_enterprise_server_2016 (from the name) | from 16.0.0 before 16.0.5548.1003 | CNA record |
Microsoft Microsoft SharePoint Server 2019 microsoft:sharepoint_server_2019 (from the name) | from 16.0.0 before 16.0.10417.20114 | CNA record |
Microsoft Microsoft SharePoint Server Subscription Edition microsoft:sharepoint_server_subscription_edition (from the name) | from 16.0.0 before 16.0.19725.20210 | CNA record |
microsoft sharepoint_server microsoft:sharepoint_server | before 16.0.19725.20210; 2016; 2019 | NVD |
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32201vendor-advisory, patch
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-32201third-party-advisory, us-government-resource
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.