CVE-2026-32201
CVE-2026-32201 is a medium-severity vulnerability in Microsoft Sharepoint Server with a CVSS 3.x base score of 6.5. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2026-04-14). The underlying weakness is classified as CWE-20.
Key facts
- Severity: Medium (CVSS 3.x base score 6.5)
- EPSS exploit prediction: 24% (98th percentile)
- Actively exploited: Yes — listed in CISA KEV (added 2026-04-14)
- EU (EUVD) id: EUVD-2026-22587
- EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2026-04-14)
- Weakness: CWE-20
- Affected product: Microsoft Sharepoint Server
- Published:
- Last modified:
Description
Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.
Frequently asked questions
- What is CVE-2026-32201?
- Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.
- How severe is CVE-2026-32201?
- CVE-2026-32201 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is low, integrity low, and availability none.
- Is CVE-2026-32201 being actively exploited?
- Yes. CVE-2026-32201 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2026-04-14, which means active exploitation has been confirmed. It should be prioritised for remediation.
- What products are affected by CVE-2026-32201?
- CVE-2026-32201 primarily affects Microsoft Sharepoint Server. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2026-32201?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.
- Does CVE-2026-32201 have an EU (EUVD) identifier?
- Yes. CVE-2026-32201 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-22587. It is also flagged as exploited in the EUVD (since 2026-04-14).
- When was CVE-2026-32201 published?
- CVE-2026-32201 was published on 2026-04-14 and last updated on 2026-06-17.
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-32201
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-32201
Affected products (3)
- cpe:2.3:a:microsoft:sharepoint_server:*:*:*:*:subscription:*:*:*
- cpe:2.3:a:microsoft:sharepoint_server:2016:*:*:*:enterprise:*:*:*
- cpe:2.3:a:microsoft:sharepoint_server:2019:*:*:*:*:*:*:*
More vulnerabilities in Microsoft Sharepoint Server
- CVE-2013-1330 — Critical (CVSS 10.0): The default configuration of Microsoft SharePoint Portal Server 2003 SP3, SharePoint Server 2007 SP3 and 2010 SP1 and…
- CVE-2020-1595 — Critical (CVSS 9.9): <p>A remote code execution vulnerability exists in Microsoft SharePoint where APIs aren't properly protected from…
- CVE-2020-1210 — Critical (CVSS 9.9): <p>A remote code execution vulnerability exists in Microsoft SharePoint when the software fails to check the source…
- CVE-2026-20963 — Critical (CVSS 9.8): Deserialization of untrusted data in Microsoft Office SharePoint allows an unauthorized attacker to execute code over a…
- CVE-2025-53770 — Critical (CVSS 9.8): Deserialization of untrusted data in on-premises Microsoft SharePoint Server allows an unauthorized attacker to execute…
- CVE-2023-29357 — Critical (CVSS 9.8): Microsoft SharePoint Server Elevation of Privilege Vulnerability
All CVEs affecting Microsoft Sharepoint Server →
Other CWE-20 (Improper Input Validation) vulnerabilities
- CVE-2026-48316 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
- CVE-2026-48281 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
- CVE-2026-48277 — Critical (CVSS 10.0): ColdFusion versions 2025.9, 2023.20 and earlier are affected by an Improper Input Validation vulnerability that could…
- CVE-2026-48055 — Critical (CVSS 10.0): Streambert is a cross-platform Electron Desktop App to stream and download any video media. In versions 2.4.0 and…
- CVE-2026-34910 — Critical (CVSS 10.0): A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi OS…
- CVE-2026-33587 — Critical (CVSS 10.0): Lack of user input sanitisation in Open Notebook v1.8.3 allows the application user to execute Python code (and…
Browse all CWE-20 (Improper Input Validation) vulnerabilities →