CVE-2026-32201 (GCVE-0-2026-32201)

Vulnerability from cvelistv5 – Published: 2026-04-14 16:58 – Updated: 2026-06-19 16:08
VLAI CISA KEV KEVintel KEV
Title
Microsoft SharePoint Server Spoofing Vulnerability
Summary
Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.
Severity
6.5 (Medium)
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
SSVC
Exploitation: active Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-20 - Improper Input Validation
Assigner
References
Impacted products
Date Public
2026-04-14 14:00
CISA KEV
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: 6900f11f-52e4-4aca-ba00-96d6ca32b39a

Vulnerability ID: CVE-2026-32201

Status: Confirmed

Status Updated: 2026-04-14 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2026-04-14
Asserted: 2026-04-14
Scope
Notes: KEV entry: Microsoft SharePoint Server Improper Input Validation Vulnerability | Affected: Microsoft / SharePoint Server | Description: Microsoft SharePoint Server contains an improper input validation vulnerability that allows an unauthorized attacker to perform spoofing over a network. | Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. | Due date: 2026-04-28 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): https://msrc.microsoft.com/update-guide/en-US/vulnerability/CVE-2026-32201 ; https://nvd.nist.gov/vuln/detail/CVE-2026-32201
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-20
Feed CISA Known Exploited Vulnerabilities Catalog
Product SharePoint Server
Due Date 2026-04-28
Date Added 2026-04-14
Vendorproject Microsoft
Vulnerabilityname Microsoft SharePoint Server Improper Input Validation Vulnerability
Knownransomwarecampaignuse Unknown
References
Created: 2026-04-14 18:00 UTC | Updated: 2026-04-14 18:00 UTC
KEVintel KEV
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: c756faa3-4da9-4385-a9a9-0c143cf49501

Vulnerability ID: CVE-2026-32201

Status: Confirmed

Status Updated: 2026-06-01 13:07 UTC

Exploited: Yes

Timestamps
First Seen: 2026-06-01
Asserted: 2026-06-01
Scope
Notes: KEVIntel entry: Microsoft SharePoint Server Spoofing Vulnerability | Affected: Microsoft / Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019, Microsoft SharePoint Server Subscription Edition | CVSS: 6.5 (MEDIUM) | EPSS: 0.24172 | Used in malware: unknown | Not yet in CISA KEV: False
Evidence

Type: Public Report

Signal: Successful Exploitation

Confidence: 70%

Source: kevintel

Details
Feed KEVIntel (kevintel.com)
Title Microsoft SharePoint Server Spoofing Vulnerability
Vendor Microsoft
Product Microsoft SharePoint Enterprise Server 2016, Microsoft SharePoint Server 2019, Microsoft SharePoint Server Subscription Edition
Added Date 2026-06-01T13:07:19.548Z
Cvss Score 6.5
Epss Score 0.24172
Cvss Severity MEDIUM
Epss Percentile 0.97571
Used In Malware unknown
Ahead Of Cisa Kev 
{
  "count": 1,
  "unit": "day"
}
Not Yet In Cisa Kev False
References
Created: 2026-06-19 12:45 UTC | Updated: 2026-06-19 12:45 UTC
Show details on NVD website
To clipboard 

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Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.