Read the docs
TI-2023-16311 Aliases CVE-2023-33132GHSA-8285-rc43-48p3

Microsoft SharePoint Server Spoofing Vulnerability

Priority LOW 30CWE-79Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
Spoofing
Confidentiality · integrity · availability
High · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Microsoft. Impact type from Microsoft.

Summary

Microsoft SharePoint Server Spoofing Vulnerability

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00882 59th percentileScored 2026-11-07
Fix Fixed Microsoft: 3 updates

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
MicrosoftMicrosoft SharePoint Server 201916.0.0 to before 16.0.10399.2000516.0.10399.20005Patch availableCNA
MicrosoftMicrosoft SharePoint Server Subscription Edition16.0.0 to before 16.0.16130.2054816.0.16130.20548Patch availableCNA
  • Microsoft SharePoint Server 2019 VendorMicrosoft Affected 16.0.0 to before 16.0.10399.20005 Fixed in 16.0.10399.20005 Patch available CNA
  • Microsoft SharePoint Server Subscription Edition VendorMicrosoft Affected 16.0.0 to before 16.0.16130.20548 Fixed in 16.0.16130.20548 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:microsoft:sharepoint_server:-:*:*:*:subscription:*:*:*not specified by NVDVulnerableMicrosoft
cpe:2.3:a:microsoft:sharepoint_server:2019:*:*:*:*:*:*:*2019VulnerableMicrosoft
  • cpe:2.3:a:microsoft:sharepoint_server:-:*:*:*:subscription:*:*:* Versions not specified by NVD Vulnerable ·Microsoft
  • cpe:2.3:a:microsoft:sharepoint_server:2019:*:*:*:*:*:*:* Versions 2019 Vulnerable ·Microsoft

Remediation

Microsoft 3 updates

  • KB5002416
    Security Update
    • Microsoft SharePoint Server Subscription Edition 16.0.16130.20548
  • KB5002403
    Security Update
    • Microsoft SharePoint Server 2019 16.0.10399.20005
  • KB5002402
    Security Update
    • Microsoft SharePoint Server 2019 16.0.10399.20005

Vendor assessments

Microsoft

Microsoft's page for this CVE →

Impact
Spoofing
Exploited
No
Publicly disclosed
No
Exploitability
Exploitation Less Likely

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-33132
  2. 2026-10-03 Alias added: GHSA-8285-rc43-48p3

References

Patch 1

  • TI-2026-42212 Microsoft SharePoint Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-37256 Microsoft SharePoint Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-16982 Microsoft SharePoint Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2025-33671 Microsoft SharePoint Server Remote Code Execution Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2023-13749 Microsoft SharePoint Server Elevation of Privilege Vulnerability KEVCVSS 3.1CRITICAL 9.8
  • TI-2019-00394 Improper input validation in Microsoft SharePoint Server KEVCVSS 3.1CRITICAL 9.8
See all 631 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences