Microsoft SharePoint Server Subscription Edition privilege escalation
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Privilege escalation
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Microsoft. Impact type from Microsoft.
Summary
Microsoft SharePoint Server Subscription Edition from 16.0.0 before 16.0.20326.20190 is affected. Improper privilege management (CWE-269) lets an authorized attacker over the network gain higher privileges. The attacker needs low privileges and no user interaction is required. Microsoft rates exploitation as less likely.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Description from the CNA
No cwe for this issue in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Microsoft | Microsoft SharePoint Server Subscription Edition | 16.0.0 to before 16.0.20326.20190 | 16.0.20326.20190 | Patch available | CNA |
- Microsoft SharePoint Server Subscription Edition VendorMicrosoft Affected 16.0.0 to before 16.0.20326.20190 Fixed in 16.0.20326.20190 Patch available CNA
Remediation
Install security update KB5002927, which fixes Microsoft SharePoint Server Subscription Edition in version 16.0.20326.20190.
Written with Claude Haiku 5.5 from the sources below · 2026-10-28
Microsoft 1 update
- Security Update
- Microsoft SharePoint Server Subscription Edition 16.0.20326.20190
Vendor assessments
Microsoft
Microsoft's page for this CVE →
- Impact
- Elevation of Privilege
- Exploited
- No
- Publicly disclosed
- No
- Exploitability
- Exploitation Less Likely
Timeline
- 2026-10-13 Threatist record created from CVE-2026-96044
- 2026-10-13 Alias added: GHSA-5x5c-f4vh-96cj
- 2026-10-14 Priority changed: LOW → MEDIUM
- 2026-10-16 Weakness changed · CNA
- 2026-10-16 Fix available: KB5002927 · Microsoft
References
More Microsoft Sharepoint Server vulnerabilities
- 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
Sources
- CVE-2026-96044 · CVE Program
- CVE-2026-96044 · NVD
- FIRST EPSS
- GHSA-5x5c-f4vh-96cj · GitHub Advisory Database · CC BY 4.0
- CVE-2026-96044 · Microsoft Security Update Guide
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences