Vulnerability Intelligence Report
Microsoft SharePoint Server Elevation of Privilege Vulnerability
CVE-2023-21717
Microsoft SharePoint Server Elevation of Privilege Vulnerability
No Active Exploit Signals
CVSS Base Score
8.8
HIGH
Exploitability:2.9
Impact Score:5.9
EPSS Probability:1.09%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-284 ↗CWE-284: Improper Access Control
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| Microsoft | Microsoft SharePoint Enterprise Server 2013 Service Pack 1 | 15.0.0 < 15.0.5529.1000 (affected) |
| Microsoft | Microsoft SharePoint Enterprise Server 2016 | 16.0.0 < 16.0.5383.1000 (affected) |
| Microsoft | Microsoft SharePoint Foundation 2013 Service Pack 1 | 15.0.0 < 15.0.5529.1000 (affected) |
| Microsoft | Microsoft SharePoint Server 2019 | 16.0.0 < 16.0.10395.20001 (affected) |
| Microsoft | Microsoft SharePoint Server Subscription Edition | 16.0.0 < 16.0.15601.20478 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
1.095%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Microsoft Corporation · Vendor · USA |
| Reserved | 2022-12-13T18:08:03 |
| Published | 2023-02-14T19:33:46 |
| Patch Date | 2023-02-14 |
| Last Updated | 2026-08-19T16:27:13 |
Community Chatter & Buzz