CVE-2026-88164— Microsoft Office SharePoint Elevation of Privilege Vulnerability
Quick assessment
Affected
Microsoft Microsoft SharePoint Server Subscription Edition
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
微软 Office SharePoint 中存在缺失身份验证的问题，允许已授权的攻击者通过网络提升权限。
Possible ATT&CK Techniques 1 AI
T1068 · Exploitation for Privilege EscalationAffected Version Matrix 1
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Microsoft | Microsoft SharePoint Server Subscription Edition | 16.0.0< 16.0.20326.20190 |
affected |
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I. Basic Information for CVE-2026-88164
Vulnerability Information
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Vulnerability Title
Microsoft Office SharePoint Elevation of Privilege Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Missing authorization in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制缺失
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Microsoft | Microsoft SharePoint Server Subscription Edition | 16.0.0 ~ 16.0.20326.20190 | - |
|
II. Public POCs for CVE-2026-88164
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2026-88164 (1)
IV. Related Vulnerabilities
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Same weakness: CWE-862
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V. Comments for CVE-2026-88164
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