CVE-2026-63520— Microsoft SharePoint Server Remote Code Execution Vulnerability
Quick assessment
Affected
Microsoft Microsoft SharePoint Enterprise Server 2016
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.
Microsoft SharePoint是美国Microsoft公司的一款企业级协作与办公自动化平台。 Microsoft SharePoint存在输入验证错误漏洞，该漏洞源于输入验证不当，可能导致未经授权的攻击者通过网络执行代码。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 3
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Microsoft | Microsoft SharePoint Enterprise Server 2016 | 16.0.0< 16.0.5565.1001 |
affected |
| Microsoft | Microsoft SharePoint Server 2019 | 16.0.0< 16.0.10417.20198 |
affected |
| Microsoft | Microsoft SharePoint Server Subscription Edition | 16.0.0< 16.0.19725.20522 |
affected |
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I. Basic Information for CVE-2026-63520
Vulnerability Information
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Vulnerability Title
Microsoft SharePoint Server Remote Code Execution Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
Improper input validation in Microsoft Office SharePoint allows an unauthorized attacker to execute code over a network.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Microsoft SharePoint 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Microsoft SharePoint是美国Microsoft公司的一款企业级协作与办公自动化平台。 Microsoft SharePoint存在输入验证错误漏洞，该漏洞源于输入验证不当，可能导致未经授权的攻击者通过网络执行代码。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Microsoft | Microsoft SharePoint Enterprise Server 2016 | 16.0.0 ~ 16.0.5565.1001 | - |
|
| Microsoft | Microsoft SharePoint Server 2019 | 16.0.0 ~ 16.0.10417.20198 | - |
|
| Microsoft | Microsoft SharePoint Server Subscription Edition | 16.0.0 ~ 16.0.19725.20522 | - |
|
II. Public POCs for CVE-2026-63520
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2026-63520 (1)
Same Patch Batch · Microsoft · 2026-08-11 · 402 CVEs total
| CVE-2026-62815 | 9.8 CRITICAL | Microsoft QUIC Remote Code Execution Vulnerability |
| CVE-2026-65791 | 9.8 CRITICAL | Windows iSCSI Target Service Remote Code Execution Vulnerability |
| CVE-2026-62878 | 9.8 CRITICAL | Windows DNS Server Remote Code Execution Vulnerability |
| CVE-2026-62893 | 9.8 CRITICAL | Windows Deployment Services TFTP Server Remote Code Execution Vulnerability |
| CVE-2026-59124 | 9.8 CRITICAL | Microsoft High Performance Computing (HPC) Pack Remote Code Execution Vulnerability |
| CVE-2026-50516 | 9.4 CRITICAL | Microsoft Azure Kubernetes Service Elevation of Privilege Vulnerability |
| CVE-2026-70306 | 9.3 CRITICAL | Microsoft Office SharePoint Spoofing Vulnerability |
| CVE-2026-70329 | 8.8 HIGH | Microsoft Outlook Remote Code Execution Vulnerability |
| CVE-2026-69320 | 8.8 HIGH | Visual Studio Code Remote Code Execution Vulnerability |
| CVE-2026-62872 | 8.8 HIGH | .NET Framework Elevation of Privilege Vulnerability |
| CVE-2026-62913 | 8.8 HIGH | Microsoft Exchange Server Remote Code Execution Vulnerability |
| CVE-2026-62824 | 8.8 HIGH | Remote Desktop Client Remote Code Execution Vulnerability |
| CVE-2026-62822 | 8.8 HIGH | Windows GDI+ Remote Code Execution Vulnerability |
| CVE-2026-62823 | 8.8 HIGH | Windows DHCP Server Remote Code Execution Vulnerability |
| CVE-2026-70321 | 8.8 HIGH | Microsoft SharePoint Remote Code Execution Vulnerability |
| CVE-2026-66808 | 8.8 HIGH | Microsoft SharePoint Server Remote Code Execution Vulnerability |
| CVE-2026-62790 | 8.8 HIGH | Windows SMBv3 Server Remote Code Execution Vulnerability |
| CVE-2026-62800 | 8.8 HIGH | Windows SMBv3 Server Remote Code Execution Vulnerability |
| CVE-2026-62817 | 8.8 HIGH | Windows DNS Server Remote Code Execution Vulnerability |
| CVE-2026-62795 | 8.8 HIGH | Windows LDAP - Lightweight Directory Access Protocol Remote Code Execution Vulnerability |
Showing top 20 of 402 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
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V. Comments for CVE-2026-63520
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