Microsoft SharePoint Server Remote Code Execution Vulnerability
Priority MEDIUM 56Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- 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 Remote Code Execution Vulnerability
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.15168 96th percentileScored 2026-11-07
Fix Fixed Microsoft: 1 update
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 Business Productivity Servers 2010 Service Pack 2 | 13.0.0.0 to before 14.0.7267.5000 | 14.0.7267.5000 | Patch available | CNA |
| Microsoft | Microsoft SharePoint Enterprise Server 2016 | 16.0.0 to before 16.0.5134.1000 | 16.0.5134.1000 | Patch available | CNA |
| Microsoft | Microsoft SharePoint Foundation 2013 Service Pack 1 | 15.0.0 to before 15.0.5327.1000 | 15.0.5327.1000 | Patch available | CNA |
| Microsoft | Microsoft SharePoint Server 2019 | 16.0.0 to before 16.0.10372.20000 | 16.0.10372.20000 | Patch available | CNA |
- Microsoft Business Productivity Servers 2010 Service Pack 2 VendorMicrosoft Affected 13.0.0.0 to before 14.0.7267.5000 Fixed in 14.0.7267.5000 Patch available CNA
- Microsoft SharePoint Enterprise Server 2016 VendorMicrosoft Affected 16.0.0 to before 16.0.5134.1000 Fixed in 16.0.5134.1000 Patch available CNA
- Microsoft SharePoint Foundation 2013 Service Pack 1 VendorMicrosoft Affected 15.0.0 to before 15.0.5327.1000 Fixed in 15.0.5327.1000 Patch available CNA
- Microsoft SharePoint Server 2019 VendorMicrosoft Affected 16.0.0 to before 16.0.10372.20000 Fixed in 16.0.10372.20000 Patch available CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:microsoft:business_productivity_servers:2010:sp2:*:*:*:*:*:* | 2010 sp2 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:sharepoint_foundation:2013:sp1:*:*:*:*:*:* | 2013 sp1 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:sharepoint_server:2016:*:*:*:enterprise:*:*:* | 2016 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:sharepoint_server:2019:*:*:*:*:*:*:* | 2019 | Vulnerable | Microsoft |
- cpe:2.3:a:microsoft:business_productivity_servers:2010:sp2:*:*:*:*:*:* Versions 2010 sp2 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:sharepoint_foundation:2013:sp1:*:*:*:*:*:* Versions 2013 sp1 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:sharepoint_server:2016:*:*:*:enterprise:*:*:* Versions 2016 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:sharepoint_server:2019:*:*:*:*:*:*:* Versions 2019 Vulnerable ·Microsoft
Remediation
Microsoft 1 update
- Security Update
- Microsoft Business Productivity Servers 2010 Service Pack 2 14.0.7267.5000
Vendor assessments
Microsoft
Microsoft's page for this CVE →
- Impact
- Remote Code Execution
- Exploited
- No
- Publicly disclosed
- No
- Exploitability
- Exploitation More Likely
| Product | Status | Plan or fix |
|---|---|---|
| Microsoft SharePoint Enterprise Server 2016 | Fixed | 16.0.5134.1000 · Security Update |
| Microsoft SharePoint Foundation 2013 Service Pack 1 | Fixed | 15.0.5327.1000 · Security Update |
| Microsoft SharePoint Server 2019 | Fixed | 16.0.10372.20000 · Security Update |
Timeline
- 2026-10-02 Threatist record created from CVE-2021-27076
- 2026-10-03 Alias added: GHSA-v4x2-cq4f-rv9r
References
More Microsoft Business Productivity Servers vulnerabilities
- TI-2017-00221 Memory corruption in Microsoft Office 2007 SP2 and SP3, Microsoft Office 2010 SP2… CVSS 3.0HIGH 7.8
- TI-2020-00901 Unrestricted file upload in Microsoft SharePoint Foundation CVSS 3.1HIGH 8.8
- TI-2020-00770 Cross-site scripting in Microsoft SharePoint Enterprise Server CVSS 3.1MEDIUM 5.4
- TI-2019-00351 Cross-site scripting in Microsoft SharePoint Server CVSS 3.1MEDIUM 5.4
Sources
- CVE-2021-27076 · CVE Program
- CVE-2021-27076 · NVD
- FIRST EPSS
- GHSA-v4x2-cq4f-rv9r · GitHub Advisory Database · CC BY 4.0
- CVE-2021-27076 · Microsoft Security Update Guide
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences