Microsoft SharePoint Remote Code Execution Vulnerability
Priority MEDIUM 47CWE-494Published · 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. Impact type from CWE-494.
Summary
<p>A remote code execution vulnerability exists in Microsoft SharePoint where APIs aren't properly protected from unsafe data input. An attacker who successfully exploited the vulnerability could run arbitrary code in the context of the SharePoint application pool and the SharePoint server farm account.</p> <p>Exploitation of this vulnerability requires that a user access a susceptible API on an affected version of SharePoint with specially-formatted input.</p> <p>The security update addresses the vulnerability by correcting how SharePoint handles deserialization of untrusted data.</p>
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01979 80th percentileScored 2026-11-07
Fix Fixed Microsoft SharePoint Enterprise Server 2016 (Microsoft): publicationMicrosoft SharePoint Enterprise Server 2013 Service Pack 1 (Microsoft): publication+2 more products
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 Enterprise Server 2016 | 16.0.0 to before publication | publication | Patch available | CNA |
| Microsoft | Microsoft SharePoint Enterprise Server 2013 Service Pack 1 | 15.0.0 to before publication | publication | Patch available | CNA |
| Microsoft | Microsoft SharePoint Server 2019 | 16.0.0 to before publication | publication | Patch available | CNA |
| Microsoft | Microsoft SharePoint Foundation 2013 Service Pack 1 | 15.0.0 to before publication | publication | Patch available | CNA |
- Microsoft SharePoint Enterprise Server 2016 VendorMicrosoft Affected 16.0.0 to before publication Fixed in publication Patch available CNA
- Microsoft SharePoint Enterprise Server 2013 Service Pack 1 VendorMicrosoft Affected 15.0.0 to before publication Fixed in publication Patch available CNA
- Microsoft SharePoint Server 2019 VendorMicrosoft Affected 16.0.0 to before publication Fixed in publication Patch available CNA
- Microsoft SharePoint Foundation 2013 Service Pack 1 VendorMicrosoft Affected 15.0.0 to before publication Fixed in publication Patch available CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:microsoft:sharepoint_enterprise_server:2013:sp1:*:*:*:*:*:* | 2013 sp1 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:sharepoint_enterprise_server:2016:*:*:*:*:*:*:* | 2016 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:sharepoint_foundation:2013:sp1:*:*:*:*:*:* | 2013 sp1 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:sharepoint_server:2019:*:*:*:*:*:*:* | 2019 | Vulnerable | Microsoft |
- cpe:2.3:a:microsoft:sharepoint_enterprise_server:2013:sp1:*:*:*:*:*:* Versions 2013 sp1 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:sharepoint_enterprise_server:2016:*:*:*:*:*:*:* Versions 2016 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:sharepoint_foundation:2013:sp1:*:*:*:*:*:* Versions 2013 sp1 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:sharepoint_server:2019:*:*:*:*:*:*:* Versions 2019 Vulnerable ·Microsoft
Remediation
- Fix · CNA Microsoft SharePoint Enterprise Server 2016 (Microsoft) Fixed in publication
- Fix · CNA Microsoft SharePoint Enterprise Server 2013 Service Pack 1 (Microsoft) Fixed in publication
- Fix · CNA Microsoft SharePoint Server 2019 (Microsoft) Fixed in publication
- Fix · CNA Microsoft SharePoint Foundation 2013 Service Pack 1 (Microsoft) Fixed in publication
Timeline
- 2026-10-02 Threatist record created from CVE-2020-1595
- 2026-10-03 Alias added: GHSA-85x5-vr9q-4m59
More Microsoft Sharepoint Enterprise Server vulnerabilities
- TI-2019-00394 Improper input validation in Microsoft SharePoint Server KEVCVSS 3.1CRITICAL 9.8
- TI-2020-01112 A remote code execution vulnerability exists in .NET Framework, Microsoft SharePoint, and… KEVCVSS 3.1HIGH 7.8
- TI-2017-08774 Memory corruption in Microsoft Office KEVCVSS 3.1HIGH 7.8
- TI-2023-10439 Microsoft SharePoint Server Remote Code Execution Vulnerability KEVCVSS 3.1HIGH 7.2
- TI-2023-08100 Microsoft Word Remote Code Execution Vulnerability CVSS 3.1CRITICAL 9.8
- TI-2025-31676 Microsoft SharePoint Server Spoofing Vulnerability KEVCVSS 3.1MEDIUM 6.5
Sources
- CVE-2020-1595 · CVE Program
- CVE-2020-1595 · NVD
- FIRST EPSS
- GHSA-85x5-vr9q-4m59 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences