Code injection in Microsoft .NET Framework
Priority MEDIUM 61CWE-94Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-94.
Summary
A remote code execution vulnerability exists when the Microsoft .NET Framework fails to validate input properly, aka ".NET Framework Remote Code Injection Vulnerability." This affects Microsoft .NET Framework 4.6, Microsoft .NET Framework 3.5, Microsoft .NET Framework 4.7/4.7.1/4.7.2, Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2, Microsoft .NET Framework 3.5.1, Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2, Microsoft .NET Framework 4.5.2, Microsoft .NET Framework 4.7.1/4.7.2, Microsoft .NET Framework 4.7.2, Microsoft .NET Framework 4.6.2.
Why it matters now
EPSS 0.21575 97th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Microsoft | Microsoft .NET Framework | 3.5 on Windows 10 for 32-bit Systems; 3.5 on Windows 10 for x64-based Systems; 3.5 on Windows 10 Version 1607 for 32-bit Systems; 3.5 on Windows 10 Version 1607 for x64-based Systems; 3.5 on Windows 10 Version 1703 for 32-bit Systems; 3.5 on Windows 10 Version 1703 for x64-based Systems; 3.5 on Windows 10 Version 1709 for 32-bit Systems; 3.5 on Windows 10 Version 1709 for x64-based Systems; 3.5 on Windows 10 Version 1803 for 32-bit Systems; 3.5 on Windows 10 Version 1803 for x64-based Systems; 3.5 on Windows 10 Version 1809 for 32-bit Systems; 3.5 on Windows 10 Version 1809 for x64-based Systems; 3.5 on Windows 8.1 for 32-bit systems; 3.5 on Windows 8.1 for x64-based systems; 3.5 on Windows Server 2012; 3.5 on Windows Server 2012 (Server Core installation); 3.5 on Windows Server 2012 R2; 3.5 on Windows Server 2012 R2 (Server Core installation); 3.5 on Windows Server 2016; 3.5 on Windows Server 2016 (Server Core installation); 3.5 on Windows Server 2019; 3.5 on Windows Server 2019 (Server Core installation); 3.5 on Windows Server, version 1709 (Server Core Installation); 3.5 on Windows Server, version 1803 (Server Core Installation); 3.5.1 on Windows 7 for 32-bit Systems Service Pack 1; 3.5.1 on Windows 7 for x64-based Systems Service Pack 1; 3.5.1 on Windows Server 2008 R2 for x64-based Systems Service Pack 1; 3.5.1 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation); 4.5.2 on Windows 7 for 32-bit Systems Service Pack 1; 4.5.2 on Windows 7 for x64-based Systems Service Pack 1; 4.5.2 on Windows 8.1 for 32-bit systems; 4.5.2 on Windows 8.1 for x64-based systems; 4.5.2 on Windows RT 8.1; 4.5.2 on Windows Server 2008 for 32-bit Systems Service Pack 2; 4.5.2 on Windows Server 2008 for x64-based Systems Service Pack 2; 4.5.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1; 4.5.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation); 4.5.2 on Windows Server 2012; 4.5.2 on Windows Server 2012 (Server Core installation); 4.5.2 on Windows Server 2012 R2; 4.5.2 on Windows Server 2012 R2 (Server Core installation); 4.6 on Windows Server 2008 for 32-bit Systems Service Pack 2; 4.6 on Windows Server 2008 for x64-based Systems Service Pack 2; 4.6.2 on Windows 10 for 32-bit Systems; 4.6.2 on Windows 10 for x64-based Systems; 4.6.2/4.7/4.7.1/4.7.2 on Windows 10 Version 1607 for 32-bit Systems; 4.6.2/4.7/4.7.1/4.7.2 on Windows 10 Version 1607 for x64-based Systems; 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016; 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016 (Server Core installation); 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows 7 for 32-bit Systems Service Pack 1; 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows 7 for x64-based Systems Service Pack 1; 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows 8.1 for 32-bit systems; 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows 8.1 for x64-based systems; 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows RT 8.1; 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1; 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation); 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows Server 2012; 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows Server 2012 (Server Core installation); 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows Server 2012 R2; 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows Server 2012 R2 (Server Core installation); 4.7.1/4.7.2 on Windows 10 Version 1709 for 32-bit Systems; 4.7.1/4.7.2 on Windows 10 Version 1709 for ARM64-based Systems; 4.7.1/4.7.2 on Windows 10 Version 1709 for x64-based Systems; 4.7.1/4.7.2 on Windows Server, version 1709 (Server Core Installation); 4.7.2 on Windows 10 Version 1803 for 32-bit Systems; 4.7.2 on Windows 10 Version 1803 for x64-based Systems; 4.7.2 on Windows 10 Version 1809 for 32-bit Systems; 4.7.2 on Windows 10 Version 1809 for x64-based Systems; 4.7.2 on Windows Server 2019; 4.7.2 on Windows Server 2019 (Server Core installation); 4.7.2 on Windows Server, version 1803 (Server Core Installation); 4.7/4.7.1/4.7.2 on Windows 10 Version 1703 for 32-bit Systems; 4.7/4.7.1/4.7.2 on Windows 10 Version 1703 for x64-based Systems | — | No fix listed | CNA |
- Microsoft .NET Framework VendorMicrosoft Affected 3.5 on Windows 10 for 32-bit Systems; 3.5 on Windows 10 for x64-based Systems; 3.5 on Windows 10 Version 1607 for 32-bit Systems; 3.5 on Windows 10 Version 1607 for x64-based Systems; 3.5 on Windows 10 Version 1703 for 32-bit Systems; 3.5 on Windows 10 Version 1703 for x64-based Systems; 3.5 on Windows 10 Version 1709 for 32-bit Systems; 3.5 on Windows 10 Version 1709 for x64-based Systems; 3.5 on Windows 10 Version 1803 for 32-bit Systems; 3.5 on Windows 10 Version 1803 for x64-based Systems; 3.5 on Windows 10 Version 1809 for 32-bit Systems; 3.5 on Windows 10 Version 1809 for x64-based Systems; 3.5 on Windows 8.1 for 32-bit systems; 3.5 on Windows 8.1 for x64-based systems; 3.5 on Windows Server 2012; 3.5 on Windows Server 2012 (Server Core installation); 3.5 on Windows Server 2012 R2; 3.5 on Windows Server 2012 R2 (Server Core installation); 3.5 on Windows Server 2016; 3.5 on Windows Server 2016 (Server Core installation); 3.5 on Windows Server 2019; 3.5 on Windows Server 2019 (Server Core installation); 3.5 on Windows Server, version 1709 (Server Core Installation); 3.5 on Windows Server, version 1803 (Server Core Installation); 3.5.1 on Windows 7 for 32-bit Systems Service Pack 1; 3.5.1 on Windows 7 for x64-based Systems Service Pack 1; 3.5.1 on Windows Server 2008 R2 for x64-based Systems Service Pack 1; 3.5.1 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation); 4.5.2 on Windows 7 for 32-bit Systems Service Pack 1; 4.5.2 on Windows 7 for x64-based Systems Service Pack 1; 4.5.2 on Windows 8.1 for 32-bit systems; 4.5.2 on Windows 8.1 for x64-based systems; 4.5.2 on Windows RT 8.1; 4.5.2 on Windows Server 2008 for 32-bit Systems Service Pack 2; 4.5.2 on Windows Server 2008 for x64-based Systems Service Pack 2; 4.5.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1; 4.5.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation); 4.5.2 on Windows Server 2012; 4.5.2 on Windows Server 2012 (Server Core installation); 4.5.2 on Windows Server 2012 R2; 4.5.2 on Windows Server 2012 R2 (Server Core installation); 4.6 on Windows Server 2008 for 32-bit Systems Service Pack 2; 4.6 on Windows Server 2008 for x64-based Systems Service Pack 2; 4.6.2 on Windows 10 for 32-bit Systems; 4.6.2 on Windows 10 for x64-based Systems; 4.6.2/4.7/4.7.1/4.7.2 on Windows 10 Version 1607 for 32-bit Systems; 4.6.2/4.7/4.7.1/4.7.2 on Windows 10 Version 1607 for x64-based Systems; 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016; 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016 (Server Core installation); 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows 7 for 32-bit Systems Service Pack 1; 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows 7 for x64-based Systems Service Pack 1; 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows 8.1 for 32-bit systems; 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows 8.1 for x64-based systems; 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows RT 8.1; 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1; 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation); 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows Server 2012; 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows Server 2012 (Server Core installation); 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows Server 2012 R2; 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.1/4.7.2 on Windows Server 2012 R2 (Server Core installation); 4.7.1/4.7.2 on Windows 10 Version 1709 for 32-bit Systems; 4.7.1/4.7.2 on Windows 10 Version 1709 for ARM64-based Systems; 4.7.1/4.7.2 on Windows 10 Version 1709 for x64-based Systems; 4.7.1/4.7.2 on Windows Server, version 1709 (Server Core Installation); 4.7.2 on Windows 10 Version 1803 for 32-bit Systems; 4.7.2 on Windows 10 Version 1803 for x64-based Systems; 4.7.2 on Windows 10 Version 1809 for 32-bit Systems; 4.7.2 on Windows 10 Version 1809 for x64-based Systems; 4.7.2 on Windows Server 2019; 4.7.2 on Windows Server 2019 (Server Core installation); 4.7.2 on Windows Server, version 1803 (Server Core Installation); 4.7/4.7.1/4.7.2 on Windows 10 Version 1703 for 32-bit Systems; 4.7/4.7.1/4.7.2 on Windows 10 Version 1703 for x64-based Systems Fixed in — No fix listed CNA
CPE configurations NVD · 27
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:microsoft:.net_framework:3.5:*:*:*:*:*:*:* | 3.5 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:* | 1607 | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_10:1703:*:*:*:*:*:*:* | 1703 | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:* | 1709 | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:*:* | 1803 | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:* | 1809 | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:pro_n:*:*:* | not specified by NVD | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:* | r2 | Running on | Microsoft |
- cpe:2.3:a:microsoft:.net_framework:3.5:*:*:*:*:*:*:* Versions 3.5 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_10:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_10:1607:*:*:*:*:*:*:* Versions 1607 Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_10:1703:*:*:*:*:*:*:* Versions 1703 Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_10:1709:*:*:*:*:*:*:* Versions 1709 Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_10:1803:*:*:*:*:*:*:* Versions 1803 Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_10:1809:*:*:*:*:*:*:* Versions 1809 Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_8.1:-:*:*:*:pro_n:*:*:* Versions not specified by NVD Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2012:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2012:r2:*:*:*:*:*:*:* Versions r2 Running on ·Microsoft
Show 17 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2016:1709:*:*:*:*:*:*:* | 1709 | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2016:1803:*:*:*:*:*:*:* | 1803 | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microsoft |
| cpe:2.3:a:microsoft:.net_framework:3.5:sp1:*:*:*:*:*:* | 3.5 sp1 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:* | not specified by NVD | Running on | Microsoft |
| cpe:2.3:a:microsoft:.net_framework:3.5.1:*:*:*:*:*:*:* | 3.5.1 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:* | not specified by NVD | Running on | Microsoft |
| cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:* | r2 sp1 | Running on | Microsoft |
| cpe:2.3:a:microsoft:.net_framework:4.5.2:*:*:*:*:*:*:* | 4.5.2 | Vulnerable | Microsoft |
| cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microsoft |
| cpe:2.3:a:microsoft:.net_framework:4.6.2:*:*:*:*:*:*:* | 4.6.2 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:.net_framework:4.6:*:*:*:*:*:*:* | 4.6 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:.net_framework:4.6.1:*:*:*:*:*:*:* | 4.6.1 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:.net_framework:4.7:*:*:*:*:*:*:* | 4.7 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:.net_framework:4.7.1:*:*:*:*:*:*:* | 4.7.1 | Vulnerable | Microsoft |
| cpe:2.3:a:microsoft:.net_framework:4.7.2:*:*:*:*:*:*:* | 4.7.2 | Vulnerable | Microsoft |
- cpe:2.3:o:microsoft:windows_server_2016:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2016:1709:*:*:*:*:*:*:* Versions 1709 Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2016:1803:*:*:*:*:*:*:* Versions 1803 Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2019:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
- cpe:2.3:a:microsoft:.net_framework:3.5:sp1:*:*:*:*:*:* Versions 3.5 sp1 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2008:-:sp2:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
- cpe:2.3:a:microsoft:.net_framework:3.5.1:*:*:*:*:*:*:* Versions 3.5.1 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_7:-:sp1:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
- cpe:2.3:o:microsoft:windows_server_2008:r2:sp1:*:*:*:*:x64:* Versions r2 sp1 Running on ·Microsoft
- cpe:2.3:a:microsoft:.net_framework:4.5.2:*:*:*:*:*:*:* Versions 4.5.2 Vulnerable ·Microsoft
- cpe:2.3:o:microsoft:windows_rt_8.1:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
- cpe:2.3:a:microsoft:.net_framework:4.6.2:*:*:*:*:*:*:* Versions 4.6.2 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:.net_framework:4.6:*:*:*:*:*:*:* Versions 4.6 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:.net_framework:4.6.1:*:*:*:*:*:*:* Versions 4.6.1 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:.net_framework:4.7:*:*:*:*:*:*:* Versions 4.7 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:.net_framework:4.7.1:*:*:*:*:*:*:* Versions 4.7.1 Vulnerable ·Microsoft
- cpe:2.3:a:microsoft:.net_framework:4.7.2:*:*:*:*:*:*:* Versions 4.7.2 Vulnerable ·Microsoft
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-8540
- 2026-10-03 Alias added: GHSA-5vvw-jxjx-wg5h
More Microsoft .net Framework vulnerabilities
- TI-2020-00622 XML injection in Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 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-2017-06273 Code injection in Microsoft .NET Framework KEVCVSS 3.1HIGH 7.8
- TI-2015-01495 The Windows DirectWrite library, as used in Microsoft .NET Framework 3.0 SP2, 3.5, 3.5.1… KEVCVSS 3.1HIGH 7.8
- TI-2024-19239 .NET Framework Information Disclosure Vulnerability KEVCVSS 3.1HIGH 7.5
- TI-2023-18684 ASP.NET Elevation of Privilege Vulnerability CVSS 3.1HIGH 8.8
Sources
- CVE-2018-8540 · CVE Program
- CVE-2018-8540 · NVD
- FIRST EPSS
- GHSA-5vvw-jxjx-wg5h · 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