.NET Framework
CVE-2018-8540 — .NET Framework Remote Code Execution Injection Vulnerability
Critical
2018-12 archive
Executive Summary
A remote code execution vulnerability exists when the Microsoft .NET Framework fails to validate input properly. An attacker who successfully exploited this vulnerability could take control of an affected system. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights. To exploit the vulnerability, an attacker would need to pass specific input to an application utilizing susceptible .Net methods. The security update addresses the vulnerability by correcting how the Microsoft .NET Framework validates input.
Overview
Critical
MS Severity
Not Exploited
MS Exploit Status
Less Likely
MS Exploit Likelihood
EPSS Score
No EPSS score available for this CVE.
View on FIRST.orgAffected Products
39 affected products
| Product | KB Article | Severity | Impact | Restart Required |
|---|---|---|---|---|
| Microsoft .NET Framework 3.5 on Windows 10 for 32-bit Systems | 4471323 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft .NET Framework 3.5 on Windows 10 for x64-based Systems | 4471323 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft .NET Framework 3.5 on Windows 10 Version 1607 for 32-bit Systems | 4471321 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft .NET Framework 3.5 on Windows 10 Version 1607 for x64-based Systems | 4471321 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft .NET Framework 3.5 on Windows 10 Version 1703 for 32-bit Systems | 4471327 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft .NET Framework 3.5 on Windows 10 Version 1703 for x64-based Systems | 4471327 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft .NET Framework 3.5 on Windows 10 Version 1709 for 32-bit Systems | 4471329 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft .NET Framework 3.5 on Windows 10 Version 1709 for x64-based Systems | 4471329 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft .NET Framework 3.5 on Windows 10 Version 1803 for 32-bit Systems | 4471324 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft .NET Framework 3.5 on Windows 10 Version 1803 for x64-based Systems | 4471324 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft .NET Framework 3.5 on Windows 10 Version 1809 for 32-bit Systems | 4470502 (Security Update) |
Critical | Remote Code Execution | Maybe |
| Microsoft .NET Framework 3.5 on Windows 10 Version 1809 for x64-based Systems | 4470502 (Security Update) |
Critical | Remote Code Execution | Maybe |
| Microsoft .NET Framework 3.5 on Windows 8.1 for 32-bit systems 4470630 (Monthly Rollup) 4470602 (Security Only) Critical Remote Code Execution 4467226; 4467242 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5 on Windows 8.1 for x64-based systems 4470630 (Monthly Rollup) 4470602 (Security Only) Critical Remote Code Execution 4467226; 4467242 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5 on Windows Server 2012 4470629 (Monthly Rollup) 4470601 (Security Only) Critical Remote Code Execution 4467225; 4467241 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5 on Windows Server 2012 (Server Core installation) 4470629 (Monthly Rollup) 4470601 (Security Only) Critical Remote Code Execution 4467225; 4467241 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5 on Windows Server 2012 R2 4470630 (Monthly Rollup) 4470602 (Security Only) Critical Remote Code Execution 4467226; 4467242 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5 on Windows Server 2012 R2 (Server Core installation) 4470630 (Monthly Rollup) 4470602 (Security Only) Critical Remote Code Execution 4467226; 4467242 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5 on Windows Server 2016 | 4471321 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft .NET Framework 3.5 on Windows Server 2016 (Server Core installation) | 4471321 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft .NET Framework 3.5 on Windows Server 2019 | 4470502 (Security Update) |
Critical | Remote Code Execution | Maybe |
| Microsoft .NET Framework 3.5 on Windows Server 2019 (Server Core installation) | 4470502 (Security Update) |
Critical | Remote Code Execution | Maybe |
| Microsoft .NET Framework 3.5 on Windows Server, version 1709 (Server Core Installation) | 4471329 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft .NET Framework 3.5 on Windows Server, version 1803 (Server Core Installation) | 4471324 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft .NET Framework 3.5 Service Pack 1 on Windows Server 2008 for 32-bit Systems Service Pack 2 4471102 (Monthly Rollup) 4470633 (Security Only) Critical Remote Code Execution 4457921; 4467227; 4467243 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5 Service Pack 1 on Windows Server 2008 for x64-based Systems Service Pack 2 4471102 (Monthly Rollup) 4470633 (Security Only) Critical Remote Code Execution 4457921; 4467227; 4467243 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5.1 on Windows 7 for 32-bit Systems Service Pack 1 4470641 (Monthly Rollup) 4470600 (Security Only) Critical Remote Code Execution 4467224; 4467240 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5.1 on Windows 7 for x64-based Systems Service Pack 1 4470641 (Monthly Rollup) 4470600 (Security Only) Critical Remote Code Execution 4467224; 4467240 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5.1 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 4470641 (Monthly Rollup) 4470600 (Security Only) Critical Remote Code Execution 4467224; 4467240 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 3.5.1 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 4470641 (Monthly Rollup) 4470600 (Security Only) Critical Remote Code Execution 4467224; 4467240 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.5.2 on Windows 7 for 32-bit Systems Service Pack 1 4470637 (Monthly Rollup) 4470493 (Security Only) Critical Remote Code Execution 4467227; 4467243 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.5.2 on Windows 7 for x64-based Systems Service Pack 1 4470637 (Monthly Rollup) 4470493 (Security Only) Critical Remote Code Execution 4467227; 4467243 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.5.2 on Windows 8.1 for 32-bit systems 4470622 (Monthly Rollup) 4470491 (Security Only) Critical Remote Code Execution 4467226; 4467242 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.5.2 on Windows 8.1 for x64-based systems 4470622 (Monthly Rollup) 4470491 (Security Only) Critical Remote Code Execution 4467226; 4467242 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.5.2 on Windows RT 8.1 | 4470622 (Monthly Rollup) |
Critical | Remote Code Execution | Maybe |
| Microsoft .NET Framework 4.5.2 on Windows Server 2008 for 32-bit Systems Service Pack 2 4470637 (Monthly Rollup) 4470493 (Security Only) Critical Remote Code Execution 4467227; 4467243 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.5.2 on Windows Server 2008 for x64-based Systems Service Pack 2 4470637 (Monthly Rollup) 4470493 (Security Only) Critical Remote Code Execution 4467227; 4467243 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.5.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 4470637 (Monthly Rollup) 4470493 (Security Only) Critical Remote Code Execution 4467227; 4467243 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.5.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 4470637 (Monthly Rollup) 4470493 (Security Only) Critical Remote Code Execution 4467227; 4467243 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.5.2 on Windows Server 2012 4470623 (Monthly Rollup) 4470492 (Security Only) Critical Remote Code Execution 4467225; 4467241 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.5.2 on Windows Server 2012 (Server Core installation) 4470623 (Monthly Rollup) 4470492 (Security Only) Critical Remote Code Execution 4467225; 4467241 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.5.2 on Windows Server 2012 R2 4470622 (Monthly Rollup) 4470491 (Security Only) Critical Remote Code Execution 4467226; 4467242 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.5.2 on Windows Server 2012 R2 (Server Core installation) 4470622 (Monthly Rollup) 4470491 (Security Only) Critical Remote Code Execution 4467226; 4467242 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.6 on Windows Server 2008 for 32-bit Systems Service Pack 2 4470640 (Monthly Rollup) 4470500 (Security Only) Critical Remote Code Execution 4467227; 4467243 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.6 on Windows Server 2008 for x64-based Systems Service Pack 2 4470640 (Monthly Rollup) 4470500 (Security Only) Critical Remote Code Execution 4467227; 4467243 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.6.2 on Windows 10 for 32-bit Systems | 4471323 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft .NET Framework 4.6.2 on Windows 10 for x64-based Systems | 4471323 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows 10 Version 1607 for 32-bit Systems | 4471321 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows 10 Version 1607 for x64-based Systems | 4471321 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016 | 4471321 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016 (Server Core installation) | 4471321 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows 7 for 32-bit Systems Service Pack 1 4470640 (Monthly Rollup) 4470500 (Security Only) Critical Remote Code Execution 4467227; 4467243 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows 7 for x64-based Systems Service Pack 1 4470640 (Monthly Rollup) 4470500 (Security Only) Critical Remote Code Execution 4467227; 4467243 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows 8.1 for 32-bit systems 4470639 (Monthly Rollup) 4470499 (Security Only) Critical Remote Code Execution 4467226; 4467242 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows 8.1 for x64-based systems 4470639 (Monthly Rollup) 4470499 (Security Only) Critical Remote Code Execution 4467226; 4467242 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows RT 8.1 | 4470639 (Monthly Rollup) |
Critical | Remote Code Execution | Maybe |
| Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 4470641 (Monthly Rollup) 4470600 (Security Only) Critical Remote Code Execution 4467224; 4467240 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) 4470641 (Monthly Rollup) 4470600 (Security Only) Critical Remote Code Execution 4467224; 4467240 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 4470638 (Monthly Rollup) 4470498 (Security Only) Critical Remote Code Execution 4467225; 4467241 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 (Server Core installation) 4470638 (Monthly Rollup) 4470498 (Security Only) Critical Remote Code Execution 4467225; 4467241 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 R2 4470639 (Monthly Rollup) 4470499 (Security Only) Critical Remote Code Execution 4467226; 4467242 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 R2 (Server Core installation) 4470639 (Monthly Rollup) 4470499 (Security Only) Critical Remote Code Execution 4467226; 4467242 Base: N/A Temporal: N/A Vector: N/A Maybe None Microsoft .NET Framework 4.7.1/4.7.2 on Windows 10 Version 1709 for 32-bit Systems | 4471329 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft .NET Framework 4.7.1/4.7.2 on Windows 10 Version 1709 for ARM64-based Systems | 4471329 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft .NET Framework 4.7.1/4.7.2 on Windows 10 Version 1709 for x64-based Systems | 4471329 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft .NET Framework 4.7.1/4.7.2 on Windows Server, version 1709 (Server Core Installation) | 4471329 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft .NET Framework 4.7.2 on Windows 10 Version 1803 for 32-bit Systems | 4471324 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft .NET Framework 4.7.2 on Windows 10 Version 1803 for x64-based Systems | 4471324 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft .NET Framework 4.7.2 on Windows 10 Version 1809 for 32-bit Systems | 4470502 (Security Update) |
Critical | Remote Code Execution | Maybe |
| Microsoft .NET Framework 4.7.2 on Windows 10 Version 1809 for x64-based Systems | 4470502 (Security Update) |
Critical | Remote Code Execution | Maybe |
| Microsoft .NET Framework 4.7.2 on Windows Server 2019 | 4470502 (Security Update) |
Critical | Remote Code Execution | Maybe |
| Microsoft .NET Framework 4.7.2 on Windows Server 2019 (Server Core installation) | 4470502 (Security Update) |
Critical | Remote Code Execution | Maybe |
| Microsoft .NET Framework 4.7.2 on Windows Server, version 1803 (Server Core Installation) | 4471324 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft .NET Framework 4.7/4.7.1/4.7.2 on Windows 10 Version 1703 for 32-bit Systems | 4471327 (Security Update) |
Critical | Remote Code Execution | Yes |
| Microsoft .NET Framework 4.7/4.7.1/4.7.2 on Windows 10 Version 1703 for x64-based Systems | 4471327 (Security Update) |
Critical | Remote Code Execution | Yes |
Patches
8 patches
| Article | Type | Restart |
|---|---|---|
4471323 |
Security Update | Yes |
4471321 |
Security Update | Yes |
4471327 |
Security Update | Yes |
4471329 |
Security Update | Yes |
4471324 |
Security Update | Yes |
4470502 |
Security Update | Maybe |
4470622 |
Monthly Rollup | Maybe |
4470639 |
Monthly Rollup | Maybe |
Known Exploits
No known exploits have been linked for this CVE yet. When available, exploit references will be sourced from public repositories and may be unverified, incomplete, or non-functional. Always review code carefully before use in any environment.
Acknowledgments
References
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