CVE-2018-8540

.NET Framework Remote Code Execution Injection Vulnerability

CVE-2018-8540 is fixed in 75 products on 1 platform, first by KB4471321, released December 11, 2018. It is not reported as exploited. Patch Radar priority: Urgent.

Urgent
CVSS
n/a
Critical
Exploitation
None reported
Exploitation Less Likely
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.2158
97th percentile

<p>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.</p> <p>To exploit the vulnerability, an attacker would need to pass specific input to an application utilizing susceptible .Net methods.</p> <p>The security update addresses the vulnerability by correcting how the Microsoft .NET Framework validates input.</p>

Where it's fixed

ProductFixed inFixReleased
Microsoft
Microsoft .NET Framework 3.5 Service Pack 1 on Windows Server 2008 for 32-bit Systems Service Pack 2 KB4470633 Dec 11, 2018
Microsoft .NET Framework 3.5 Service Pack 1 on Windows Server 2008 for 32-bit Systems Service Pack 2 KB4471102 Dec 11, 2018
Microsoft .NET Framework 3.5 Service Pack 1 on Windows Server 2008 for x64-based Systems Service Pack 2 KB4470633 Dec 11, 2018
Microsoft .NET Framework 3.5 Service Pack 1 on Windows Server 2008 for x64-based Systems Service Pack 2 KB4471102 Dec 11, 2018
Microsoft .NET Framework 3.5 on Windows 10 Version 1607 for 32-bit Systems 14393.2665 KB4471321 Dec 11, 2018
Microsoft .NET Framework 3.5 on Windows 10 Version 1607 for x64-based Systems 14393.2665 KB4471321 Dec 11, 2018
Microsoft .NET Framework 3.5 on Windows 10 Version 1703 for 32-bit Systems 15063.1506 KB4471327 Dec 11, 2018
Microsoft .NET Framework 3.5 on Windows 10 Version 1703 for x64-based Systems 15063.1506 KB4471327 Dec 11, 2018
Microsoft .NET Framework 3.5 on Windows 10 Version 1709 for 32-bit Systems 16299.846 KB4471329 Dec 11, 2018
Microsoft .NET Framework 3.5 on Windows 10 Version 1709 for x64-based Systems 16299.846 KB4471329 Dec 11, 2018
Microsoft .NET Framework 3.5 on Windows 10 Version 1803 for 32-bit Systems 17134.471 KB4471324 Dec 11, 2018
Microsoft .NET Framework 3.5 on Windows 10 Version 1803 for x64-based Systems 17134.471 KB4471324 Dec 11, 2018
Microsoft .NET Framework 3.5 on Windows 10 Version 1809 for 32-bit Systems KB4470502 Dec 11, 2018
Microsoft .NET Framework 3.5 on Windows 10 Version 1809 for x64-based Systems KB4470502 Dec 11, 2018
Microsoft .NET Framework 3.5 on Windows 10 for 32-bit Systems 10240.18063 KB4471323 Dec 11, 2018
Microsoft .NET Framework 3.5 on Windows 10 for x64-based Systems 10240.18063 KB4471323 Dec 11, 2018
Microsoft .NET Framework 3.5 on Windows 8.1 for 32-bit systems KB4470630 Dec 11, 2018
Microsoft .NET Framework 3.5 on Windows 8.1 for 32-bit systems KB4470602 Dec 11, 2018
Microsoft .NET Framework 3.5 on Windows 8.1 for x64-based systems KB4470630 Dec 11, 2018
Microsoft .NET Framework 3.5 on Windows 8.1 for x64-based systems KB4470602 Dec 11, 2018
Microsoft .NET Framework 3.5 on Windows Server 2012 KB4470629 Dec 11, 2018
Microsoft .NET Framework 3.5 on Windows Server 2012 KB4470601 Dec 11, 2018
Microsoft .NET Framework 3.5 on Windows Server 2012 (Server Core installation) KB4470629 Dec 11, 2018
Microsoft .NET Framework 3.5 on Windows Server 2012 (Server Core installation) KB4470601 Dec 11, 2018
Microsoft .NET Framework 3.5 on Windows Server 2012 R2 KB4470630 Dec 11, 2018
Microsoft .NET Framework 3.5 on Windows Server 2012 R2 KB4470602 Dec 11, 2018
Microsoft .NET Framework 3.5 on Windows Server 2012 R2 (Server Core installation) KB4470630 Dec 11, 2018
Microsoft .NET Framework 3.5 on Windows Server 2012 R2 (Server Core installation) KB4470602 Dec 11, 2018
Microsoft .NET Framework 3.5 on Windows Server 2016 14393.2665 KB4471321 Dec 11, 2018
Microsoft .NET Framework 3.5 on Windows Server 2016 (Server Core installation) 14393.2665 KB4471321 Dec 11, 2018
Microsoft .NET Framework 3.5 on Windows Server 2019 KB4470502 Dec 11, 2018
Microsoft .NET Framework 3.5 on Windows Server 2019 (Server Core installation) KB4470502 Dec 11, 2018
Microsoft .NET Framework 3.5 on Windows Server, version 1709 (Server Core Installation) 16299.846 KB4471329 Dec 11, 2018
Microsoft .NET Framework 3.5 on Windows Server, version 1803 (Server Core Installation) 17134.471 KB4471324 Dec 11, 2018
Microsoft .NET Framework 3.5.1 on Windows 7 for 32-bit Systems Service Pack 1 KB4470641 Dec 11, 2018
Microsoft .NET Framework 3.5.1 on Windows 7 for 32-bit Systems Service Pack 1 KB4470600 Dec 11, 2018
Microsoft .NET Framework 3.5.1 on Windows 7 for x64-based Systems Service Pack 1 KB4470641 Dec 11, 2018
Microsoft .NET Framework 3.5.1 on Windows 7 for x64-based Systems Service Pack 1 KB4470600 Dec 11, 2018
Microsoft .NET Framework 3.5.1 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 KB4470641 Dec 11, 2018
Microsoft .NET Framework 3.5.1 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 KB4470600 Dec 11, 2018
Microsoft .NET Framework 3.5.1 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) KB4470641 Dec 11, 2018
Microsoft .NET Framework 3.5.1 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) KB4470600 Dec 11, 2018
Microsoft .NET Framework 4.5.2 on Windows 7 for 32-bit Systems Service Pack 1 KB4470637 Dec 11, 2018
Microsoft .NET Framework 4.5.2 on Windows 7 for 32-bit Systems Service Pack 1 KB4470493 Dec 11, 2018
Microsoft .NET Framework 4.5.2 on Windows 7 for x64-based Systems Service Pack 1 KB4470637 Dec 11, 2018
Microsoft .NET Framework 4.5.2 on Windows 7 for x64-based Systems Service Pack 1 KB4470493 Dec 11, 2018
Microsoft .NET Framework 4.5.2 on Windows 8.1 for 32-bit systems KB4470622 Dec 11, 2018
Microsoft .NET Framework 4.5.2 on Windows 8.1 for 32-bit systems KB4470491 Dec 11, 2018
Microsoft .NET Framework 4.5.2 on Windows 8.1 for x64-based systems KB4470622 Dec 11, 2018
Microsoft .NET Framework 4.5.2 on Windows 8.1 for x64-based systems KB4470491 Dec 11, 2018
Microsoft .NET Framework 4.5.2 on Windows RT 8.1 KB4470622 Dec 11, 2018
Microsoft .NET Framework 4.5.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 KB4470637 Dec 11, 2018
Microsoft .NET Framework 4.5.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 KB4470493 Dec 11, 2018
Microsoft .NET Framework 4.5.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) KB4470637 Dec 11, 2018
Microsoft .NET Framework 4.5.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) KB4470493 Dec 11, 2018
Microsoft .NET Framework 4.5.2 on Windows Server 2008 for 32-bit Systems Service Pack 2 KB4470637 Dec 11, 2018
Microsoft .NET Framework 4.5.2 on Windows Server 2008 for 32-bit Systems Service Pack 2 KB4470493 Dec 11, 2018
Microsoft .NET Framework 4.5.2 on Windows Server 2008 for x64-based Systems Service Pack 2 KB4470637 Dec 11, 2018
Microsoft .NET Framework 4.5.2 on Windows Server 2008 for x64-based Systems Service Pack 2 KB4470493 Dec 11, 2018
Microsoft .NET Framework 4.5.2 on Windows Server 2012 KB4470623 Dec 11, 2018
Microsoft .NET Framework 4.5.2 on Windows Server 2012 KB4470492 Dec 11, 2018
Microsoft .NET Framework 4.5.2 on Windows Server 2012 (Server Core installation) KB4470623 Dec 11, 2018
Microsoft .NET Framework 4.5.2 on Windows Server 2012 (Server Core installation) KB4470492 Dec 11, 2018
Microsoft .NET Framework 4.5.2 on Windows Server 2012 R2 KB4470622 Dec 11, 2018
Microsoft .NET Framework 4.5.2 on Windows Server 2012 R2 KB4470491 Dec 11, 2018
Microsoft .NET Framework 4.5.2 on Windows Server 2012 R2 (Server Core installation) KB4470622 Dec 11, 2018
Microsoft .NET Framework 4.5.2 on Windows Server 2012 R2 (Server Core installation) KB4470491 Dec 11, 2018
Microsoft .NET Framework 4.6 on Windows Server 2008 for 32-bit Systems Service Pack 2 KB4470640 Dec 11, 2018
Microsoft .NET Framework 4.6 on Windows Server 2008 for 32-bit Systems Service Pack 2 KB4470500 Dec 11, 2018
Microsoft .NET Framework 4.6 on Windows Server 2008 for x64-based Systems Service Pack 2 KB4470640 Dec 11, 2018
Microsoft .NET Framework 4.6 on Windows Server 2008 for x64-based Systems Service Pack 2 KB4470500 Dec 11, 2018
Microsoft .NET Framework 4.6.2 on Windows 10 for 32-bit Systems 10240.18063 KB4471323 Dec 11, 2018
Microsoft .NET Framework 4.6.2 on Windows 10 for x64-based Systems 10240.18063 KB4471323 Dec 11, 2018
Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows 10 Version 1607 for 32-bit Systems 14393.2665 KB4471321 Dec 11, 2018
Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows 10 Version 1607 for x64-based Systems 14393.2665 KB4471321 Dec 11, 2018
Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016 14393.2665 KB4471321 Dec 11, 2018
Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016 (Server Core installation) 14393.2665 KB4471321 Dec 11, 2018
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 KB4470640 Dec 11, 2018
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 KB4470500 Dec 11, 2018
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 KB4470640 Dec 11, 2018
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 KB4470500 Dec 11, 2018
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 KB4470499 Dec 11, 2018
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 KB4470639 Dec 11, 2018
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 KB4470499 Dec 11, 2018
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 KB4470639 Dec 11, 2018
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows RT 8.1 KB4470639 Dec 11, 2018
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 KB4470641 Dec 11, 2018
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 KB4470600 Dec 11, 2018
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) KB4470641 Dec 11, 2018
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) KB4470600 Dec 11, 2018
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 KB4470498 Dec 11, 2018
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 KB4470638 Dec 11, 2018
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) KB4470498 Dec 11, 2018
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) KB4470638 Dec 11, 2018
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 R2 KB4470499 Dec 11, 2018
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 R2 KB4470639 Dec 11, 2018
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) KB4470499 Dec 11, 2018
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) KB4470639 Dec 11, 2018
Microsoft .NET Framework 4.7.1/4.7.2 on Windows 10 Version 1709 for 32-bit Systems 16299.846 KB4471329 Dec 11, 2018
Microsoft .NET Framework 4.7.1/4.7.2 on Windows 10 Version 1709 for ARM64-based Systems 16299.846 KB4471329 Dec 11, 2018
Microsoft .NET Framework 4.7.1/4.7.2 on Windows 10 Version 1709 for x64-based Systems 16299.846 KB4471329 Dec 11, 2018
Microsoft .NET Framework 4.7.1/4.7.2 on Windows Server, version 1709 (Server Core Installation) 16299.846 KB4471329 Dec 11, 2018
Microsoft .NET Framework 4.7.2 on Windows 10 Version 1803 for 32-bit Systems 17134.471 KB4471324 Dec 11, 2018
Microsoft .NET Framework 4.7.2 on Windows 10 Version 1803 for x64-based Systems 17134.471 KB4471324 Dec 11, 2018
Microsoft .NET Framework 4.7.2 on Windows 10 Version 1809 for 32-bit Systems KB4470502 Dec 11, 2018
Microsoft .NET Framework 4.7.2 on Windows 10 Version 1809 for x64-based Systems KB4470502 Dec 11, 2018
Microsoft .NET Framework 4.7.2 on Windows Server 2019 KB4470502 Dec 11, 2018
Microsoft .NET Framework 4.7.2 on Windows Server 2019 (Server Core installation) KB4470502 Dec 11, 2018
Microsoft .NET Framework 4.7.2 on Windows Server, version 1803 (Server Core Installation) 17134.471 KB4471324 Dec 11, 2018
Microsoft .NET Framework 4.7/4.7.1/4.7.2 on Windows 10 Version 1703 for 32-bit Systems 15063.1506 KB4471327 Dec 11, 2018
Microsoft .NET Framework 4.7/4.7.1/4.7.2 on Windows 10 Version 1703 for x64-based Systems 15063.1506 KB4471327 Dec 11, 2018