CVE-2017-8759

.NET Framework Remote Code Execution Vulnerability

CVE-2017-8759 is fixed in 59 products on 1 platform, first by KB4038783, released September 12, 2017. It is being exploited: CISA added it to the Known Exploited Vulnerabilities catalog on November 3, 2021. Patch Radar priority: Patch now.

Patch nowCISA KEV
CVSS
n/a
Important
Exploitation
Exploited
Reported by the vendor
CISA KEV
Nov 3, 2021
Federal due date May 3, 2022
EPSS
0.8870
99th percentile

<p>A remote code execution vulnerability exists when Microsoft .NET Framework processes untrusted input. An attacker who successfully exploited this vulnerability in software using the .NET framework 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 first need to convince the user to open a malicious document or application.</p> <p>The security update addresses the vulnerability by correcting how .NET validates untrusted input.</p>

Where it's fixed

ProductFixed inFixReleased
Microsoft
Microsoft .NET Framework 2.0 Service Pack 2 on Windows Server 2008 for 32-bit Systems Service Pack 2 KB4040978 Sep 12, 2017
Microsoft .NET Framework 2.0 Service Pack 2 on Windows Server 2008 for 32-bit Systems Service Pack 2 KB4040964 Sep 12, 2017
Microsoft .NET Framework 2.0 Service Pack 2 on Windows Server 2008 for Itanium-Based Systems Service Pack 2 KB4040978 Sep 12, 2017
Microsoft .NET Framework 2.0 Service Pack 2 on Windows Server 2008 for Itanium-Based Systems Service Pack 2 KB4040964 Sep 12, 2017
Microsoft .NET Framework 2.0 Service Pack 2 on Windows Server 2008 for x64-based Systems Service Pack 2 KB4040978 Sep 12, 2017
Microsoft .NET Framework 2.0 Service Pack 2 on Windows Server 2008 for x64-based Systems Service Pack 2 KB4040964 Sep 12, 2017
Microsoft .NET Framework 3.5 on Windows 10 Version 1511 for 32-bit Systems 10586.1106 KB4038783 Sep 12, 2017
Microsoft .NET Framework 3.5 on Windows 10 Version 1511 for x64-based Systems 10586.1106 KB4038783 Sep 12, 2017
Microsoft .NET Framework 3.5 on Windows 10 Version 1607 for 32-bit Systems 14393.1715 KB4038782 Sep 12, 2017
Microsoft .NET Framework 3.5 on Windows 10 Version 1607 for x64-based Systems 14393.1715 KB4038782 Sep 12, 2017
Microsoft .NET Framework 3.5 on Windows 10 Version 1703 for 32-bit Systems 15063.608 KB4038788 Sep 12, 2017
Microsoft .NET Framework 3.5 on Windows 10 Version 1703 for x64-based Systems 15063.608 KB4038788 Sep 12, 2017
Microsoft .NET Framework 3.5 on Windows 10 for 32-bit Systems 10240.17609 KB4038781 Sep 12, 2017
Microsoft .NET Framework 3.5 on Windows 10 for x64-based Systems 10240.17609 KB4038781 Sep 12, 2017
Microsoft .NET Framework 3.5 on Windows 8.1 for 32-bit systems KB4040967 Sep 12, 2017
Microsoft .NET Framework 3.5 on Windows 8.1 for 32-bit systems KB4040981 Sep 12, 2017
Microsoft .NET Framework 3.5 on Windows 8.1 for x64-based systems KB4040967 Sep 12, 2017
Microsoft .NET Framework 3.5 on Windows 8.1 for x64-based systems KB4040981 Sep 12, 2017
Microsoft .NET Framework 3.5 on Windows Server 2012 KB4040979 Sep 12, 2017
Microsoft .NET Framework 3.5 on Windows Server 2012 KB4040965 Sep 12, 2017
Microsoft .NET Framework 3.5 on Windows Server 2012 (Server Core installation) KB4040979 Sep 12, 2017
Microsoft .NET Framework 3.5 on Windows Server 2012 (Server Core installation) KB4040965 Sep 12, 2017
Microsoft .NET Framework 3.5 on Windows Server 2012 R2 KB4040967 Sep 12, 2017
Microsoft .NET Framework 3.5 on Windows Server 2012 R2 KB4040981 Sep 12, 2017
Microsoft .NET Framework 3.5 on Windows Server 2016 14393.1715 KB4038782 Sep 12, 2017
Microsoft .NET Framework 3.5 on Windows Server 2016 (Server Core installation) 14393.1715 KB4038782 Sep 12, 2017
Microsoft .NET Framework 3.5.1 on Windows 7 for 32-bit Systems Service Pack 1 KB4040966 Sep 12, 2017
Microsoft .NET Framework 3.5.1 on Windows 7 for 32-bit Systems Service Pack 1 KB4040980 Sep 12, 2017
Microsoft .NET Framework 3.5.1 on Windows 7 for x64-based Systems Service Pack 1 KB4040966 Sep 12, 2017
Microsoft .NET Framework 3.5.1 on Windows 7 for x64-based Systems Service Pack 1 KB4040980 Sep 12, 2017
Microsoft .NET Framework 3.5.1 on Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 KB4040966 Sep 12, 2017
Microsoft .NET Framework 3.5.1 on Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 KB4040980 Sep 12, 2017
Microsoft .NET Framework 3.5.1 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 KB4040966 Sep 12, 2017
Microsoft .NET Framework 3.5.1 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 KB4040980 Sep 12, 2017
Microsoft .NET Framework 3.5.1 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) KB4040966 Sep 12, 2017
Microsoft .NET Framework 3.5.1 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) KB4040980 Sep 12, 2017
Microsoft .NET Framework 4.5.2 on Windows 7 for 32-bit Systems Service Pack 1 KB4040977 Sep 12, 2017
Microsoft .NET Framework 4.5.2 on Windows 7 for 32-bit Systems Service Pack 1 KB4040960 Sep 12, 2017
Microsoft .NET Framework 4.5.2 on Windows 7 for x64-based Systems Service Pack 1 KB4040977 Sep 12, 2017
Microsoft .NET Framework 4.5.2 on Windows 7 for x64-based Systems Service Pack 1 KB4040960 Sep 12, 2017
Microsoft .NET Framework 4.5.2 on Windows 8.1 for 32-bit systems KB4040974 Sep 12, 2017
Microsoft .NET Framework 4.5.2 on Windows 8.1 for 32-bit systems KB4040958 Sep 12, 2017
Microsoft .NET Framework 4.5.2 on Windows 8.1 for x64-based systems KB4040974 Sep 12, 2017
Microsoft .NET Framework 4.5.2 on Windows 8.1 for x64-based systems KB4040958 Sep 12, 2017
Microsoft .NET Framework 4.5.2 on Windows RT 8.1 KB4040974 Sep 12, 2017
Microsoft .NET Framework 4.5.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 KB4040977 Sep 12, 2017
Microsoft .NET Framework 4.5.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 KB4040960 Sep 12, 2017
Microsoft .NET Framework 4.5.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) KB4040977 Sep 12, 2017
Microsoft .NET Framework 4.5.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) KB4040960 Sep 12, 2017
Microsoft .NET Framework 4.5.2 on Windows Server 2008 for 32-bit Systems Service Pack 2 KB4040977 Sep 12, 2017
Microsoft .NET Framework 4.5.2 on Windows Server 2008 for 32-bit Systems Service Pack 2 KB4040960 Sep 12, 2017
Microsoft .NET Framework 4.5.2 on Windows Server 2008 for x64-based Systems Service Pack 2 KB4040977 Sep 12, 2017
Microsoft .NET Framework 4.5.2 on Windows Server 2008 for x64-based Systems Service Pack 2 KB4040960 Sep 12, 2017
Microsoft .NET Framework 4.5.2 on Windows Server 2012 KB4040959 Sep 12, 2017
Microsoft .NET Framework 4.5.2 on Windows Server 2012 KB4040975 Sep 12, 2017
Microsoft .NET Framework 4.5.2 on Windows Server 2012 (Server Core installation) KB4040959 Sep 12, 2017
Microsoft .NET Framework 4.5.2 on Windows Server 2012 (Server Core installation) KB4040975 Sep 12, 2017
Microsoft .NET Framework 4.5.2 on Windows Server 2012 R2 KB4040974 Sep 12, 2017
Microsoft .NET Framework 4.5.2 on Windows Server 2012 R2 KB4040958 Sep 12, 2017
Microsoft .NET Framework 4.5.2 on Windows Server 2012 R2 (Server Core installation) KB4040974 Sep 12, 2017
Microsoft .NET Framework 4.5.2 on Windows Server 2012 R2 (Server Core installation) KB4040958 Sep 12, 2017
Microsoft .NET Framework 4.6 on Windows 10 for 32-bit Systems 10240.17609 KB4038781 Sep 12, 2017
Microsoft .NET Framework 4.6 on Windows 10 for x64-based Systems 10240.17609 KB4038781 Sep 12, 2017
Microsoft .NET Framework 4.6 on Windows Server 2008 for 32-bit Systems Service Pack 2 KB4040973 Sep 12, 2017
Microsoft .NET Framework 4.6 on Windows Server 2008 for 32-bit Systems Service Pack 2 KB4040957 Sep 12, 2017
Microsoft .NET Framework 4.6 on Windows Server 2008 for x64-based Systems Service Pack 2 KB4040973 Sep 12, 2017
Microsoft .NET Framework 4.6 on Windows Server 2008 for x64-based Systems Service Pack 2 KB4040957 Sep 12, 2017
Microsoft .NET Framework 4.6.1 on Windows 10 Version 1511 for 32-bit Systems 10586.1106 KB4038783 Sep 12, 2017
Microsoft .NET Framework 4.6.1 on Windows 10 Version 1511 for x64-based Systems 10586.1106 KB4038783 Sep 12, 2017
Microsoft .NET Framework 4.6.2/4.7 on Windows 10 Version 1607 for 32-bit Systems 14393.1715 KB4038782 Sep 12, 2017
Microsoft .NET Framework 4.6.2/4.7 on Windows 10 Version 1607 for x64-based Systems 14393.1715 KB4038782 Sep 12, 2017
Microsoft .NET Framework 4.6.2/4.7 on Windows Server 2016 14393.1715 KB4038782 Sep 12, 2017
Microsoft .NET Framework 4.6.2/4.7 on Windows Server 2016 (Server Core installation) 14393.1715 KB4038782 Sep 12, 2017
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7 on Windows 7 for 32-bit Systems Service Pack 1 KB4040973 Sep 12, 2017
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7 on Windows 7 for 32-bit Systems Service Pack 1 KB4040957 Sep 12, 2017
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7 on Windows 7 for x64-based Systems Service Pack 1 KB4040973 Sep 12, 2017
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7 on Windows 7 for x64-based Systems Service Pack 1 KB4040957 Sep 12, 2017
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7 on Windows 8.1 for 32-bit systems KB4040972 Sep 12, 2017
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7 on Windows 8.1 for 32-bit systems KB4040956 Sep 12, 2017
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7 on Windows 8.1 for x64-based systems KB4040972 Sep 12, 2017
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7 on Windows 8.1 for x64-based systems KB4040956 Sep 12, 2017
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7 on Windows RT 8.1 KB4040972 Sep 12, 2017
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 KB4040973 Sep 12, 2017
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 KB4040957 Sep 12, 2017
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) KB4040973 Sep 12, 2017
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) KB4040957 Sep 12, 2017
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7 on Windows Server 2012 KB4040971 Sep 12, 2017
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7 on Windows Server 2012 KB4040955 Sep 12, 2017
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7 on Windows Server 2012 (Server Core installation) KB4040971 Sep 12, 2017
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7 on Windows Server 2012 (Server Core installation) KB4040955 Sep 12, 2017
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7 on Windows Server 2012 R2 KB4040972 Sep 12, 2017
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7 on Windows Server 2012 R2 KB4040956 Sep 12, 2017
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7 on Windows Server 2012 R2 (Server Core installation) KB4040972 Sep 12, 2017
Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7 on Windows Server 2012 R2 (Server Core installation) KB4040956 Sep 12, 2017
Microsoft .NET Framework 4.7 on Windows 10 Version 1703 for 32-bit Systems 15063.608 KB4038788 Sep 12, 2017
Microsoft .NET Framework 4.7 on Windows 10 Version 1703 for x64-based Systems 15063.608 KB4038788 Sep 12, 2017