CVE-2020-16937
.NET Framework Information Disclosure Vulnerability
CVE-2020-16937 is fixed in 89 products on 1 platform, first by KB4580346, released October 13, 2020. It is not reported as exploited. Patch Radar priority: Routine.
RoutinePublicly disclosed
CVSS
4.7
Important
Exploitation
None reported
Exploitation Less Likely
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0329
88th percentile
<p>An information disclosure vulnerability exists when the .NET Framework improperly handles objects in memory. An attacker who successfully exploited the vulnerability could disclose contents of an affected system's memory.</p> <p>To exploit the vulnerability, an authenticated attacker would need to run a specially crafted application.</p> <p>The update addresses the vulnerability by correcting how the .NET Framework handles objects in memory.</p>
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Microsoft | |||
| Microsoft .NET Framework 2.0 Service Pack 2 on Windows Server 2008 for 32-bit Systems Service Pack 2 | KB4579980 | Oct 13, 2020 | |
| Microsoft .NET Framework 2.0 Service Pack 2 on Windows Server 2008 for 32-bit Systems Service Pack 2 | KB4580470 | Oct 13, 2020 | |
| Microsoft .NET Framework 2.0 Service Pack 2 on Windows Server 2008 for x64-based Systems Service Pack 2 | KB4579980 | Oct 13, 2020 | |
| Microsoft .NET Framework 2.0 Service Pack 2 on Windows Server 2008 for x64-based Systems Service Pack 2 | KB4580470 | Oct 13, 2020 | |
| Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows 10 Version 1607 for 32-bit Systems | 14393.3986 | KB4580346 | Oct 13, 2020 |
| Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows 10 Version 1607 for x64-based Systems | 14393.3986 | KB4580346 | Oct 13, 2020 |
| Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016 | 14393.3986 | KB4580346 | Oct 13, 2020 |
| Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2016 (Server Core installation) | 14393.3986 | KB4580346 | Oct 13, 2020 |
| Microsoft .NET Framework 3.5 AND 4.6/4.6.1/4.6.2 on Windows 10 for 32-bit Systems | 10240.18725 | KB4580327 | Oct 13, 2020 |
| Microsoft .NET Framework 3.5 AND 4.6/4.6.1/4.6.2 on Windows 10 for x64-based Systems | 10240.18725 | KB4580327 | Oct 13, 2020 |
| Microsoft .NET Framework 3.5 AND 4.7.1/4.7.2 on Windows 10 Version 1709 for 32-bit Systems | 16299.2166 | KB4580328 | Oct 13, 2020 |
| Microsoft .NET Framework 3.5 AND 4.7.1/4.7.2 on Windows 10 Version 1709 for ARM64-based Systems | 16299.2166 | KB4580328 | Oct 13, 2020 |
| Microsoft .NET Framework 3.5 AND 4.7.1/4.7.2 on Windows 10 Version 1709 for x64-based Systems | 16299.2166 | KB4580328 | Oct 13, 2020 |
| Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1803 for 32-bit Systems | 17134.1792 | KB4580330 | Oct 13, 2020 |
| Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1803 for ARM64-based Systems | 17134.1792 | KB4580330 | Oct 13, 2020 |
| Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1803 for x64-based Systems | 17134.1792 | KB4580330 | Oct 13, 2020 |
| Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for 32-bit Systems | KB4579976 | Oct 13, 2020 | |
| Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for ARM64-based Systems | KB4579976 | Oct 13, 2020 | |
| Microsoft .NET Framework 3.5 AND 4.7.2 on Windows 10 Version 1809 for x64-based Systems | KB4579976 | Oct 13, 2020 | |
| Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019 | KB4579976 | Oct 13, 2020 | |
| Microsoft .NET Framework 3.5 AND 4.7.2 on Windows Server 2019 (Server Core installation) | KB4579976 | Oct 13, 2020 | |
| Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for 32-bit Systems | KB4579976 | Oct 13, 2020 | |
| Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1809 for x64-based Systems | KB4579976 | Oct 13, 2020 | |
| Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1903 for 32-bit Systems | KB4578974 | Oct 13, 2020 | |
| Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1903 for ARM64-based Systems | KB4578974 | Oct 13, 2020 | |
| Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1903 for x64-based Systems | KB4578974 | Oct 13, 2020 | |
| Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1909 for 32-bit Systems | KB4578974 | Oct 13, 2020 | |
| Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1909 for ARM64-based Systems | KB4578974 | Oct 13, 2020 | |
| Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 1909 for x64-based Systems | KB4578974 | Oct 13, 2020 | |
| Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 2004 for 32-bit Systems | KB4578968 | Oct 13, 2020 | |
| Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 2004 for ARM64-based Systems | KB4578968 | Oct 13, 2020 | |
| Microsoft .NET Framework 3.5 AND 4.8 on Windows 10 Version 2004 for x64-based Systems | KB4578968 | Oct 13, 2020 | |
| Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019 | KB4579976 | Oct 13, 2020 | |
| Microsoft .NET Framework 3.5 AND 4.8 on Windows Server 2019 (Server Core installation) | KB4579976 | Oct 13, 2020 | |
| Microsoft .NET Framework 3.5 AND 4.8 on Windows Server, version 1903 (Server Core installation) | KB4578974 | Oct 13, 2020 | |
| Microsoft .NET Framework 3.5 AND 4.8 on Windows Server, version 1909 (Server Core installation) | KB4578974 | Oct 13, 2020 | |
| Microsoft .NET Framework 3.5 AND 4.8 on Windows Server, version 2004 (Server Core installation) | KB4578968 | Oct 13, 2020 | |
| Microsoft .NET Framework 3.5 on Windows 8.1 for 32-bit systems | KB4580469 | Oct 13, 2020 | |
| Microsoft .NET Framework 3.5 on Windows 8.1 for 32-bit systems | KB4579979 | Oct 13, 2020 | |
| Microsoft .NET Framework 3.5 on Windows 8.1 for x64-based systems | KB4580469 | Oct 13, 2020 | |
| Microsoft .NET Framework 3.5 on Windows 8.1 for x64-based systems | KB4579979 | Oct 13, 2020 | |
| Microsoft .NET Framework 3.5 on Windows Server 2012 | KB4579978 | Oct 13, 2020 | |
| Microsoft .NET Framework 3.5 on Windows Server 2012 | KB4580468 | Oct 13, 2020 | |
| Microsoft .NET Framework 3.5 on Windows Server 2012 (Server Core installation) | KB4579978 | Oct 13, 2020 | |
| Microsoft .NET Framework 3.5 on Windows Server 2012 (Server Core installation) | KB4580468 | Oct 13, 2020 | |
| Microsoft .NET Framework 3.5 on Windows Server 2012 R2 | KB4580469 | Oct 13, 2020 | |
| Microsoft .NET Framework 3.5 on Windows Server 2012 R2 | KB4579979 | Oct 13, 2020 | |
| Microsoft .NET Framework 3.5 on Windows Server 2012 R2 (Server Core installation) | KB4580469 | Oct 13, 2020 | |
| Microsoft .NET Framework 3.5 on Windows Server 2012 R2 (Server Core installation) | KB4579979 | Oct 13, 2020 | |
| Microsoft .NET Framework 3.5.1 on Windows 7 for 32-bit Systems Service Pack 1 | KB4579977 | Oct 13, 2020 | |
| Microsoft .NET Framework 3.5.1 on Windows 7 for 32-bit Systems Service Pack 1 | KB4580467 | Oct 13, 2020 | |
| Microsoft .NET Framework 3.5.1 on Windows 7 for x64-based Systems Service Pack 1 | KB4579977 | Oct 13, 2020 | |
| Microsoft .NET Framework 3.5.1 on Windows 7 for x64-based Systems Service Pack 1 | KB4580467 | Oct 13, 2020 | |
| Microsoft .NET Framework 3.5.1 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 | KB4579977 | Oct 13, 2020 | |
| Microsoft .NET Framework 3.5.1 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 | KB4580467 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.5.2 on Windows 7 for 32-bit Systems Service Pack 1 | KB4579977 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.5.2 on Windows 7 for 32-bit Systems Service Pack 1 | KB4580467 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.5.2 on Windows 7 for x64-based Systems Service Pack 1 | KB4579977 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.5.2 on Windows 7 for x64-based Systems Service Pack 1 | KB4580467 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.5.2 on Windows 8.1 for 32-bit systems | KB4580469 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.5.2 on Windows 8.1 for 32-bit systems | KB4579979 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.5.2 on Windows 8.1 for x64-based systems | KB4580469 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.5.2 on Windows 8.1 for x64-based systems | KB4579979 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.5.2 on Windows RT 8.1 | KB4579979 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.5.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 | KB4579977 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.5.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 | KB4580467 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.5.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | KB4579977 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.5.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | KB4580467 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.5.2 on Windows Server 2008 for 32-bit Systems Service Pack 2 | KB4579980 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.5.2 on Windows Server 2008 for 32-bit Systems Service Pack 2 | KB4580470 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.5.2 on Windows Server 2008 for x64-based Systems Service Pack 2 | KB4579980 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.5.2 on Windows Server 2008 for x64-based Systems Service Pack 2 | KB4580470 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.5.2 on Windows Server 2012 | KB4579978 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.5.2 on Windows Server 2012 | KB4580468 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.5.2 on Windows Server 2012 (Server Core installation) | KB4579978 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.5.2 on Windows Server 2012 (Server Core installation) | KB4580468 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.5.2 on Windows Server 2012 R2 | KB4580469 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.5.2 on Windows Server 2012 R2 | KB4579979 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.5.2 on Windows Server 2012 R2 (Server Core installation) | KB4580469 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.5.2 on Windows Server 2012 R2 (Server Core installation) | KB4579979 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.6 on Windows Server 2008 for 32-bit Systems Service Pack 2 | KB4578963 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.6 on Windows Server 2008 for 32-bit Systems Service Pack 2 | KB4580470 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.6 on Windows Server 2008 for x64-based Systems Service Pack 2 | KB4578963 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.6 on Windows Server 2008 for x64-based Systems Service Pack 2 | KB4580470 | Oct 13, 2020 | |
| 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 | KB4578963 | Oct 13, 2020 | |
| 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 | KB4580467 | Oct 13, 2020 | |
| 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 | KB4578963 | Oct 13, 2020 | |
| 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 | KB4580467 | Oct 13, 2020 | |
| 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 | KB4580469 | Oct 13, 2020 | |
| 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 | KB4579979 | Oct 13, 2020 | |
| 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 | KB4580469 | Oct 13, 2020 | |
| 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 | KB4579979 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows RT 8.1 | KB4579979 | Oct 13, 2020 | |
| 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 | KB4578963 | Oct 13, 2020 | |
| 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 | KB4580467 | Oct 13, 2020 | |
| 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) | KB4578963 | Oct 13, 2020 | |
| 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) | KB4580467 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 | KB4580468 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 | KB4578961 | Oct 13, 2020 | |
| 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) | KB4580468 | Oct 13, 2020 | |
| 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) | KB4578961 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 R2 | KB4580469 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.6/4.6.1/4.6.2/4.7/4.7.1/4.7.2 on Windows Server 2012 R2 | KB4579979 | Oct 13, 2020 | |
| 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) | KB4580469 | Oct 13, 2020 | |
| 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) | KB4579979 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for 32-bit Systems | KB4578969 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.8 on Windows 10 Version 1607 for x64-based Systems | KB4578969 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.8 on Windows 10 Version 1709 for 32-bit Systems | KB4578971 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.8 on Windows 10 Version 1709 for x64-based Systems | KB4578971 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.8 on Windows 10 Version 1803 for 32-bit Systems | KB4578972 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.8 on Windows 10 Version 1803 for x64-based Systems | KB4578972 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.8 on Windows 7 for 32-bit Systems Service Pack 1 | KB4579977 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.8 on Windows 7 for 32-bit Systems Service Pack 1 | KB4580467 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.8 on Windows 7 for x64-based Systems Service Pack 1 | KB4579977 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.8 on Windows 7 for x64-based Systems Service Pack 1 | KB4580467 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.8 on Windows 8.1 for 32-bit systems | KB4580469 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.8 on Windows 8.1 for 32-bit systems | KB4579979 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.8 on Windows 8.1 for x64-based systems | KB4580469 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.8 on Windows 8.1 for x64-based systems | KB4579979 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.8 on Windows RT 8.1 | KB4579979 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.8 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 | KB4579977 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.8 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 | KB4580467 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.8 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | KB4579977 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.8 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | KB4580467 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.8 on Windows Server 2012 | KB4579978 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.8 on Windows Server 2012 | KB4580468 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.8 on Windows Server 2012 (Server Core installation) | KB4579978 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.8 on Windows Server 2012 (Server Core installation) | KB4580468 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.8 on Windows Server 2012 R2 | KB4580469 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.8 on Windows Server 2012 R2 | KB4579979 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.8 on Windows Server 2012 R2 (Server Core installation) | KB4580469 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.8 on Windows Server 2012 R2 (Server Core installation) | KB4579979 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.8 on Windows Server 2016 | KB4578969 | Oct 13, 2020 | |
| Microsoft .NET Framework 4.8 on Windows Server 2016 (Server Core installation) | KB4578969 | Oct 13, 2020 | |
Patch Radar data is free to use with attribution. Terms and how to credit it.
Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.