# CVE-2016-7270: .NET Framework Information Disclosure Vulnerability CVE-2016-7270 is fixed in 14 products on 1 platform, first by KB3206632, released December 13, 2016. It is not reported as exploited. Patch Radar priority: High. - Web page: https://patchblox.com/security/cve/CVE-2016-7270 - Priority: High - CVSS: n/a (Important) - EPSS: 0.2332 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: yes - Vendor exploitability assessment: Exploitation Unlikely - Published: Dec 19, 2016 - Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2016-7270 ## Description

An information disclosure vulnerability exists in Microsoft .NET 4.6.2 Framework’s Data Provider for SQL Server that could allow an attacker to access information that should be defended by the Always Encrypted feature. The vulnerability is caused when .NET Framework improperly uses a developer-supplied key. When this key is misused, it is also possible for access to data to be temporarily lost.

To exploit the vulnerability, an attacker who can access the incorrectly encrypted data could attempt to decrypt the data using an easily guessable key.

The security update addresses the vulnerability by correcting the way .NET Framework handles the developer-supplied key, and thus properly defends the data.

## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Microsoft | Microsoft .NET Framework 4.6.2 on Windows 10 Version 1607 for 32-bit Systems | | [KB3206632](https://patchblox.com/security/data/fix/microsoft/kb3206632.md) | Dec 13, 2016 | | Microsoft | Microsoft .NET Framework 4.6.2 on Windows 10 Version 1607 for x64-based Systems | | [KB3206632](https://patchblox.com/security/data/fix/microsoft/kb3206632.md) | Dec 13, 2016 | | Microsoft | Microsoft .NET Framework 4.6.2 on Windows 7 for 32-bit Systems Service Pack 1 | | [KB3204805](https://patchblox.com/security/data/fix/microsoft/kb3204805.md) | Dec 19, 2016 | | Microsoft | Microsoft .NET Framework 4.6.2 on Windows 7 for x64-based Systems Service Pack 1 | | [KB3204805](https://patchblox.com/security/data/fix/microsoft/kb3204805.md) | Dec 19, 2016 | | Microsoft | Microsoft .NET Framework 4.6.2 on Windows 8.1 for 32-bit systems | | [KB3204802](https://patchblox.com/security/data/fix/microsoft/kb3204802.md) | Dec 19, 2016 | | Microsoft | Microsoft .NET Framework 4.6.2 on Windows 8.1 for x64-based systems | | [KB3204802](https://patchblox.com/security/data/fix/microsoft/kb3204802.md) | Dec 19, 2016 | | Microsoft | Microsoft .NET Framework 4.6.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 | | [KB3204805](https://patchblox.com/security/data/fix/microsoft/kb3204805.md) | Dec 19, 2016 | | Microsoft | Microsoft .NET Framework 4.6.2 on Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | | [KB3204805](https://patchblox.com/security/data/fix/microsoft/kb3204805.md) | Dec 19, 2016 | | Microsoft | Microsoft .NET Framework 4.6.2 on Windows Server 2012 | | [KB3204801](https://patchblox.com/security/data/fix/microsoft/kb3204801.md) | Dec 19, 2016 | | Microsoft | Microsoft .NET Framework 4.6.2 on Windows Server 2012 (Server Core installation) | | [KB3204801](https://patchblox.com/security/data/fix/microsoft/kb3204801.md) | Dec 19, 2016 | | Microsoft | Microsoft .NET Framework 4.6.2 on Windows Server 2012 R2 | | [KB3204802](https://patchblox.com/security/data/fix/microsoft/kb3204802.md) | Dec 19, 2016 | | Microsoft | Microsoft .NET Framework 4.6.2 on Windows Server 2012 R2 (Server Core installation) | | [KB3204802](https://patchblox.com/security/data/fix/microsoft/kb3204802.md) | Dec 19, 2016 | | Microsoft | Microsoft .NET Framework 4.6.2 on Windows Server 2016 | | [KB3206632](https://patchblox.com/security/data/fix/microsoft/kb3206632.md) | Dec 13, 2016 | | Microsoft | Microsoft .NET Framework 4.6.2 on Windows Server 2016 (Server Core installation) | | [KB3206632](https://patchblox.com/security/data/fix/microsoft/kb3206632.md) | Dec 13, 2016 | --- Data as of 2026-11-07T06:34:28Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo