# CVE-2017-11784: Windows Kernel Information Disclosure Vulnerability

CVE-2017-11784 is fixed in 19 products on 1 platform, first by KB4042895, released October 10, 2017. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2017-11784
- Priority: Routine
- CVSS: 4.7 (Important)
- EPSS: 0.0232
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Vendor exploitability assessment: Exploitation Less Likely
- Published: Oct 10, 2017
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2017-11784

## Description

<p>An information disclosure vulnerability exists in the Windows kernel that could allow an attacker to retrieve information that could lead to a <a href="https://technet.microsoft.com/en-us/library/security/dn848375.aspx#ASLR">Kernel Address Space Layout Randomization (ASLR)</a> bypass. An attacker who successfully exploited the vulnerability could retrieve the memory address of a kernel object.</p> <p>To exploit the vulnerability, an attacker would have to log on to an affected system and run a specially crafted application.</p> <p>The security update addresses the vulnerability by correcting how the Windows kernel handles memory addresses.</p>

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Microsoft | Windows 10 for 32-bit Systems | 10240.17643 | [KB4042895](https://patchblox.com/security/data/fix/microsoft/kb4042895.md) | Oct 10, 2017 |
| Microsoft | Windows 10 for x64-based Systems | 10240.17643 | [KB4042895](https://patchblox.com/security/data/fix/microsoft/kb4042895.md) | Oct 10, 2017 |
| Microsoft | Windows 7 for 32-bit Systems Service Pack 1 |  | [KB4041681](https://patchblox.com/security/data/fix/microsoft/kb4041681.md) | Oct 10, 2017 |
| Microsoft | Windows 7 for 32-bit Systems Service Pack 1 |  | [KB4041678](https://patchblox.com/security/data/fix/microsoft/kb4041678.md) | Oct 10, 2017 |
| Microsoft | Windows 7 for x64-based Systems Service Pack 1 |  | [KB4041681](https://patchblox.com/security/data/fix/microsoft/kb4041681.md) | Oct 10, 2017 |
| Microsoft | Windows 7 for x64-based Systems Service Pack 1 |  | [KB4041678](https://patchblox.com/security/data/fix/microsoft/kb4041678.md) | Oct 10, 2017 |
| Microsoft | Windows 8.1 for 32-bit systems |  | [KB4041693](https://patchblox.com/security/data/fix/microsoft/kb4041693.md) | Oct 10, 2017 |
| Microsoft | Windows 8.1 for 32-bit systems |  | [KB4041687](https://patchblox.com/security/data/fix/microsoft/kb4041687.md) | Oct 10, 2017 |
| Microsoft | Windows 8.1 for x64-based systems |  | [KB4041693](https://patchblox.com/security/data/fix/microsoft/kb4041693.md) | Oct 10, 2017 |
| Microsoft | Windows 8.1 for x64-based systems |  | [KB4041687](https://patchblox.com/security/data/fix/microsoft/kb4041687.md) | Oct 10, 2017 |
| Microsoft | Windows RT 8.1 |  | [KB4041693](https://patchblox.com/security/data/fix/microsoft/kb4041693.md) | Oct 10, 2017 |
| Microsoft | Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 |  | [KB4041681](https://patchblox.com/security/data/fix/microsoft/kb4041681.md) | Oct 10, 2017 |
| Microsoft | Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 |  | [KB4041678](https://patchblox.com/security/data/fix/microsoft/kb4041678.md) | Oct 10, 2017 |
| Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 |  | [KB4041681](https://patchblox.com/security/data/fix/microsoft/kb4041681.md) | Oct 10, 2017 |
| Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 |  | [KB4041678](https://patchblox.com/security/data/fix/microsoft/kb4041678.md) | Oct 10, 2017 |
| Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) |  | [KB4041681](https://patchblox.com/security/data/fix/microsoft/kb4041681.md) | Oct 10, 2017 |
| Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) |  | [KB4041678](https://patchblox.com/security/data/fix/microsoft/kb4041678.md) | Oct 10, 2017 |
| Microsoft | Windows Server 2008 for 32-bit Systems Service Pack 2 |  | [KB4041671](https://patchblox.com/security/data/fix/microsoft/kb4041671.md) | Oct 10, 2017 |
| Microsoft | Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) |  | [KB4041671](https://patchblox.com/security/data/fix/microsoft/kb4041671.md) | Oct 10, 2017 |
| Microsoft | Windows Server 2008 for Itanium-Based Systems Service Pack 2 |  | [KB4041671](https://patchblox.com/security/data/fix/microsoft/kb4041671.md) | Oct 10, 2017 |
| Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 |  | [KB4041671](https://patchblox.com/security/data/fix/microsoft/kb4041671.md) | Oct 10, 2017 |
| Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) |  | [KB4041671](https://patchblox.com/security/data/fix/microsoft/kb4041671.md) | Oct 10, 2017 |
| Microsoft | Windows Server 2012 |  | [KB4041690](https://patchblox.com/security/data/fix/microsoft/kb4041690.md) | Oct 10, 2017 |
| Microsoft | Windows Server 2012 |  | [KB4041679](https://patchblox.com/security/data/fix/microsoft/kb4041679.md) | Oct 10, 2017 |
| Microsoft | Windows Server 2012 (Server Core installation) |  | [KB4041690](https://patchblox.com/security/data/fix/microsoft/kb4041690.md) | Oct 10, 2017 |
| Microsoft | Windows Server 2012 (Server Core installation) |  | [KB4041679](https://patchblox.com/security/data/fix/microsoft/kb4041679.md) | Oct 10, 2017 |
| Microsoft | Windows Server 2012 R2 |  | [KB4041693](https://patchblox.com/security/data/fix/microsoft/kb4041693.md) | Oct 10, 2017 |
| Microsoft | Windows Server 2012 R2 |  | [KB4041687](https://patchblox.com/security/data/fix/microsoft/kb4041687.md) | Oct 10, 2017 |
| Microsoft | Windows Server 2012 R2 (Server Core installation) |  | [KB4041693](https://patchblox.com/security/data/fix/microsoft/kb4041693.md) | Oct 10, 2017 |
| Microsoft | Windows Server 2012 R2 (Server Core installation) |  | [KB4041687](https://patchblox.com/security/data/fix/microsoft/kb4041687.md) | Oct 10, 2017 |

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Data as of 2026-11-07T12:40:37Z 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
