# CVE-2017-11815: Windows SMB Information Disclosure Vulnerability CVE-2017-11815 is fixed in 27 products on 1 platform, first by KB4041689, released October 10, 2017. It is not reported as exploited. Patch Radar priority: Routine. - Web page: https://patchblox.com/security/cve/CVE-2017-11815 - Priority: Routine - CVSS: 6.4 (Important) - EPSS: 0.1335 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Published: Oct 10, 2017 - Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2017-11815 ## Description

An information disclosure vulnerability exists in the way that the Windows SMB Server handles certain requests. An authenticated attacker who successfully exploited this vulnerability could craft a special packet, which could lead to information disclosure from the server.

To exploit the vulnerability, an attacker would have to be able to authenticate and send SMB messages to an impacted Windows SMB Server

The security update addresses the vulnerability by correcting how Windows SMB Server handles authenticated requests.

## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Microsoft | Windows 10 Version 1511 for 32-bit Systems | 10586.1176 | [KB4041689](https://patchblox.com/security/data/fix/microsoft/kb4041689.md) | Oct 10, 2017 | | Microsoft | Windows 10 Version 1511 for x64-based Systems | 10586.1176 | [KB4041689](https://patchblox.com/security/data/fix/microsoft/kb4041689.md) | Oct 10, 2017 | | Microsoft | Windows 10 Version 1607 for 32-bit Systems | 14393.1770 | [KB4041691](https://patchblox.com/security/data/fix/microsoft/kb4041691.md) | Oct 10, 2017 | | Microsoft | Windows 10 Version 1607 for x64-based Systems | 14393.1770 | [KB4041691](https://patchblox.com/security/data/fix/microsoft/kb4041691.md) | Oct 10, 2017 | | Microsoft | Windows 10 Version 1703 for 32-bit Systems | 15063.674 | [KB4041676](https://patchblox.com/security/data/fix/microsoft/kb4041676.md) | Oct 10, 2017 | | Microsoft | Windows 10 Version 1703 for x64-based Systems | 15063.674 | [KB4041676](https://patchblox.com/security/data/fix/microsoft/kb4041676.md) | Oct 10, 2017 | | 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 | | [KB4041995](https://patchblox.com/security/data/fix/microsoft/kb4041995.md) | Oct 10, 2017 | | Microsoft | Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) | | [KB4041995](https://patchblox.com/security/data/fix/microsoft/kb4041995.md) | Oct 10, 2017 | | Microsoft | Windows Server 2008 for Itanium-Based Systems Service Pack 2 | | [KB4041995](https://patchblox.com/security/data/fix/microsoft/kb4041995.md) | Oct 10, 2017 | | Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 | | [KB4041995](https://patchblox.com/security/data/fix/microsoft/kb4041995.md) | Oct 10, 2017 | | Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) | | [KB4041995](https://patchblox.com/security/data/fix/microsoft/kb4041995.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 | | Microsoft | Windows Server 2016 | 14393.1770 | [KB4041691](https://patchblox.com/security/data/fix/microsoft/kb4041691.md) | Oct 10, 2017 | | Microsoft | Windows Server 2016 (Server Core installation) | 14393.1770 | [KB4041691](https://patchblox.com/security/data/fix/microsoft/kb4041691.md) | Oct 10, 2017 | --- Data as of 2026-11-07T18:46:35Z UTC. 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