# CVE-2019-0656: Windows Kernel Elevation of Privilege Vulnerability CVE-2019-0656 is fixed in 26 products on 1 platform, first by KB4487026, released February 12, 2019. It is not reported as exploited, but the vendor rates exploitation more likely. Patch Radar priority: Urgent. - Web page: https://patchblox.com/security/cve/CVE-2019-0656 - Priority: Urgent - CVSS: 4.7 (Important) - EPSS: 0.0115 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Vendor exploitability assessment: Exploitation More Likely - Published: Feb 12, 2019 - Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2019-0656 ## Description

An elevation of privilege vulnerability exists when the Windows kernel fails to properly handle objects in memory. An attacker who successfully exploited this vulnerability could run arbitrary code in kernel mode. An attacker could then install programs; view, change, or delete data; or create new accounts with full user rights.

To exploit this vulnerability, an attacker would first have to log on to the system. An attacker could then run a specially crafted application to take control of an affected system.

The update addresses the vulnerability by correcting how the Windows kernel handles objects in memory.

## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Microsoft | Windows 10 Version 1607 for 32-bit Systems | 14393.2791 | [KB4487026](https://patchblox.com/security/data/fix/microsoft/kb4487026.md) | Feb 12, 2019 | | Microsoft | Windows 10 Version 1607 for x64-based Systems | 14393.2791 | [KB4487026](https://patchblox.com/security/data/fix/microsoft/kb4487026.md) | Feb 12, 2019 | | Microsoft | Windows 10 Version 1703 for 32-bit Systems | 15063.1631 | [KB4487020](https://patchblox.com/security/data/fix/microsoft/kb4487020.md) | Feb 12, 2019 | | Microsoft | Windows 10 Version 1703 for x64-based Systems | 15063.1631 | [KB4487020](https://patchblox.com/security/data/fix/microsoft/kb4487020.md) | Feb 12, 2019 | | Microsoft | Windows 10 Version 1709 for 32-bit Systems | 16299.967 | [KB4486996](https://patchblox.com/security/data/fix/microsoft/kb4486996.md) | Feb 12, 2019 | | Microsoft | Windows 10 Version 1709 for ARM64-based Systems | 16299.967 | [KB4486996](https://patchblox.com/security/data/fix/microsoft/kb4486996.md) | Feb 12, 2019 | | Microsoft | Windows 10 Version 1709 for x64-based Systems | 16299.967 | [KB4486996](https://patchblox.com/security/data/fix/microsoft/kb4486996.md) | Feb 12, 2019 | | Microsoft | Windows 10 Version 1803 for 32-bit Systems | 17134.590 | [KB4487017](https://patchblox.com/security/data/fix/microsoft/kb4487017.md) | Feb 12, 2019 | | Microsoft | Windows 10 Version 1803 for ARM64-based Systems | 17134.590 | [KB4487017](https://patchblox.com/security/data/fix/microsoft/kb4487017.md) | Feb 12, 2019 | | Microsoft | Windows 10 Version 1803 for x64-based Systems | 17134.590 | [KB4487017](https://patchblox.com/security/data/fix/microsoft/kb4487017.md) | Feb 12, 2019 | | Microsoft | Windows 10 Version 1809 for 32-bit Systems | 17763.316 | [KB4487044](https://patchblox.com/security/data/fix/microsoft/kb4487044.md) | Feb 12, 2019 | | Microsoft | Windows 10 Version 1809 for ARM64-based Systems | 17763.316 | [KB4487044](https://patchblox.com/security/data/fix/microsoft/kb4487044.md) | Feb 12, 2019 | | Microsoft | Windows 10 Version 1809 for x64-based Systems | 17763.316 | [KB4487044](https://patchblox.com/security/data/fix/microsoft/kb4487044.md) | Feb 12, 2019 | | Microsoft | Windows 10 for 32-bit Systems | 10240.18132 | [KB4487018](https://patchblox.com/security/data/fix/microsoft/kb4487018.md) | Feb 12, 2019 | | Microsoft | Windows 10 for x64-based Systems | 10240.18132 | [KB4487018](https://patchblox.com/security/data/fix/microsoft/kb4487018.md) | Feb 12, 2019 | | Microsoft | Windows 8.1 for 32-bit systems | | [KB4487028](https://patchblox.com/security/data/fix/microsoft/kb4487028.md) | Feb 12, 2019 | | Microsoft | Windows 8.1 for 32-bit systems | | [KB4487000](https://patchblox.com/security/data/fix/microsoft/kb4487000.md) | Feb 12, 2019 | | Microsoft | Windows 8.1 for x64-based systems | | [KB4487028](https://patchblox.com/security/data/fix/microsoft/kb4487028.md) | Feb 12, 2019 | | Microsoft | Windows 8.1 for x64-based systems | | [KB4487000](https://patchblox.com/security/data/fix/microsoft/kb4487000.md) | Feb 12, 2019 | | Microsoft | Windows RT 8.1 | | [KB4487000](https://patchblox.com/security/data/fix/microsoft/kb4487000.md) | Feb 12, 2019 | | Microsoft | Windows Server 2012 R2 | | [KB4487028](https://patchblox.com/security/data/fix/microsoft/kb4487028.md) | Feb 12, 2019 | | Microsoft | Windows Server 2012 R2 | | [KB4487000](https://patchblox.com/security/data/fix/microsoft/kb4487000.md) | Feb 12, 2019 | | Microsoft | Windows Server 2012 R2 (Server Core installation) | | [KB4487028](https://patchblox.com/security/data/fix/microsoft/kb4487028.md) | Feb 12, 2019 | | Microsoft | Windows Server 2012 R2 (Server Core installation) | | [KB4487000](https://patchblox.com/security/data/fix/microsoft/kb4487000.md) | Feb 12, 2019 | | Microsoft | Windows Server 2016 | 14393.2791 | [KB4487026](https://patchblox.com/security/data/fix/microsoft/kb4487026.md) | Feb 12, 2019 | | Microsoft | Windows Server 2016 (Server Core installation) | 14393.2791 | [KB4487026](https://patchblox.com/security/data/fix/microsoft/kb4487026.md) | Feb 12, 2019 | | Microsoft | Windows Server 2019 | 17763.316 | [KB4487044](https://patchblox.com/security/data/fix/microsoft/kb4487044.md) | Feb 12, 2019 | | Microsoft | Windows Server 2019 (Server Core installation) | 17763.316 | [KB4487044](https://patchblox.com/security/data/fix/microsoft/kb4487044.md) | Feb 12, 2019 | | Microsoft | Windows Server, version 1709 (Server Core Installation) | 16299.967 | [KB4486996](https://patchblox.com/security/data/fix/microsoft/kb4486996.md) | Feb 12, 2019 | | Microsoft | Windows Server, version 1803 (Server Core Installation) | 17134.590 | [KB4487017](https://patchblox.com/security/data/fix/microsoft/kb4487017.md) | Feb 12, 2019 | --- Data as of 2026-11-07T18:46:35Z 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 Free to use with attribution: show "Data: Patchblox Patch Radar" with a link to https://patchblox.com/security/patch-radar. Terms, including what needs a written agreement: https://patchblox.com/security/patch-radar/use-the-data 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.