# CVE-2019-0776: Win32k Information Disclosure Vulnerability CVE-2019-0776 is fixed in 21 products on 1 platform, first by KB4489882, released March 12, 2019. It is not reported as exploited. Patch Radar priority: Routine. - Web page: https://patchblox.com/security/cve/CVE-2019-0776 - Priority: Routine - CVSS: 4.7 (Important) - EPSS: 0.0162 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Vendor exploitability assessment: Exploitation Less Likely - Published: Mar 12, 2019 - Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2019-0776 ## Description

An information disclosure vulnerability exists when the win32k component improperly provides kernel information. An attacker who successfully exploited the vulnerability could obtain information to further compromise the user’s system.

To exploit the vulnerability, an attacker would have to either log on locally to an affected system, or convince a locally authenticated user to execute a specially crafted application.

The security update addresses the vulnerability by correcting how win32k handles objects in memory.

## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Microsoft | Windows 10 Version 1607 for 32-bit Systems | 14393.2848 | [KB4489882](https://patchblox.com/security/data/fix/microsoft/kb4489882.md) | Mar 12, 2019 | | Microsoft | Windows 10 Version 1607 for x64-based Systems | 14393.2848 | [KB4489882](https://patchblox.com/security/data/fix/microsoft/kb4489882.md) | Mar 12, 2019 | | Microsoft | Windows 10 Version 1703 for 32-bit Systems | 15063.1689 | [KB4489871](https://patchblox.com/security/data/fix/microsoft/kb4489871.md) | Mar 12, 2019 | | Microsoft | Windows 10 Version 1703 for x64-based Systems | 15063.1689 | [KB4489871](https://patchblox.com/security/data/fix/microsoft/kb4489871.md) | Mar 12, 2019 | | Microsoft | Windows 10 Version 1709 for 32-bit Systems | 16299.1029 | [KB4489886](https://patchblox.com/security/data/fix/microsoft/kb4489886.md) | Mar 12, 2019 | | Microsoft | Windows 10 Version 1709 for ARM64-based Systems | 16299.1029 | [KB4489886](https://patchblox.com/security/data/fix/microsoft/kb4489886.md) | Mar 12, 2019 | | Microsoft | Windows 10 Version 1709 for x64-based Systems | 16299.1029 | [KB4489886](https://patchblox.com/security/data/fix/microsoft/kb4489886.md) | Mar 12, 2019 | | Microsoft | Windows 10 Version 1803 for 32-bit Systems | 17134.648 | [KB4489868](https://patchblox.com/security/data/fix/microsoft/kb4489868.md) | Mar 12, 2019 | | Microsoft | Windows 10 Version 1803 for ARM64-based Systems | 17134.648 | [KB4489868](https://patchblox.com/security/data/fix/microsoft/kb4489868.md) | Mar 12, 2019 | | Microsoft | Windows 10 Version 1803 for x64-based Systems | 17134.648 | [KB4489868](https://patchblox.com/security/data/fix/microsoft/kb4489868.md) | Mar 12, 2019 | | Microsoft | Windows 10 Version 1809 for 32-bit Systems | 17763.379 | [KB4489899](https://patchblox.com/security/data/fix/microsoft/kb4489899.md) | Mar 12, 2019 | | Microsoft | Windows 10 Version 1809 for ARM64-based Systems | 17763.379 | [KB4489899](https://patchblox.com/security/data/fix/microsoft/kb4489899.md) | Mar 12, 2019 | | Microsoft | Windows 10 Version 1809 for x64-based Systems | 17763.379 | [KB4489899](https://patchblox.com/security/data/fix/microsoft/kb4489899.md) | Mar 12, 2019 | | Microsoft | Windows 10 for 32-bit Systems | 10240.18158 | [KB4489872](https://patchblox.com/security/data/fix/microsoft/kb4489872.md) | Mar 12, 2019 | | Microsoft | Windows 10 for x64-based Systems | 10240.18158 | [KB4489872](https://patchblox.com/security/data/fix/microsoft/kb4489872.md) | Mar 12, 2019 | | Microsoft | Windows Server 2016 | 14393.2848 | [KB4489882](https://patchblox.com/security/data/fix/microsoft/kb4489882.md) | Mar 12, 2019 | | Microsoft | Windows Server 2016 (Server Core installation) | 14393.2848 | [KB4489882](https://patchblox.com/security/data/fix/microsoft/kb4489882.md) | Mar 12, 2019 | | Microsoft | Windows Server 2019 | 17763.379 | [KB4489899](https://patchblox.com/security/data/fix/microsoft/kb4489899.md) | Mar 12, 2019 | | Microsoft | Windows Server 2019 (Server Core installation) | 17763.379 | [KB4489899](https://patchblox.com/security/data/fix/microsoft/kb4489899.md) | Mar 12, 2019 | | Microsoft | Windows Server, version 1709 (Server Core Installation) | 16299.1029 | [KB4489886](https://patchblox.com/security/data/fix/microsoft/kb4489886.md) | Mar 12, 2019 | | Microsoft | Windows Server, version 1803 (Server Core Installation) | 17134.648 | [KB4489868](https://patchblox.com/security/data/fix/microsoft/kb4489868.md) | Mar 12, 2019 | --- 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