# CVE-2018-0847: Windows Scripting Engine Memory Corruption Vulnerability

CVE-2018-0847 is fixed in 29 products on 1 platform, first by KB4074591, released February 13, 2018. 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-2018-0847
- Priority: Urgent
- CVSS: 4.3 (Important)
- EPSS: 0.0593
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Vendor exploitability assessment: Exploitation More Likely
- Published: Feb 13, 2018
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2018-0847

## Description

<p>An information disclosure vulnerability exists when VBScript improperly discloses the contents of its memory, which could provide an attacker with information to further compromise the user’s computer or data.</p> <p>To exploit the vulnerability, an attacker must know the memory address of where the object was created.</p> <p>The update addresses the vulnerability by changing the way certain functions handle objects in memory.</p>

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Microsoft | Windows 10 Version 1511 for 32-bit Systems | 10586.1417 | [KB4074591](https://patchblox.com/security/data/fix/microsoft/kb4074591.md) | Feb 13, 2018 |
| Microsoft | Windows 10 Version 1511 for x64-based Systems | 10586.1417 | [KB4074591](https://patchblox.com/security/data/fix/microsoft/kb4074591.md) | Feb 13, 2018 |
| Microsoft | Windows 10 Version 1607 for 32-bit Systems | 14393.2068 | [KB4074590](https://patchblox.com/security/data/fix/microsoft/kb4074590.md) | Feb 13, 2018 |
| Microsoft | Windows 10 Version 1607 for x64-based Systems | 14393.2068 | [KB4074590](https://patchblox.com/security/data/fix/microsoft/kb4074590.md) | Feb 13, 2018 |
| Microsoft | Windows 10 Version 1703 for 32-bit Systems | 15063.909 | [KB4074592](https://patchblox.com/security/data/fix/microsoft/kb4074592.md) | Feb 13, 2018 |
| Microsoft | Windows 10 Version 1703 for x64-based Systems | 15063.909 | [KB4074592](https://patchblox.com/security/data/fix/microsoft/kb4074592.md) | Feb 13, 2018 |
| Microsoft | Windows 10 Version 1709 for 32-bit Systems | 16299.248 | [KB4074588](https://patchblox.com/security/data/fix/microsoft/kb4074588.md) | Feb 13, 2018 |
| Microsoft | Windows 10 Version 1709 for x64-based Systems | 16299.248 | [KB4074588](https://patchblox.com/security/data/fix/microsoft/kb4074588.md) | Feb 13, 2018 |
| Microsoft | Windows 10 for 32-bit Systems | 10240.17770 | [KB4074596](https://patchblox.com/security/data/fix/microsoft/kb4074596.md) | Feb 13, 2018 |
| Microsoft | Windows 10 for x64-based Systems | 10240.17770 | [KB4074596](https://patchblox.com/security/data/fix/microsoft/kb4074596.md) | Feb 13, 2018 |
| Microsoft | Windows 7 for 32-bit Systems Service Pack 1 |  | [KB4074598](https://patchblox.com/security/data/fix/microsoft/kb4074598.md) | Feb 13, 2018 |
| Microsoft | Windows 7 for 32-bit Systems Service Pack 1 |  | [KB4074587](https://patchblox.com/security/data/fix/microsoft/kb4074587.md) | Feb 13, 2018 |
| Microsoft | Windows 7 for x64-based Systems Service Pack 1 |  | [KB4074598](https://patchblox.com/security/data/fix/microsoft/kb4074598.md) | Feb 13, 2018 |
| Microsoft | Windows 7 for x64-based Systems Service Pack 1 |  | [KB4074587](https://patchblox.com/security/data/fix/microsoft/kb4074587.md) | Feb 13, 2018 |
| Microsoft | Windows 8.1 for 32-bit systems |  | [KB4074597](https://patchblox.com/security/data/fix/microsoft/kb4074597.md) | Feb 13, 2018 |
| Microsoft | Windows 8.1 for 32-bit systems |  | [KB4074594](https://patchblox.com/security/data/fix/microsoft/kb4074594.md) | Feb 13, 2018 |
| Microsoft | Windows 8.1 for x64-based systems |  | [KB4074597](https://patchblox.com/security/data/fix/microsoft/kb4074597.md) | Feb 13, 2018 |
| Microsoft | Windows 8.1 for x64-based systems |  | [KB4074594](https://patchblox.com/security/data/fix/microsoft/kb4074594.md) | Feb 13, 2018 |
| Microsoft | Windows RT 8.1 |  | [KB4074594](https://patchblox.com/security/data/fix/microsoft/kb4074594.md) | Feb 13, 2018 |
| Microsoft | Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 |  | [KB4074598](https://patchblox.com/security/data/fix/microsoft/kb4074598.md) | Feb 13, 2018 |
| Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 |  | [KB4074598](https://patchblox.com/security/data/fix/microsoft/kb4074598.md) | Feb 13, 2018 |
| Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) |  | [KB4074598](https://patchblox.com/security/data/fix/microsoft/kb4074598.md) | Feb 13, 2018 |
| Microsoft | Windows Server 2008 for 32-bit Systems Service Pack 2 |  | [KB4034044](https://patchblox.com/security/data/fix/microsoft/kb4034044.md) | Feb 13, 2018 |
| Microsoft | Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) |  | [KB4034044](https://patchblox.com/security/data/fix/microsoft/kb4034044.md) | Feb 13, 2018 |
| Microsoft | Windows Server 2008 for Itanium-Based Systems Service Pack 2 |  | [KB4034044](https://patchblox.com/security/data/fix/microsoft/kb4034044.md) | Feb 13, 2018 |
| Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 |  | [KB4034044](https://patchblox.com/security/data/fix/microsoft/kb4034044.md) | Feb 13, 2018 |
| Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) |  | [KB4034044](https://patchblox.com/security/data/fix/microsoft/kb4034044.md) | Feb 13, 2018 |
| Microsoft | Windows Server 2012 |  | [KB4074593](https://patchblox.com/security/data/fix/microsoft/kb4074593.md) | Feb 13, 2018 |
| Microsoft | Windows Server 2012 |  | [KB4074589](https://patchblox.com/security/data/fix/microsoft/kb4074589.md) | Feb 13, 2018 |
| Microsoft | Windows Server 2012 (Server Core installation) |  | [KB4074593](https://patchblox.com/security/data/fix/microsoft/kb4074593.md) | Feb 13, 2018 |
| Microsoft | Windows Server 2012 (Server Core installation) |  | [KB4074589](https://patchblox.com/security/data/fix/microsoft/kb4074589.md) | Feb 13, 2018 |
| Microsoft | Windows Server 2012 R2 |  | [KB4074597](https://patchblox.com/security/data/fix/microsoft/kb4074597.md) | Feb 13, 2018 |
| Microsoft | Windows Server 2012 R2 |  | [KB4074594](https://patchblox.com/security/data/fix/microsoft/kb4074594.md) | Feb 13, 2018 |
| Microsoft | Windows Server 2012 R2 (Server Core installation) |  | [KB4074597](https://patchblox.com/security/data/fix/microsoft/kb4074597.md) | Feb 13, 2018 |
| Microsoft | Windows Server 2012 R2 (Server Core installation) |  | [KB4074594](https://patchblox.com/security/data/fix/microsoft/kb4074594.md) | Feb 13, 2018 |
| Microsoft | Windows Server 2016 | 14393.2068 | [KB4074590](https://patchblox.com/security/data/fix/microsoft/kb4074590.md) | Feb 13, 2018 |
| Microsoft | Windows Server 2016 (Server Core installation) | 14393.2068 | [KB4074590](https://patchblox.com/security/data/fix/microsoft/kb4074590.md) | Feb 13, 2018 |

---

Data as of 2026-11-09T01:18:40Z 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.
