# CVE-2019-0768: Internet Explorer Security Feature Bypass Vulnerability

CVE-2019-0768 is fixed in 10 products on 1 platform, first by KB4489886, released March 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-2019-0768
- Priority: Urgent
- CVSS: 4.3 (Important)
- EPSS: 0.4850
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Vendor exploitability assessment: Exploitation More Likely
- Published: Mar 12, 2019
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2019-0768

## Description

<p>A security feature bypass vulnerability exists when Internet Explorer VBScript execution policy does not properly restrict VBScript under specific conditions, and to allow requests that should otherwise be ignored. An attacker who successfully exploited the vulnerability could force the browser to send data that would otherwise be restricted.</p> <p>In a web-based attack scenario, an attacker could host a website in an attempt to exploit this vulnerability. In addition, compromised websites and websites that accept or host user-provided content could contain specially crafted content that could exploit the vulnerability.</p> <p>The update addresses the vulnerability by fixing how the Internet Explorer VBScript execution policy validates embedded VBScript content.</p>

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Microsoft | Internet Explorer 11 on Windows 10 Version 1709 for 32-bit Systems | 16299.1029 | [KB4489886](https://patchblox.com/security/data/fix/microsoft/kb4489886.md) | Mar 12, 2019 |
| Microsoft | Internet Explorer 11 on Windows 10 Version 1709 for ARM64-based Systems | 16299.1029 | [KB4489886](https://patchblox.com/security/data/fix/microsoft/kb4489886.md) | Mar 12, 2019 |
| Microsoft | Internet Explorer 11 on Windows 10 Version 1709 for x64-based Systems | 16299.1029 | [KB4489886](https://patchblox.com/security/data/fix/microsoft/kb4489886.md) | Mar 12, 2019 |
| Microsoft | Internet Explorer 11 on Windows 10 Version 1803 for 32-bit Systems | 17134.648 | [KB4489868](https://patchblox.com/security/data/fix/microsoft/kb4489868.md) | Mar 12, 2019 |
| Microsoft | Internet Explorer 11 on Windows 10 Version 1803 for ARM64-based Systems | 17134.648 | [KB4489868](https://patchblox.com/security/data/fix/microsoft/kb4489868.md) | Mar 12, 2019 |
| Microsoft | Internet Explorer 11 on Windows 10 Version 1803 for x64-based Systems | 17134.648 | [KB4489868](https://patchblox.com/security/data/fix/microsoft/kb4489868.md) | Mar 12, 2019 |
| Microsoft | Internet Explorer 11 on Windows 10 Version 1809 for 32-bit Systems | 17763.379 | [KB4489899](https://patchblox.com/security/data/fix/microsoft/kb4489899.md) | Mar 12, 2019 |
| Microsoft | Internet Explorer 11 on Windows 10 Version 1809 for ARM64-based Systems | 17763.379 | [KB4489899](https://patchblox.com/security/data/fix/microsoft/kb4489899.md) | Mar 12, 2019 |
| Microsoft | Internet Explorer 11 on Windows 10 Version 1809 for x64-based Systems | 17763.379 | [KB4489899](https://patchblox.com/security/data/fix/microsoft/kb4489899.md) | Mar 12, 2019 |
| Microsoft | Internet Explorer 11 on Windows Server 2019 | 17763.379 | [KB4489899](https://patchblox.com/security/data/fix/microsoft/kb4489899.md) | Mar 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.