# CVE-2019-0985: Microsoft Speech API Remote Code Execution Vulnerability

CVE-2019-0985 is fixed in 5 products on 1 platform, first by KB4503292, released June 11, 2019. It is not reported as exploited. Patch Radar priority: Urgent.

- Web page: https://patchblox.com/security/cve/CVE-2019-0985
- Priority: Urgent
- CVSS: 7.8 (Critical)
- EPSS: 0.0352
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Vendor exploitability assessment: N/A
- Published: Jun 11, 2019
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2019-0985

## Description

<p>A remote code execution vulnerability exists when the Microsoft Speech API (SAPI) improperly handles text-to-speech (TTS) input. The vulnerability could corrupt memory in a way that enables an attacker to execute arbitrary code in the context of the current user.</p> <p>To exploit the vulnerability, an attacker would need to convince a user to open a specially crafted document containing TTS content invoked through a scripting language.</p> <p>The update address the vulnerability by modifying how the system handles objects in memory.</p>

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Microsoft | Windows 7 for 32-bit Systems Service Pack 1 |  | [KB4503292](https://patchblox.com/security/data/fix/microsoft/kb4503292.md) | Jun 11, 2019 |
| Microsoft | Windows 7 for 32-bit Systems Service Pack 1 |  | [KB4503269](https://patchblox.com/security/data/fix/microsoft/kb4503269.md) | Jun 11, 2019 |
| Microsoft | Windows 7 for x64-based Systems Service Pack 1 |  | [KB4503292](https://patchblox.com/security/data/fix/microsoft/kb4503292.md) | Jun 11, 2019 |
| Microsoft | Windows 7 for x64-based Systems Service Pack 1 |  | [KB4503269](https://patchblox.com/security/data/fix/microsoft/kb4503269.md) | Jun 11, 2019 |
| Microsoft | Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 |  | [KB4503292](https://patchblox.com/security/data/fix/microsoft/kb4503292.md) | Jun 11, 2019 |
| Microsoft | Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 |  | [KB4503269](https://patchblox.com/security/data/fix/microsoft/kb4503269.md) | Jun 11, 2019 |
| Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 |  | [KB4503292](https://patchblox.com/security/data/fix/microsoft/kb4503292.md) | Jun 11, 2019 |
| Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 |  | [KB4503269](https://patchblox.com/security/data/fix/microsoft/kb4503269.md) | Jun 11, 2019 |
| Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) |  | [KB4503292](https://patchblox.com/security/data/fix/microsoft/kb4503292.md) | Jun 11, 2019 |
| Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) |  | [KB4503269](https://patchblox.com/security/data/fix/microsoft/kb4503269.md) | Jun 11, 2019 |

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Data as of 2026-11-08T13:06:02Z 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

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