CVE-2019-0603: Microsoft Windows 10

High severity, CVSS 7.5. EPSS: 34.2% chance of exploitation in the next 30 days.

A remote code execution vulnerability exists in the way that Windows Deployment Services TFTP Server handles objects in memory. An attacker who successfully exploited the vulnerability could execute arbitrary code with elevated permissions on a target system. To exploit the vulnerability, an attacker could create a specially crafted request, causing Windows to execute arbitrary code with elevated permissions. The security update addresses the vulnerability by correcting how Windows Deployment Services TFTP Server handles objects in memory, aka 'Windows Deployment Services TFTP Server Remote Code Execution Vulnerability'.

Affected products

• Microsoft Windows 10: version 1607 only; version 1803 only; version 1809 only
• Microsoft Windows 7: affected versions not specified
• Microsoft Windows 8.1: affected versions not specified
• Microsoft Windows Rt 8.1: affected versions not specified
• Microsoft Windows Server 2008: affected versions not specified; version r2 only
• Microsoft Windows Server 2012: affected versions not specified; version r2 only
• Microsoft Windows Server 2016: affected versions not specified; version 1803 only
• Microsoft Windows Server 2019: affected versions not specified

Published 2019-04-08. Last modified 2026-06-17.