CVE-2019-1069: Microsoft Task Scheduler Privilege Escalation Vulnerability

High severity, CVSS 7.8. Actively exploited: in CISA KEV since 2022-03-15. EPSS: 6.1% chance of exploitation in the next 30 days.

An elevation of privilege vulnerability exists in the way the Task Scheduler Service validates certain file operations. An attacker who successfully exploited the vulnerability could gain elevated privileges on a victim system. To exploit the vulnerability, an attacker would require unprivileged code execution on a victim system. The security update addresses the vulnerability by correctly validating file operations.

Affected products

• Microsoft Windows 10 1507: affected versions not specified
• Microsoft Windows 10 1607: affected versions not specified
• Microsoft Windows 10 1703: affected versions not specified
• Microsoft Windows 10 1709: affected versions not specified
• Microsoft Windows 10 1803: affected versions not specified
• Microsoft Windows 10 1809: affected versions not specified
• Microsoft Windows 10 1903: affected versions not specified
• Microsoft Windows Server 1803: affected versions not specified
• Microsoft Windows Server 1903: affected versions not specified
• Microsoft Windows Server 2016: affected versions not specified
• Microsoft Windows Server 2019: affected versions not specified

Published 2019-06-12. Last modified 2026-08-12.