What’s Vulnerable › Vulnerabilities

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

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: yes — in CISA KEV since 2022-03-15
• EPSS: 6.1% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2019-06-12 · updated 2026-08-12
• Weakness: CWE-59

Description

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 Version 1507: all versions
• Microsoft Windows 10 1607: all versions
• Microsoft Corporation Windows 10 1703: all versions
• Microsoft Windows 10 1709: all versions
• Microsoft Windows 10 1803: all versions
• Microsoft Windows 10: all versions
• Microsoft Windows 10 1903: all versions
• Microsoft Windows Server 1803: all versions
• Microsoft Windows Server 1903: all versions
• Microsoft Windows Server 2016: all versions
• Microsoft Windows Server 2019: all versions

References

• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2019-1069
• https://blog.0patch.com/2019/06/another-task-scheduler-0day-another.html
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1069
• https://www.kb.cert.org/vuls/id/119704
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-1069

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