Intelligence online17 sources monitored8 actively exploited 7d26 published 24hChecked recently
Vulnerability record

CVE-2019-1069

Microsoft Task Scheduler Privilege Escalation Vulnerability

HighExploitation confirmedCISA KEV Used by ransomware
What should I do?

This vulnerability is in the CISA Known Exploited Vulnerabilities catalog: attackers are using it. If you run Task Scheduler, fix it now.

CISA required action: Apply updates per vendor instructions.

US federal civilian agencies must remediate by Apr 5, 2022.

Patch status

Official fix available since

Apply the vendor's update to every affected system. Check the fixed-in versions below where known.

Basis: NVD patch reference

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.

Source: NIST National Vulnerability Database. Official vulnerability data, reproduced as published.

Affected products

ProductVendorSource
Task SchedulerMicrosoftKEV

Sources: KEV = CISA Known Exploited Vulnerabilities catalog. Version details have not been published yet.

Intelligence timeline

Developments from the last 30 days, newest first.

  1. CVSS scoredUpdateKEV

    CVE-2019-1069 scored CVSS 7.8: Microsoft Task Scheduler, Microsoft Task Scheduler Privilege Escalation Vulnerability

    CISA lists this as exploited in the wild and known to be used in ransomware campaigns. Unpatched Task Scheduler systems are exposed to active attacks now.

    Basis: NIST National Vulnerability Database

  2. Patch releasedUpdateKEV

    Patch released for CVE-2019-1069: Microsoft Task Scheduler, Microsoft Task Scheduler Privilege Escalation Vulnerability

    An official fix is now available for Microsoft Task Scheduler. This vulnerability is being exploited, so apply it promptly.

    Basis: NVD patch reference

1 earlier event is available with a subscription. See plans.

Coverage

We have not published a story about this vulnerability yet.

References

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