CVE-2019-1069
HighExploitedPublic exploitAn elevation of privilege vulnerability exists in the way the Task Scheduler Service validates certain file operations.
Published Jun 12, 2019 · Updated Aug 12, 2026
Key Facts
Patch immediately- CVE-2019-1069 is a high-severity vulnerability (CVSS 7.8 v3.1) affecting Windows 10 (Microsoft), Windows 10 1507 (Microsoft), Windows 10 1607 (Microsoft) and 22 more products.
- It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Apr 16, 2021 and is known to be used in ransomware campaigns. Public exploit code is available.
- EPSS estimates a 6.1% probability of exploitation in the next 30 days.
- Fixed versions are available, including Windows 10 Version 1507 publication, Windows 10 Version 1607 publication, Windows 10 Version 1703 publication.
- Brandefense priority: patch immediately, because it is listed as exploited in the wild.
CVSS v3.1
7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
6.1%
Higher than 93.3% of all scored CVEs
Exploited in the wild
Yes
4 catalog listings, used by ransomware
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2019-1069 brief as a PDF
Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.
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.
Known-Exploited Catalog Listings
| Catalog | Added | Remediation due | Ransomware use |
|---|---|---|---|
| CISA KEV | Mar 15, 2022 | Apr 5, 2022 | Known |
| Industry KEV feed | Apr 16, 2021 | Apr 5, 2022 | Known |
| CIRCL KEV | Mar 15, 2022 | Apr 5, 2022 | Known |
| ENISA EUVD | Mar 15, 2022 | n/a | Not reported |
Required action: Apply updates per vendor instructions.
Affected Products
37 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| Windows 10Microsoft | See advisory | n/a |
| Windows 10 1507Microsoft | See advisory | n/a |
| Windows 10 1607Microsoft | See advisory | n/a |
| Windows 10 1703Microsoft | See advisory | n/a |
| Windows 10 1709Microsoft | See advisory | n/a |
Patched Releases
Windows 10 Version 1507
publication
Windows 10 Version 1607
publication
Windows 10 Version 1703
publication
Windows 10 Version 1709
publication
Windows 10 Version 1709 for 32-bit Systems
publication
Windows 10 Version 1803
publication
Windows 10 Version 1809
publication
Windows 10 Version 1903 for 32-bit Systems
publication
Windows 10 Version 1903 for ARM64-based Systems
publication
Windows 10 Version 1903 for x64-based Systems
publication
Windows Server 2016
publication
Windows Server 2016 (Server Core installation)
publication
Windows Server 2019
publication
Windows Server 2019 (Server Core installation)
publication
Windows Server, version 1803 (Server Core Installation)
publication
Windows Server, version 1903 (Server Core installation)
publication
Timeline
Publicly disclosed
Jun 12, 2019
Added to Industry KEV feed
Apr 16, 2021
Added to CISA KEV
Mar 15, 2022
Added to CIRCL KEV
Mar 15, 2022
Added to ENISA EUVD
Mar 15, 2022
Last updated
Aug 12, 2026
Weakness Type
- CWE-59 Improper Link Resolution Before File Access ('Link Following')
References
- advisoryVU#119704
- patchTask Scheduler Elevation of Privilege Vulnerability
- patchhttps://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1069
- exploithttps://blog.0patch.com/2019/06/another-task-scheduler-0day-another.html
- exploitVulnCheck exploitation report
FAQ
Common Questions.
An elevation of privilege vulnerability exists in the way the Task Scheduler Service validates certain file operations.
Affected: Windows 10 (Microsoft); Windows 10 1507 (Microsoft); Windows 10 1607 (Microsoft), among others. The full list is in the CVE brief.
It is exploited in the wild, listed in CISA KEV, Industry KEV feed, CIRCL KEV, ENISA EUVD since Apr 16, 2021 and is known to be used in ransomware campaigns.
Yes. It was added on Mar 15, 2022 with a federal remediation due date of Apr 5, 2022.
Public exploit code is available.
Fixed versions are available, including Windows 10 Version 1507 publication, Windows 10 Version 1607 publication, Windows 10 Version 1703 publication.
Brandefense priority: patch immediately, because it is listed as exploited in the wild.
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