CVEs / CVE-2019-1069
CVE-2019-1069: Microsoft Task Scheduler Privilege Escalation Vulnerability
- Known exploited in the CISA KEV catalog since 15 Mar 2022
- high 7.8 CVSS 3.1 (NVD)
- EPSS 6.11% chance of exploitation in the next 30 days, higher than 93% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
A privilege escalation vulnerability exists in the way the Task Scheduler Service validates certain file operations.
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 and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| Microsoft Windows 10 Version 1703 | from 10.0.0, before publication | publication |
| Microsoft Windows 10 Version 1803 | from 10.0.0, before publication | publication |
| Microsoft Windows Server, version 1803 (Server Core Installation) | from 10.0.0, before publication | publication |
| Microsoft Windows 10 Version 1809 | from 10.0.17763.0, before publication | publication |
| Microsoft Windows 10 Version 1809 | from 10.0.0, before publication | publication |
| Microsoft Windows Server 2019 | from 10.0.17763.0, before publication | publication |
| Microsoft Windows Server 2019 (Server Core installation) | from 10.0.17763.0, before publication | publication |
| Microsoft Windows 10 Version 1709 for 32-bit Systems | from 10.0.0, before publication | publication |
| Microsoft Windows 10 Version 1709 | from 10.0.0, before publication | publication |
| Microsoft Windows 10 Version 1903 for 32-bit Systems | from 10.0.0, before publication | publication |
| Microsoft Windows 10 Version 1903 for x64-based Systems | from 10.0.0, before publication | publication |
| Microsoft Windows 10 Version 1903 for ARM64-based Systems | from 10.0.0, before publication | publication |
| Microsoft Windows Server, version 1903 (Server Core installation) | from 10.0.0, before publication | publication |
| Microsoft Windows 10 Version 1507 | from 10.0.10240.0, before publication | publication |
| Microsoft Windows 10 Version 1607 | from 10.0.14393.0, before publication | publication |
| Microsoft Windows Server 2016 | from 10.0.14393.0, before publication | publication |
| Microsoft Windows Server 2016 (Server Core installation) | from 10.0.14393.0, before publication | publication |
| microsoft windows_10 | 1607 | — |
| microsoft windows_10 | 1703 | — |
| microsoft windows_10 | 1709 | — |
| microsoft windows_10 | 1803 | — |
| microsoft windows_server_2016 | 1803 | — |
| microsoft windows_server_2016 | 1903 | — |
| microsoft windows_server_2019 | all versions | — |
Exploitation
| In CISA KEV since | 15 Mar 2022 |
|---|---|
| Due date for US federal agencies | 5 Apr 2022 |
| Used in ransomware campaigns | Known |
| Required action | Apply updates per vendor instructions. |
Severity
| CVSS 3.1 | 7.8 highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:HScored by NVD |
|---|---|
| Weakness | CWE-59 |
References
- CVE-2019-1069 on NVD
- CVE-2019-1069 in the CISA KEV catalog
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2019-1069 Patch, Vendor Advisory
- https://blog.0patch.com/2019/06/another-task-scheduler-0day-another.html Exploit, Third Party Advisory
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1069 Patch, Vendor Advisory
- https://www.kb.cert.org/vuls/id/119704 Third Party Advisory, US Government Resource
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-1069 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.