Task Scheduler Elevation of Privilege Vulnerability
Summary
| CVE | CVE-2019-1069 |
|---|---|
| State | PUBLISHED |
| Assigner | microsoft |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2019-06-12 14:29:04 UTC |
| Updated | 2026-08-12 05:17:22 UTC |
| 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. |
Risk And Classification
Primary CVSS: v3.1 7.8 HIGH from [email protected]
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS: 0.061170000 probability, percentile 0.927780000 (date 2026-08-13)
CISA KEV: Listed on 2022-03-15; due 2022-04-05; ransomware use Known
Problem Types: CWE-59 | Elevation of Privilege | CWE-59 CWE-59 Improper Link Resolution Before File Access ('Link Following')
| Version | Source | Type | Score | Severity | Vector |
|---|---|---|---|---|---|
| 3.1 | [email protected] | Primary | 7.8 | HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| 3.1 | [email protected] | Secondary | 7.8 | HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| 3.1 | CNA | CVSS | 7.8 | HIGH | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C |
| 2.0 | [email protected] | Primary | 7.2 | AV:L/AC:L/Au:N/C:C/I:C/A:C |
CVSS v3.1 Breakdown
Attack Vector
LocalAttack Complexity
LowPrivileges Required
LowUser Interaction
NoneScope
UnchangedConfidentiality
HighIntegrity
HighAvailability
HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v2.0 Breakdown
Access Vector
LocalAccess Complexity
LowAuthentication
NoneConfidentiality
CompleteIntegrity
CompleteAvailability
CompleteAV:L/AC:L/Au:N/C:C/I:C/A:C
CISA Known Exploited Vulnerability
| Vendor | Microsoft |
|---|---|
| Product | Task Scheduler |
| Name | Microsoft Task Scheduler Privilege Escalation Vulnerability |
| Required Action | Apply updates per vendor instructions. |
| Notes | https://nvd.nist.gov/vuln/detail/CVE-2019-1069 |
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| Operating System | Microsoft | Windows 10 1507 | - | All | All | All |
| Operating System | Microsoft | Windows 10 1607 | - | All | All | All |
| Operating System | Microsoft | Windows 10 1703 | - | All | All | All |
| Operating System | Microsoft | Windows 10 1709 | - | All | All | All |
| Operating System | Microsoft | Windows 10 1803 | - | All | All | All |
| Operating System | Microsoft | Windows 10 1809 | - | All | All | All |
| Operating System | Microsoft | Windows 10 1903 | - | All | All | All |
| Operating System | Microsoft | Windows Server 1803 | - | All | All | All |
| Operating System | Microsoft | Windows Server 1903 | - | All | All | All |
| Operating System | Microsoft | Windows Server 2016 | - | All | All | All |
| Operating System | Microsoft | Windows Server 2019 | - | All | All | All |
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Microsoft | Windows 10 Version 1703 | affected 10.0.0 publication custom | 32-bit Systems, x64-based Systems |
| CNA | Microsoft | Windows 10 Version 1803 | affected 10.0.0 publication custom | 32-bit Systems, x64-based Systems, ARM64-based Systems |
| CNA | Microsoft | Windows Server Version 1803 Server Core Installation | affected 10.0.0 publication custom | x64-based Systems |
| CNA | Microsoft | Windows 10 Version 1809 | affected 10.0.17763.0 publication custom | 32-bit Systems, x64-based Systems |
| CNA | Microsoft | Windows 10 Version 1809 | affected 10.0.0 publication custom | ARM64-based Systems |
| CNA | Microsoft | Windows Server 2019 | affected 10.0.17763.0 publication custom | x64-based Systems |
| CNA | Microsoft | Windows Server 2019 Server Core Installation | affected 10.0.17763.0 publication custom | x64-based Systems |
| CNA | Microsoft | Windows 10 Version 1709 For 32-bit Systems | affected 10.0.0 publication custom | 32-bit Systems |
| CNA | Microsoft | Windows 10 Version 1709 | affected 10.0.0 publication custom | x64-based Systems, ARM64-based Systems |
| CNA | Microsoft | Windows 10 Version 1903 For 32-bit Systems | affected 10.0.0 publication custom | Unknown |
| CNA | Microsoft | Windows 10 Version 1903 For X64-based Systems | affected 10.0.0 publication custom | Unknown |
| CNA | Microsoft | Windows 10 Version 1903 For ARM64-based Systems | affected 10.0.0 publication custom | Unknown |
| CNA | Microsoft | Windows Server Version 1903 Server Core Installation | affected 10.0.0 publication custom | x64-based Systems |
| CNA | Microsoft | Windows 10 Version 1507 | affected 10.0.10240.0 publication custom | 32-bit Systems, x64-based Systems |
| CNA | Microsoft | Windows 10 Version 1607 | affected 10.0.14393.0 publication custom | 32-bit Systems, x64-based Systems |
| CNA | Microsoft | Windows Server 2016 | affected 10.0.14393.0 publication custom | x64-based Systems |
| CNA | Microsoft | Windows Server 2016 Server Core Installation | affected 10.0.14393.0 publication custom | x64-based Systems |
| ADP | Microsoft | Windows 10 | affected 1607 | Not specified |
| ADP | Microsoft | Windows 10 | affected 1703 | Not specified |
| ADP | Microsoft | Windows 10 | affected 1709 | Not specified |
| ADP | Microsoft | Windows 10 | affected 1803 | Not specified |
| ADP | Microsoft | Windows 10 | affected 1607 | Not specified |
| ADP | Microsoft | Windows 10 | affected 1703 | Not specified |
| ADP | Microsoft | Windows 10 | affected 1709 | Not specified |
| ADP | Microsoft | Windows 10 | affected 1803 | Not specified |
| ADP | Microsoft | Windows 10 | affected 1607 | Not specified |
| ADP | Microsoft | Windows 10 | affected 1703 | Not specified |
| ADP | Microsoft | Windows 10 | affected 1709 | Not specified |
| ADP | Microsoft | Windows 10 | affected 1803 | Not specified |
| ADP | Microsoft | Windows 10 | affected 1607 | Not specified |
| ADP | Microsoft | Windows 10 | affected 1703 | Not specified |
| ADP | Microsoft | Windows 10 | affected 1709 | Not specified |
| ADP | Microsoft | Windows 10 | affected 1803 | Not specified |
| ADP | Microsoft | Windows Server 2016 | affected 1803 | Not specified |
| ADP | Microsoft | Windows Server 2016 | affected 1903 | Not specified |
| ADP | Microsoft | Windows Server 2016 | affected 1803 | Not specified |
| ADP | Microsoft | Windows Server 2016 | affected 1903 | Not specified |
| ADP | Microsoft | Windows Server 2019 | affected * custom | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| www.cisa.gov/known-exploited-vulnerabilities-catalog | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | www.cisa.gov | US Government Resource |
| VU#119704 - Microsoft Windows Task Scheduler SetJobFileSecurityByName privilege escalation vulnerability | af854a3a-2127-422b-91ae-364da2661108 | www.kb.cert.org | Third Party Advisory, US Government Resource |
| msrc.microsoft.com/update-guide/vulnerability/CVE-2019-1069 | [email protected] | msrc.microsoft.com | Patch, Vendor Advisory |
| portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1069 | af854a3a-2127-422b-91ae-364da2661108 | portal.msrc.microsoft.com | Patch, Vendor Advisory |
| 0patch Blog: Another Task Scheduler 0day, Another Task Scheduler Micropatch (The SandboxEscaper Saga) | af854a3a-2127-422b-91ae-364da2661108 | blog.0patch.com | Exploit, Third Party Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
| CISA Known Exploited Vulnerabilities catalog | CISA | www.cisa.gov | kev |
No vendor comments have been submitted for this CVE.
Additional Advisory Data
| Source | Time | Event |
|---|---|---|
| ADP | 2022-03-15T00:00:00.000Z | CVE-2019-1069 added to CISA KEV |
There are currently no legacy QID mappings associated with this CVE.