CVE-2019-1069 kev+ ransomware in the critical feed json
Task Scheduler Elevation of Privilege Vulnerability
published 2019-06-12 7 y ago modified 2026-08-12 2 mo ago also EUVD-2019-9651
- cvss
- 7.8
- version 3.1, CNA
- cisa kev
- Exploited
- added 2022-03-15, used in ransomware
- epss
- 6.2%
- EPSS 6.2% chance of exploitation in 30 days, percentile 93%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
cisa required action Apply updates per vendor instructions.
Timeline
- Published
- CISA SSVC: exploitation active
- Added to CISA KEV
- CISA patch deadline
Known exploited
- Added
- 4 y ago
- Patch by
- 2022-04-05 (4 y ago)
- Ransomware
- Known to be used in ransomware campaigns
- Required action
- Apply updates per vendor instructions.
- Vendor, product
- Microsoft, Task Scheduler
- CISA name
- Microsoft Task Scheduler Privilege Escalation Vulnerability
Ransomware
Groups reported to have exploited it in intrusions.
- Mallox ransomware gang
reported by trendmicro.com
Ransomware Vulnerability Matrix by BushidoUK (github.com/BushidoUK/Ransomware-Vulnerability-Matrix), reformatted per CVE. CC BY 4.0
CISA SSVC
- Exploitation
- Active, exploited in the wild
- Automatable
- no
- Technical impact
- total
- Assessed
- 4 y ago
Exploit prediction
6.17% chance of exploitation in the next 30 days, higher than 93% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- blog.0patch.com https://blog.0patch.com/2019/06/another-task-scheduler-0day-another.html referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.8 | 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 |
| CNA | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.2 | AV:L/AC:L/Au:N/C:C/I:C/A:C |
Affected products
- Microsoft Windows 10 Version 1703
- Microsoft Windows 10 Version 1803
- Microsoft Windows Server, version 1803 (Server Core Installation)
- Microsoft Windows 10 Version 1809
- Microsoft Windows Server 2019
- Microsoft Windows Server 2019 (Server Core installation)
- Microsoft Windows 10 Version 1709 for 32-bit Systems
- Microsoft Windows 10 Version 1709
- Microsoft Windows 10 Version 1903 for 32-bit Systems
- Microsoft Windows 10 Version 1903 for x64-based Systems
- Microsoft Windows 10 Version 1903 for ARM64-based Systems
- Microsoft Windows Server, version 1903 (Server Core installation)
- Microsoft Windows 10 Version 1507
- Microsoft Windows 10 Version 1607
- Microsoft Windows Server 2016
- Microsoft Windows Server 2016 (Server Core installation)
- microsoft windows_10
- microsoft windows_server_2016
- microsoft windows_server_2019
Classification
- Weakness
-
- CWE-59 Improper Link Resolution Before File Access
References
-
msrc.microsoft.com
/update-guide/vulnerability/CVE-2019-1069
vendor-advisory, patch
-
portal.msrc.microsoft.com
/en-US/security-guidance/advisory/CVE-2019-1069
patch, vendor-advisory
-
blog.0patch.com
/2019/06/another-task-scheduler-0day-another.html
exploit, third-party-advisory
-
kb.cert.org
/vuls/id/119704
third-party-advisory, us-government-resource
-
cisa.gov
/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-1069
government-resource, us-government-resource
Sources
- CVE List CVE-2019-1069
- NVD CVE-2019-1069
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