CVE-2019-1069

HIGH KEV RANSOMWARE

Windows 10 and Windows Server - Elevation of Privilege via Task Scheduler File Operation Validation

Title source: llm
STIX 2.1

Exploitation Summary

CVE-2019-1069 is actively exploited and listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added March 15, 2022, with confirmed use in ransomware campaigns. EIP tracks 2 public exploits from researchers including S3cur3Th1sSh1t, k44sh.

AI-analyzed exploit summary This repository contains a functional exploit for CVE-2019-1069, which targets a vulnerability in the Windows Task Scheduler. The exploit involves loading a malicious DLL to achieve privilege escalation.

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.

Exploits (2)

nomisec WORKING POC 37 stars
by S3cur3Th1sSh1t · poc
https://github.com/S3cur3Th1sSh1t/SharpPolarBear

This repository contains a functional exploit for CVE-2019-1069, which targets a vulnerability in the Windows Task Scheduler. The exploit involves loading a malicious DLL to achieve privilege escalation.

Classification
Working Poc 90%
Attack Type
Lpe
Complexity
Moderate
Reliability
Reliable
Target: Windows Task Scheduler (affected versions of Windows)
No auth needed
Prerequisites: Local access to the target system · Ability to execute code on the target system
devstral-2 · analyzed Feb 18, 2026 Full analysis →
gitlab WORKING POC
by k44sh · poc
https://gitlab.com/k44sh/cve-2019-1069

This repository contains a functional exploit for CVE-2019-1069, a local privilege escalation vulnerability in Windows Task Scheduler. The exploit leverages a flaw in DACL permission handling for .job files to elevate privileges by creating a hardlink to a target file.

Classification
Working Poc 95%
Attack Type
Lpe
Complexity
Moderate
Reliability
Reliable
Target: Windows Task Scheduler (Windows 10, Windows Server 2016/2019)
Auth required
Prerequisites: low-privileged user access · valid user credentials · ability to execute the exploit binary
devstral-2 · analyzed Feb 23, 2026 Full analysis →

Scores

CVSS v3 7.8
EPSS 0.0617
EPSS Percentile 92.6%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation active
Automatable no
Technical Impact total

Details

CISA KEV 2022-03-15
VulnCheck KEV 2021-04-16
InTheWild.io 2021-04-20
ENISA EUVD EUVD-2019-9651
Ransomware Use Confirmed
CWE
CWE-59
Status published
Products (11)
microsoft/windows_10_1507
microsoft/windows_10_1607
microsoft/windows_10_1703
microsoft/windows_10_1709
microsoft/windows_10_1803
microsoft/windows_10_1809
microsoft/windows_10_1903
microsoft/windows_server_1803
microsoft/windows_server_1903
microsoft/windows_server_2016
... and 1 more
Published Jun 12, 2019
KEV Added Mar 15, 2022
Tracked Since Feb 18, 2026