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CVE-2019-1069

Task Scheduler Elevation of Privilege Vulnerability

HIGH
7.8
CVSS Score
Published: June 12, 2019 at 01:49 PM UTC
Updated: August 12, 2026 at 05:28 AM UTC
12 products affected across 1 vendorWindows Server 2016Windows Server 2019Windows 10 1809

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Severity
HIGH7.8
Exploitation
CISA KEV
Exploit prediction
EPSS 6%
SSVC
Active

Actively Exploited

CISA Known Exploited Vulnerabilities (KEV) Catalog

EPSS Score6.1%

EPSS (Exploit Prediction Scoring System) estimates a 6.1% chance this CVE is exploited in the wild within the next 30 days — higher than 93% of all CVEs. It complements CVSS: a high EPSS on a mid-severity CVE can still be urgent.

A privilege escalation vulnerability exists in the way the Task Scheduler Service validates certain file operations.

Required Action
Apply updates per vendor instructions.
Ransomware Use
Known
Added to KEV
Mar 15, 2022
Remediation Due
Apr 5, 2022
1666 days overdue
Notes
https://nvd.nist.gov/vuln/detail/CVE-2019-1069

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Windows 10· Microsoft
95%
10.0.0 ≤ v < publication1607170317091803
Affected range stops below publication, so it looks safe — our inference, not a vendor statement
Windows 10 1507· Microsoft
95%
10.0.10240.0 ≤ v < publication10.0.10240.0
Affected range stops below publication, so it looks safe — our inference, not a vendor statement
Windows 10 1607· Microsoft
95%
10.0.14393.0 ≤ v < publication10.0.14393.0
Affected range stops below publication, so it looks safe — our inference, not a vendor statement
Windows 10 1809· Microsoft
95%
10.0.0 ≤ v < publication10.0.17763.0 ≤ v < publication10.0.010.0.17763.0
Affected range stops below publication, so it looks safe — our inference, not a vendor statement
Windows Server 1803· Microsoft
95%
10.0.0 ≤ v < publication10.0.0
Affected range stops below publication, so it looks safe — our inference, not a vendor statement
Windows Server 1903· Microsoft
95%
10.0.0 ≤ v < publication10.0.0
Affected range stops below publication, so it looks safe — our inference, not a vendor statement
Windows Server 2016· Microsoft
95%
10.0.14393.0 ≤ v < publication10.0.14393.018031903
Affected range stops below publication, so it looks safe — our inference, not a vendor statement
Windows Server 2019· Microsoft
95%
10.0.17763.0 ≤ v < publication10.0.17763.0
Affected range stops below publication, so it looks safe — our inference, not a vendor statement
Windows 10 1703· Microsoft
60%
10.0.0 ≤ v < publication10.0.0
Affected range stops below publication, so it looks safe — our inference, not a vendor statement
Windows 10 1709· Microsoft
60%
10.0.0 ≤ v < publication10.0.0
Affected range stops below publication, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (5)

Vendor AdvisoryPatch
Source: [email protected]
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2019-1069
ExploitThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
https://blog.0patch.com/2019/06/another-task-scheduler-0day-another.html
PatchVendor Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1069
Third Party AdvisoryUS Government Resource
Source: af854a3a-2127-422b-91ae-364da2661108
https://www.kb.cert.org/vuls/id/119704
US Government Resource
Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2019-1069

SSVC — Action Prioritization

SSVCActiveNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGHmicrosoft
Vector?

Quick Info

StatusANALYZED
CWE
CWE-59

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