Evidence dossier

CVE-2019-1069

Task Scheduler Elevation of Privilege Vulnerability

Exploited in the wild (CISA KEV since Mar 15, 2022). NVD reports CVSS 3.1 7.8. EPSS estimates 6.1% exploit likelihood as of Oct 22, 2026.

64.4–77.2Priority evidence range

Evidence through Oct 22, 2026, 6:07 PM UTC

As of Oct 22, 2026

Normalized restatement

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.

State: PUBLISHED
Published: Jun 12, 2019
Updated: Aug 12, 2026
Evidence coverage: 85%

Evidence chronology

What was known when

Download this view's receipt →

Source dateSource date omittedFirst observed by CASCAAug 12, 2026
CISA-ADP
Record text: CISA ADP Vulnrichment
Inspect raw assertion
Field
container
Value
CISA ADP Vulnrichment
Original evidence ↗
Source dateSource date omittedFirst observed by CASCAAug 12, 2026
CVE Program
Record text: CVE Program Container
Inspect raw assertion
Field
container
Value
CVE Program Container
Original evidence ↗
Source dateSource date omittedFirst observed by CASCAAug 12, 2026
microsoft
Record text: Task Scheduler Elevation of Privilege Vulnerability
Inspect raw assertion
Field
container
Value
Task Scheduler Elevation of Privilege Vulnerability
Original evidence ↗
Source dateSep 1, 2026First observed by CASCASep 1, 2026
CISA KEV
Exploitation cataloged: Microsoft Task Scheduler Privilege Escalation Vulnerability
Inspect raw assertion
Field
observed_exploitation
Value
Microsoft Task Scheduler Privilege Escalation Vulnerability
Original evidence ↗
Source dateOct 22, 2026First observed by CASCAOct 22, 2026
FIRST EPSS
EPSS score: 6.12% probability · 93.41th percentile
Inspect raw assertion
Field
model_probability
Value
Probability 0.061170000000; percentile 0.934120000000
Original evidence ↗

ExploitationCatalog member

CISA KEV · catalog date Mar 15, 2022 · first observed Sep 1, 2026

Exploit likelihood6.12%

FIRST EPSS · score date Oct 22, 2026 · 93.4th percentile · first observed Oct 22, 2026

SeverityCVSS 7.8

NVD · CVSS 3.1 · first observed Aug 12, 2026 · same-version scores align in this snapshot

Evidence detail

Source limits and decisions

Why each evidence state has this value

casca-unknown-reasons-v1

Exploitation statusLast verified source snapshot retained

The last verified source boundary remains in force for this claim.

Revision: evidence-policy-v1.1.0
Cutoff: Oct 22, 2026
Resolution: Review source contract

Exploit likelihoodEvidence supported

Eligible evidence is present for this bounded claim.

Revision: evidence-policy-v1.1.0
Cutoff: Oct 22, 2026
Resolution: None

Severity assessmentEvidence supported

Eligible evidence is present for this bounded claim.

Revision: casca-direct-cvss-eligibility-v1
Cutoff: Oct 22, 2026
Resolution: None

Affected productsSource-reported scope

The cited source assertion is retained while canonical product linkage remains open.

Revision: casca-factor-d-obligations-v1
Cutoff: Oct 22, 2026
Resolution: Resolve identity

Source comparison

Who said what

CISA-ADPIndependent enrichment

Record text

CISA ADP Vulnrichment

Inspect raw assertion

Field: container
Value: CISA ADP Vulnrichment

Source dateSource date omittedFirst observed by CASCAAug 12, 2026Original evidence ↗

CVE ProgramDerivative copy

Record text

CVE Program Container

Inspect raw assertion

Field: container
Value: CVE Program Container

Source dateSource date omittedFirst observed by CASCAAug 12, 2026Original evidence ↗

microsoftOriginal assertion

Record text

Task Scheduler Elevation of Privilege Vulnerability

Inspect raw assertion

Field: container
Value: Task Scheduler Elevation of Privilege Vulnerability

Source dateSource date omittedFirst observed by CASCAAug 12, 2026Original evidence ↗

CISA KEVOriginal assertion

Exploitation cataloged

Microsoft Task Scheduler Privilege Escalation Vulnerability

Inspect raw assertion

Field: observed_exploitation
Value: Microsoft Task Scheduler Privilege Escalation Vulnerability

Source dateSep 1, 2026First observed by CASCASep 1, 2026Original evidence ↗

FIRST EPSSOriginal assertion

EPSS score

6.12% probability · 93.41th percentile

Inspect raw assertion

Field: model_probability
Value: Probability 0.061170000000; percentile 0.934120000000

Source dateOct 22, 2026First observed by CASCAOct 22, 2026Original evidence ↗

Applicability

Cited product scope

Trace impact →

11Underlying assertions

11Canonical products

11Target assertions

0Constraint assertions

Grouped from 1 configuration nodes in this exact snapshot. Visual grouping is navigational; asset exposure and root cause require cited evidence.

Identity source boundaries

Cpe dictionary1,775,266 records · observed through 2026-07-21T06:45:29.809Z27d65b0f-b718-4b4f-bb79-c47c68d09dfa
Cpe match643,502 records · observed through 2026-07-21T08:13:17.697Z955dae73-7302-438b-aee1-058d7cc5d48e

Search scopeRoleOfficial link state

35 scope groups

CISA-ADP · source assertedmicrosoftwindows_10Direct source scope

Affected: 1607Affected: 1703Affected: 1709Affected: 1803

Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion

[{"status": "affected", "version": "1607"}, {"status": "affected", "version": "1703"}, {"status": "affected", "version": "1709"}, {"status": "affected", "version": "1803"}]

CISA-ADP · source assertedmicrosoftwindows_10Direct source scope

Affected: 1607Affected: 1703Affected: 1709Affected: 1803

Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion

[{"status": "affected", "version": "1607"}, {"status": "affected", "version": "1703"}, {"status": "affected", "version": "1709"}, {"status": "affected", "version": "1803"}]

CISA-ADP · source assertedmicrosoftwindows_10Direct source scope

Affected: 1607Affected: 1703Affected: 1709Affected: 1803

Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion

[{"status": "affected", "version": "1607"}, {"status": "affected", "version": "1703"}, {"status": "affected", "version": "1709"}, {"status": "affected", "version": "1803"}]

CISA-ADP · source assertedmicrosoftwindows_10Direct source scope

Affected: 1607Affected: 1703Affected: 1709Affected: 1803

Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion

[{"status": "affected", "version": "1607"}, {"status": "affected", "version": "1703"}, {"status": "affected", "version": "1709"}, {"status": "affected", "version": "1803"}]

CISA-ADP · source assertedmicrosoftwindows_server_2016Direct source scope

Affected: 1803Affected: 1903

Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion

[{"status": "affected", "version": "1803"}, {"status": "affected", "version": "1903"}]

CISA-ADP · source assertedmicrosoftwindows_server_2016Direct source scope

Affected: 1803Affected: 1903

Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion

[{"status": "affected", "version": "1803"}, {"status": "affected", "version": "1903"}]

CISA-ADP · source assertedmicrosoftwindows_server_2019Direct source scope

Affected: 0 to before * (custom comparison)

Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion

[{"status": "affected", "version": "0", "lessThan": "*", "versionType": "custom"}]

microsoft · source assertedMicrosoftWindows 10 Version 1507Direct source scope

Affected: 10.0.10240.0 to before publication (custom comparison)

Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion

[{"status": "affected", "version": "10.0.10240.0", "lessThan": "publication", "versionType": "custom"}]

microsoft · source assertedMicrosoftWindows 10 Version 1607Direct source scope

Affected: 10.0.14393.0 to before publication (custom comparison)

Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion

[{"status": "affected", "version": "10.0.14393.0", "lessThan": "publication", "versionType": "custom"}]

microsoft · source assertedMicrosoftWindows 10 Version 1703Direct source scope

Affected: 10.0.0 to before publication (custom comparison)

Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion

[{"status": "affected", "version": "10.0.0", "lessThan": "publication", "versionType": "custom"}]

microsoft · source assertedMicrosoftWindows 10 Version 1709Direct source scope

Affected: 10.0.0 to before publication (custom comparison)

Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion

[{"status": "affected", "version": "10.0.0", "lessThan": "publication", "versionType": "custom"}]

microsoft · source assertedMicrosoftWindows 10 Version 1709 for 32-bit SystemsDirect source scope

Affected: 10.0.0 to before publication (custom comparison)

Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion

[{"status": "affected", "version": "10.0.0", "lessThan": "publication", "versionType": "custom"}]

microsoft · source assertedMicrosoftWindows 10 Version 1803Direct source scope

Affected: 10.0.0 to before publication (custom comparison)

Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion

[{"status": "affected", "version": "10.0.0", "lessThan": "publication", "versionType": "custom"}]

microsoft · source assertedMicrosoftWindows 10 Version 1809Direct source scope

Affected: 10.0.0 to before publication (custom comparison)

Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion

[{"status": "affected", "version": "10.0.0", "lessThan": "publication", "versionType": "custom"}]

microsoft · source assertedMicrosoftWindows 10 Version 1809Direct source scope

Affected: 10.0.17763.0 to before publication (custom comparison)

Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion

[{"status": "affected", "version": "10.0.17763.0", "lessThan": "publication", "versionType": "custom"}]

microsoft · source assertedMicrosoftWindows 10 Version 1903 for 32-bit SystemsDirect source scope

Affected: 10.0.0 to before publication (custom comparison)

Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion

[{"status": "affected", "version": "10.0.0", "lessThan": "publication", "versionType": "custom"}]

microsoft · source assertedMicrosoftWindows 10 Version 1903 for ARM64-based SystemsDirect source scope

Affected: 10.0.0 to before publication (custom comparison)

Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion

[{"status": "affected", "version": "10.0.0", "lessThan": "publication", "versionType": "custom"}]

microsoft · source assertedMicrosoftWindows 10 Version 1903 for x64-based SystemsDirect source scope

Affected: 10.0.0 to before publication (custom comparison)

Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion

[{"status": "affected", "version": "10.0.0", "lessThan": "publication", "versionType": "custom"}]

microsoft · source assertedMicrosoftWindows Server 2016Direct source scope

Affected: 10.0.14393.0 to before publication (custom comparison)

Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion

[{"status": "affected", "version": "10.0.14393.0", "lessThan": "publication", "versionType": "custom"}]

microsoft · source assertedMicrosoftWindows Server 2016 (Server Core installation)Direct source scope

Affected: 10.0.14393.0 to before publication (custom comparison)

Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion

[{"status": "affected", "version": "10.0.14393.0", "lessThan": "publication", "versionType": "custom"}]

microsoft · source assertedMicrosoftWindows Server 2019Direct source scope

Affected: 10.0.17763.0 to before publication (custom comparison)

Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion

[{"status": "affected", "version": "10.0.17763.0", "lessThan": "publication", "versionType": "custom"}]

microsoft · source assertedMicrosoftWindows Server 2019 (Server Core installation)Direct source scope

Affected: 10.0.17763.0 to before publication (custom comparison)

Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion

[{"status": "affected", "version": "10.0.17763.0", "lessThan": "publication", "versionType": "custom"}]

microsoft · source assertedMicrosoftWindows Server, version 1803 (Server Core Installation)Direct source scope

Affected: 10.0.0 to before publication (custom comparison)

Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion

[{"status": "affected", "version": "10.0.0", "lessThan": "publication", "versionType": "custom"}]

microsoft · source assertedMicrosoftWindows Server, version 1903 (Server Core installation)Direct source scope

Affected: 10.0.0 to before publication (custom comparison)

Source-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Inspect raw assertion

[{"status": "affected", "version": "10.0.0", "lessThan": "publication", "versionType": "custom"}]

NVD CPE · OPERATING SYSTEMmicrosoftwindows_10_1507Vulnerable target · 1 assertions

Version not applicableCanonical identity product-9851bd571b8ab08bca589cd73710badfef557d036f0fb7707f694f1c9f597cb4Linked exact

Scope supported

Inspect raw assertion

cpe:2.3:o:microsoft:windows_10_1507:-:*:*:*:*:*:*:*
Official link
Linked exact
Role
Vulnerable target
Configuration
0 · node/0 · match 0
Logic
OR
Version bounds
No explicit bounds
Match ID
542daeec-73cc-46c6-a630-bf474a3446ac

Affected-product evidence

Accepted scope and product mapping

0 canonical links · 2 source-reported links

Source-reported scopeSource-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Vendor specified only by source · Product specified only by source

Source class: Direct cve affected
Assertions: 24
Mapping revision: cpe23-exact-mapping-v1
Observed cutoff: Oct 22, 2026

Retained assertion IDs

01195e65-da2e-4427-b156-b89f1f15e188112fc5a3-165d-470c-b590-c132bd76a5631283609a-1e4b-43c2-83dc-978fe1e62ee814a8c4b6-1283-4a1b-801c-72e7121c8c981d792968-dd1a-4619-a811-60e184f037a91fb10065-643a-4df2-a0da-2ee4f06a8a8528069dee-8ca6-4faf-aea1-b7c1b2ef54302a10b7ad-d8fe-4f55-b45e-1493cc38c0ab4fdcdcdb-7154-4282-8cdf-01ce0c6744425194b9da-6bc7-4316-8671-80a5de617f2b70d2aeea-f589-47c6-84f7-f830d72c820f74f259a7-983d-46ad-adfc-fa11530fea98752bcc73-8de3-4512-a257-2af94bf3fe777fa3cfa6-0e4e-413b-8c3e-c8edaec809bc989860be-423e-4e74-8ee6-e6ab08fd83acbf2427a3-5dfe-4a2b-9ff4-8ecdb3152b79d0505aae-4db7-493e-8c14-399407eaaa6fd6579d61-1725-4708-98d9-4fc1b74d58d1d83d5f30-4628-402a-84b6-88de2c95282fe29d972f-e36a-4db9-855b-d6c8b4103da2e8b41d6b-6695-4ae4-baad-c261d1c55f3bea1b7159-1787-4515-b9f7-e6ca477d7a9ff677a05e-039c-4fe5-a778-afa27d1a95d4f76650ba-decc-434d-ab84-0d5fe801acd2

Source-reported scopeSource-reported scope

Canonical linkage remains open; the cited source assertion is retained below.

Vendor specified only by source · Product specified only by source

Source class: Nvd cpe vulnerable target
Assertions: 11
Mapping revision: cpe23-exact-mapping-v1
Observed cutoff: Oct 22, 2026

Retained assertion IDs

061e76dc-c45a-4b0a-882d-d974746810a138e23541-5218-4036-a401-b74b542da28559eda653-c43e-4c52-b056-8e5a2f79dc9c69b3b557-4a11-4846-86f6-6954b9858f0c79571c9f-c20a-4b06-9f53-ea468344ea927cc8fc98-fa5b-4965-af62-8c953a4c29629e7b1091-a772-4671-9261-ed70505ad9c4a903e664-fa8f-4af0-80d5-09101a8cb632dad23045-4448-4fa5-8bfb-feec86854cb6e2d7de82-b490-49d3-8a2a-dc90fdf86388f2e78dbd-ed9d-461e-aee5-5ef4bb526295

Assessments

CVSS by origin

7.8

NVDCVSS 3.1 · role Primary · priority eligiblevalid_matchCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7.2

NVDCVSS 2.0 · role Primary · priority eligiblevalid_matchAV:L/AC:L/Au:N/C:C/I:C/A:C

7.8

secure@microsoft.comCVSS 3.1 · role Secondary · priority eligiblevalid_matchCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

7.8

microsoftCVSS 3.1 · role unknown · display onlyDirect record assessment retained outside normalized eligibilityCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C

Direct CVE/CNA normalized decisions

7.8Priority eligible

microsoft

CVSS 3.1 · Primary · Original assertion · rank 1

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

Validation: Valid match
Recomputed: 7.8
Decision reason: Evidence supported
Policy: casca-direct-cvss-eligibility-v1

Assessments are retained side by side under closed precedence. Cascade never averages CVSS.

Evidence boundaries

KEV membership is authoritative for the catalog, not proof of exposure in any environment.
EPSS is a dated model probability and not an individual-environment prediction.
Affected or fixed status applies only to the exact cited product and version scope; remaining scope stays source-scoped.
NVD-carried upstream facts remain derivative; independent corroboration requires a separately authored source.
Only NVD metrics validated under the generation-bound calculator are Public Priority eligible; direct CVE record metrics remain display-only.
NVD CVSS source eligibility is closed: NVD-authored, exact record-source, or registered same-CVE container origin; unmapped sources remain display-only.
Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.
OSV aggregation and OSV-converted NVD material are not independent corroboration.
Red Hat facts are vendor assertions for the exact supplied products.
Nonmembership and not-yet-observed states are not proof of safety.