CASCACascade Atlas

Evidence dossier

CVE-2019-7256

Linear eMerge E3-Series devices allow Command Injections.

Exploited in the wild (CISA KEV since Mar 25, 2024). NVD reports CVSS 3.1 9.8. EPSS estimates 97.1% exploit likelihood as of Aug 18, 2026.

87.7–90.7Priority evidence range
Evidence current through Aug 27, 2026, 6:09 PM UTC

As of Aug 27, 2026

Normalized restatement

Linear eMerge E3-Series devices allow Command Injections.

State
PUBLISHED
Published
Jul 2, 2019
Updated
Oct 21, 2025
Evidence coverage
91%

Evidence chronology

What was known when

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  1. Source dateSource date omittedFirst observed by CASCA
    CISA-ADP

    Record text: CISA ADP Vulnrichment

    Inspect raw assertion
    Field
    container
    Value
    CISA ADP Vulnrichment
    Original evidence ↗
  2. Source dateSource date omittedFirst observed by CASCA
    CVE Program

    Record text: CVE Program Container

    Inspect raw assertion
    Field
    container
    Value
    CVE Program Container
    Original evidence ↗
  3. Source dateSource date omittedFirst observed by CASCA
    mitre

    Record text: Linear eMerge E3-Series devices allow Command Injections.

    Inspect raw assertion
    Field
    container
    Value
    Linear eMerge E3-Series devices allow Command Injections.
    Original evidence ↗
  4. Source dateFirst observed by CASCA
    CISA KEV

    Exploitation cataloged: Nice Linear eMerge E3-Series OS Command Injection Vulnerability

    Inspect raw assertion
    Field
    observed_exploitation
    Value
    Nice Linear eMerge E3-Series OS Command Injection Vulnerability
    Original evidence ↗
  5. Source dateFirst observed by CASCA
    FIRST EPSS

    EPSS score: 97.14% probability · 99.89th percentile

    Inspect raw assertion
    Field
    model_probability
    Value
    Probability 0.971360000000; percentile 0.998890000000
    Original evidence ↗
ExploitationCatalog member

CISA KEV · catalog date Mar 25, 2024 · first observed Jul 19, 2026

Exploit likelihood97.14%

FIRST EPSS · score date Aug 18, 2026 · 99.9th percentile · first observed Aug 18, 2026

SeverityCVSS 9.8

NVD · CVSS 3.1 · first observed Jul 19, 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 statusEvidence supported

Eligible evidence is present for this bounded claim.

Revision
evidence-policy-v1.1.0
Cutoff
Aug 27, 2026
Resolution
None
Exploit likelihoodEvidence supported

Eligible evidence is present for this bounded claim.

Revision
evidence-policy-v1.1.0
Cutoff
Aug 27, 2026
Resolution
None
Severity assessmentEvidence supported

Eligible evidence is present for this bounded claim.

Revision
casca-direct-cvss-eligibility-v1
Cutoff
Aug 27, 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
Aug 27, 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 CASCAOriginal evidence ↗
CVE ProgramDerivative copy
Record text

CVE Program Container

Inspect raw assertion
Field
container
Value
CVE Program Container
Source dateSource date omittedFirst observed by CASCAOriginal evidence ↗
mitreOriginal assertion
Record text

Linear eMerge E3-Series devices allow Command Injections.

Inspect raw assertion
Field
container
Value
Linear eMerge E3-Series devices allow Command Injections.
Source dateSource date omittedFirst observed by CASCAOriginal evidence ↗
CISA KEVOriginal assertion
Exploitation cataloged

Nice Linear eMerge E3-Series OS Command Injection Vulnerability

Inspect raw assertion
Field
observed_exploitation
Value
Nice Linear eMerge E3-Series OS Command Injection Vulnerability
Source dateFirst observed by CASCAOriginal evidence ↗
FIRST EPSSOriginal assertion
EPSS score

97.14% probability · 99.89th percentile

Inspect raw assertion
Field
model_probability
Value
Probability 0.971360000000; percentile 0.998890000000
Source dateFirst observed by CASCAOriginal evidence ↗

Applicability

Cited product scope

Trace impact →
4Underlying assertions
4Canonical products
2Target assertions
2Constraint assertions

Grouped from 4 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

7 scope groups

mitre · source assertedn/an/aDirect source scope
Affected: n/a
Source-reported scope

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

Inspect raw assertion[{"status": "affected", "version": "n/a"}]
CISA-ADP · source assertednortekcontrollinear_emerge_elite_firmwareDirect source scope
Affected: 1.00-06
Source-reported scope

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

Inspect raw assertion[{"status": "affected", "version": "1.00-06"}]
CISA-ADP · source assertednortekcontrollinear_emerge_essential_firmwareDirect source scope
Affected: 1.00-06
Source-reported scope

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

Inspect raw assertion[{"status": "affected", "version": "1.00-06"}]
NVD CPE · HARDWAREnortekcontrollinear_emerge_eliteEnvironmental constraint · 1 assertions
Version not applicableCanonical identity product-3de94ba09fa8a05420f42e137db48df68c210a17c01176e512012379ae677a95Linked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:nortekcontrol:linear_emerge_elite:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    1 · node/1 · match 0
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    3465ca75-36c8-49e6-98bd-ffce518e5399
NVD CPE · OPERATING SYSTEMnortekcontrollinear_emerge_elite_firmwareVulnerable target · 1 assertions
Any version (unconstrained) (<= 1.00-06)Canonical identity product-0f04ef60638eb2f30231ce75f90ad10b4681f29c6d064bb4ad6fe7ea3af495b2Linked exact
Scope supported
Inspect raw assertion
  1. cpe:2.3:o:nortekcontrol:linear_emerge_elite_firmware:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    1 · node/0 · match 0
    Logic
    OR
    Version bounds
    through including 1.00-06
    Match ID
    cdd3f346-1c4c-4ea6-9696-7bcf3c169224
NVD CPE · HARDWAREnortekcontrollinear_emerge_essentialEnvironmental constraint · 1 assertions
Version not applicableCanonical identity product-e564a0f319645b7debc1a4ab643e4d857b369fdae94e150be3e59b6ed95685d7Linked exact
Scope constrained
Inspect raw assertion
  1. cpe:2.3:h:nortekcontrol:linear_emerge_essential:-:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    0 · node/1 · match 0
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    92db5201-9021-4302-b484-d846439bbc96
NVD CPE · OPERATING SYSTEMnortekcontrollinear_emerge_essential_firmwareVulnerable target · 1 assertions
Any version (unconstrained) (<= 1.00-06)Canonical identity product-891a8dd2703797f6960ff73d013d33d732ff565dac6e294cb058bd45c7646316Linked exact
Scope supported
Inspect raw assertion
  1. cpe:2.3:o:nortekcontrol:linear_emerge_essential_firmware:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    0 · node/0 · match 0
    Logic
    OR
    Version bounds
    through including 1.00-06
    Match ID
    6732033a-e740-473b-9929-5d3267e938a9

Affected-product evidence

Accepted scope and product mapping

2 canonical links · 1 source-reported links

Mapping establishedEvidence supported

vendor-af8d7316fe66b2085a7ff3b58b5a0295bb35bbbbdcaa06a9fd7b1f22c08918f7 · product-0f04ef60638eb2f30231ce75f90ad10b4681f29c6d064bb4ad6fe7ea3af495b2

Source class
Nvd cpe vulnerable target
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
a1975b43-c435-4890-8992-fe8a1d928cc0
Mapping establishedEvidence supported

vendor-af8d7316fe66b2085a7ff3b58b5a0295bb35bbbbdcaa06a9fd7b1f22c08918f7 · product-891a8dd2703797f6960ff73d013d33d732ff565dac6e294cb058bd45c7646316

Source class
Nvd cpe vulnerable target
Assertions
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
6241050c-04a0-4d75-82e0-a8b06576d43a
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
3
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
90e3b556-5682-42e8-97a8-5581623ee5aaa9b6d73d-38fd-49f9-9d49-e14e4f062f77e7d6d0fb-1394-4082-a965-b8dd2ff60b6d

Assessments

CVSS by origin

9.8
NVDCVSS 3.1 · role Primary · priority eligiblevalid_matchCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
10.0
NVDCVSS 2.0 · role Primary · priority eligiblevalid_matchAV:N/AC:L/Au:N/C:C/I:C/A:C
9.8
CVE Program sourceCVSS 3.1 · role Secondary · priority eligiblevalid_matchCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8
CISA-ADPCVSS 3.1 · role unknown · display onlyDirect record assessment retained outside normalized eligibilityCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Direct CVE/CNA normalized decisions

9.8Priority eligible

CISA-ADP

CVSS 3.1 · Secondary · Independent enrichment · rank 2

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Validation
Valid match
Recomputed
9.8
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.