CASCACascade Atlas

Evidence dossier

CVE-2019-7194

This external control of file name or path vulnerability allows remote attackers to access or modify system files.

Exploited in the wild (CISA KEV since Jun 8, 2022). NVD reports CVSS 3.1 9.8. EPSS estimates 83.1% exploit likelihood as of Aug 26, 2026.

85.4–86.9Priority evidence range
Evidence current through Aug 27, 2026, 6:09 PM UTC

As of Aug 27, 2026

Normalized restatement

This external control of file name or path vulnerability allows remote attackers to access or modify system files. To fix the vulnerability, QNAP recommend updating Photo Station to their latest versions.

State
PUBLISHED
Published
Dec 5, 2019
Updated
Oct 21, 2025
Evidence coverage
97%

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
    qnap

    Record text: This external control of file name or path vulnerability allows remote attackers to access or modify system files. To fix the vulnerability, QNAP recommend updating Photo Station to their latest versions.

    Inspect raw assertion
    Field
    container
    Value
    This external control of file name or path vulnerability allows remote attackers to access or modify system files. To fix the vulnerability, QNAP recommend updating Photo Station to their latest versions.
    Original evidence ↗
  4. Source dateFirst observed by CASCA
    CISA KEV

    Exploitation cataloged: QNAP Photo Station Path Traversal Vulnerability

    Inspect raw assertion
    Field
    observed_exploitation
    Value
    QNAP Photo Station Path Traversal Vulnerability
    Original evidence ↗
  5. Source dateFirst observed by CASCA
    FIRST EPSS

    EPSS score: 83.12% probability · 99.65th percentile

    Inspect raw assertion
    Field
    model_probability
    Value
    Probability 0.831240000000; percentile 0.996510000000
    Original evidence ↗
ExploitationCatalog member

CISA KEV · catalog date Jun 8, 2022 · first observed Jul 19, 2026

Exploit likelihood83.12%

FIRST EPSS · score date Aug 26, 2026 · 99.7th percentile · first observed Aug 26, 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 ↗
qnapOriginal assertion
Record text

This external control of file name or path vulnerability allows remote attackers to access or modify system files. To fix the vulnerability, QNAP recommend updating Photo Station to their latest versions.

Inspect raw assertion
Field
container
Value
This external control of file name or path vulnerability allows remote attackers to access or modify system files. To fix the vulnerability, QNAP recommend updating Photo Station to their latest versions.
Source dateSource date omittedFirst observed by CASCAOriginal evidence ↗
CISA KEVOriginal assertion
Exploitation cataloged

QNAP Photo Station Path Traversal Vulnerability

Inspect raw assertion
Field
observed_exploitation
Value
QNAP Photo Station Path Traversal Vulnerability
Source dateFirst observed by CASCAOriginal evidence ↗
FIRST EPSSOriginal assertion
EPSS score

83.12% probability · 99.65th percentile

Inspect raw assertion
Field
model_probability
Value
Probability 0.831240000000; percentile 0.996510000000
Source dateFirst observed by CASCAOriginal evidence ↗

Applicability

Cited product scope

Trace impact →
8Underlying assertions
2Canonical products
4Target assertions
4Constraint assertions

Grouped from 8 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

3 scope groups

qnap · source assertedn/aQNAP NAS devices running Photo StationDirect source scope
Affected: QTS 4.4.1: Photo Station before version 6.0.3, QTS 4.3.4 - QTS 4.4.0: Photo Station before version 5.7.10, QTS 4.3.0 - QTS 4.3.3: Photo Station before version 5.4.9, QTS 4.2.6: Photo Station before version 5.2.11
Source-reported scope

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

Inspect raw assertion[{"status": "affected", "version": "QTS 4.4.1: Photo Station before version 6.0.3, QTS 4.3.4 - QTS 4.4.0: Photo Station before version 5.7.10, QTS 4.3.0 - QTS 4.3.3: Photo Station before version 5.4.9, QTS 4.2.6: Photo Station before version 5.2.11"}]
NVD CPE · APPLICATIONqnapphoto_stationVulnerable target · 4 assertions
Any version (unconstrained) (< 5.2.11); Any version (unconstrained) (< 5.4.9); Any version (unconstrained) (< 5.7.10); Any version (unconstrained) (< 6.0.3)Canonical identity product-8f7682cc7b2c30c2243b59e702e1dcc5b887bd737c0569eedbc2a5fe40d3a6efLinked exact
Scope supported
Inspect raw assertions
  1. cpe:2.3:a:qnap:photo_station:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    1 · node/0 · match 0
    Logic
    OR
    Version bounds
    through excluding 5.7.10
    Match ID
    7e45f93c-9b1f-4c76-af80-620f6e954522
  2. cpe:2.3:a:qnap:photo_station:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    3 · node/0 · match 0
    Logic
    OR
    Version bounds
    through excluding 5.2.11
    Match ID
    b9872df1-5b03-4d85-925f-d0af6ce0f5af
  3. cpe:2.3:a:qnap:photo_station:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    0 · node/0 · match 0
    Logic
    OR
    Version bounds
    through excluding 6.0.3
    Match ID
    4ebb24b5-9df0-4758-8015-8d45cd88e48b
  4. cpe:2.3:a:qnap:photo_station:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Vulnerable target
    Configuration
    2 · node/0 · match 0
    Logic
    OR
    Version bounds
    through excluding 5.4.9
    Match ID
    0c435dcb-a00f-49da-b06b-06d29f1aac5a
NVD CPE · OPERATING SYSTEMqnapqtsEnvironmental constraint · 4 assertions
Any version (unconstrained) (>= 4.3.0, <= 4.3.3); Any version (unconstrained) (>= 4.3.4, <= 4.4.0); Version 4.2.6; Version 4.4.1Canonical identity product-81578b5d517b13c57b34c6184dee501c7b2e69f5d366148b8e0d95265e548fc9Linked exact
Scope constrained
Inspect raw assertions
  1. cpe:2.3:o:qnap:qts:4.2.6:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    3 · node/1 · match 0
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    1d9e6f8f-a433-45a7-8839-5d478fe179a4
  2. cpe:2.3:o:qnap:qts:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    2 · node/1 · match 0
    Logic
    OR
    Version bounds
    from including 4.3.0; through including 4.3.3
    Match ID
    99543d0a-1e01-4664-bdb6-e3263ba34825
  3. cpe:2.3:o:qnap:qts:4.4.1:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    0 · node/1 · match 0
    Logic
    OR
    Version bounds
    No explicit bounds
    Match ID
    47b6d38a-d7c9-4d55-921c-488d56c43f25
  4. cpe:2.3:o:qnap:qts:*:*:*:*:*:*:*:*
    Official link
    Linked exact
    Role
    Environmental constraint
    Configuration
    1 · node/1 · match 0
    Logic
    OR
    Version bounds
    from including 4.3.4; through including 4.4.0
    Match ID
    ad20d15e-c474-48fc-9a84-12cd6af01f1f

Affected-product evidence

Accepted scope and product mapping

1 canonical links · 1 source-reported links

Mapping establishedEvidence supported

vendor-37a503905b0a0167877af753ac60ba6a9fd40363b081ec9e83c43aeaec72163a · product-8f7682cc7b2c30c2243b59e702e1dcc5b887bd737c0569eedbc2a5fe40d3a6ef

Source class
Nvd cpe vulnerable target
Assertions
4
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
4fe97756-9f9f-4538-8af9-8bdbdb30370fd1c7bf7e-edc1-4408-a583-aeb4cf3b976ed2b17788-7935-4c0e-878e-dae8df75ba85ecc2159d-1a72-4a00-ad03-bb0965bfad68
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
1
Mapping revision
cpe23-exact-mapping-v1
Observed cutoff
Aug 27, 2026
Retained assertion IDs
071875c6-3bea-48a1-b4d6-d679dc964692

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
7.5
NVDCVSS 2.0 · role Primary · priority eligiblevalid_matchAV:N/AC:L/Au:N/C:P/I:P/A:P
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.