CASCACascade Atlas

Evidence dossier

CVE-2022-27593

DeadBolt Ransomware

81.5–98.8Priority evidence range
As known Jul 19, 2026, 5:00 AM UTCgen-56ccdaf9

Normalized restatement

An externally controlled reference to a resource vulnerability has been reported to affect QNAP NAS running Photo Station. If exploited, This could allow an attacker to modify system files. We have already fixed the vulnerability in the following versions: QTS 5.0.1: Photo Station 6.1.2 and later QTS 5.0.0/4.5.x: Photo Station 6.0.22 and later QTS 4.3.6: Photo Station 5.7.18 and later QTS 4.3.3: Photo Station 5.4.15 and later QTS 4.2.6: Photo Station 5.2.14 and later

State
PUBLISHED
Published
Sep 8, 2022
Updated
Oct 21, 2025
Evidence coverage
85%
CISA KEVCatalog member

Apply updates per vendor instructions.

FIRST EPSS87.91%

2026-07-18 · v2026.06.15 · percentile 99.7%

Source stateNo scored conflict

Distinct CVSS assessments remain side by side; none are averaged.

Source comparison

Who said what

CISA-ADPindependent enrichment
container

CISA ADP Vulnrichment

CVEderivative copy
container

CVE Program Container

qnaporiginal assertion
container

DeadBolt Ransomware

CISA KEVoriginal assertion
observed_exploitation

QNAP Photo Station Externally Controlled Reference Vulnerability

FIRST EPSSoriginal assertion
model_probability

Probability 0.879080000000; percentile 0.997470000000

Applicability

Cited product scope

Trace impact →
QNAP Systems Inc.Photo Station
[{"status": "affected", "version": "unspecified", "lessThan": "6.1.2", "versionType": "custom"}]unknown
QNAP Systems Inc.Photo Station
[{"status": "affected", "version": "unspecified", "lessThan": "6.0.22", "versionType": "custom"}]unknown
QNAP Systems Inc.Photo Station
[{"status": "affected", "version": "unspecified", "lessThan": "6.0.22", "versionType": "custom"}]unknown
QNAP Systems Inc.Photo Station
[{"status": "affected", "version": "unspecified", "lessThan": "5.7.18", "versionType": "custom"}]unknown
QNAP Systems Inc.Photo Station
[{"status": "affected", "version": "unspecified", "lessThan": "5.4.15", "versionType": "custom"}]unknown
QNAP Systems Inc.Photo Station
[{"status": "affected", "version": "unspecified", "lessThan": "5.2.14", "versionType": "custom"}]unknown
Unknown vendorUnknown product
cpe:2.3:a:qnap:photo_station:*:*:*:*:*:*:*:*; end excluding 5.2.14supported
Unknown vendorUnknown product
cpe:2.3:a:qnap:photo_station:*:*:*:*:*:*:*:*; end excluding 5.4.15supported
Unknown vendorUnknown product
cpe:2.3:a:qnap:photo_station:*:*:*:*:*:*:*:*; end excluding 5.7.18supported
Unknown vendorUnknown product
cpe:2.3:a:qnap:photo_station:*:*:*:*:*:*:*:*; end excluding 6.0.22supported
Unknown vendorUnknown product
cpe:2.3:a:qnap:photo_station:*:*:*:*:*:*:*:*; end excluding 6.1.2supported
Unknown vendorUnknown product
cpe:2.3:o:qnap:qts:*:*:*:*:*:*:*:*; start including 4.5.1; end including 4.5.4.2012constrained
Unknown vendorUnknown product
cpe:2.3:o:qnap:qts:4.2.6:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:o:qnap:qts:4.3.3:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:o:qnap:qts:4.3.6:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:o:qnap:qts:5.0.0:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:o:qnap:qts:5.0.1:*:*:*:*:*:*:*constrained

Assessments

CVSS by origin

9.1
nvd@nist.govCVSS 3.1 · role PrimaryCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
10.0
security@qnapsecurity.com.twCVSS 3.1 · role SecondaryCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:H
10.0
qnapCVSS 3.1 · role unknownCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:H

Limitations and unknowns

  • 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; unresolved scope remains unknown.
  • NVD-carried upstream facts remain derivative and are not independent corroboration.
  • 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.
  • Factor D is unknown in Public Core because no accepted canonical mapping-obligation ledger is present.
  • Core replay supports the active and immediately prior generation; retrospective valid-at replay is deferred.