CASCACascade Atlas

Evidence dossier

CVE-2024-50623

CVE-2024-50623

84.4–99.4Priority evidence range
As known Jul 19, 2026, 5:00 AM UTCgen-56ccdaf9

Normalized restatement

In Cleo Harmony before 5.8.0.21, VLTrader before 5.8.0.21, and LexiCom before 5.8.0.21, there is an unrestricted file upload and download that could lead to remote code execution.

State
PUBLISHED
Published
Oct 27, 2024
Updated
Oct 21, 2025
Evidence coverage
85%
CISA KEVCatalog member

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

FIRST EPSS98.53%

2026-07-18 · v2026.06.15 · percentile 99.9%

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

mitreoriginal assertion
container

In Cleo Harmony before 5.8.0.21, VLTrader before 5.8.0.21, and LexiCom before 5.8.0.21, there is an unrestricted file upload and download that could lead to remote code execution.

CISA KEVoriginal assertion
observed_exploitation

Cleo Multiple Products Unrestricted File Upload Vulnerability

FIRST EPSSoriginal assertion
model_probability

Probability 0.985290000000; percentile 0.999160000000

Applicability

Cited product scope

Trace impact →
cleoharmomy
[{"status": "affected", "version": "0", "lessThan": "5.8.0.21", "versionType": "custom"}]unknown
cleolexicom
[{"status": "affected", "version": "0", "lessThan": "5.8.0.21", "versionType": "custom"}]unknown
cleovltrader
[{"status": "affected", "version": "0", "lessThan": "5.8.0.21", "versionType": "custom"}]unknown
n/an/a
[{"status": "affected", "version": "n/a"}]unknown
Unknown vendorUnknown product
cpe:2.3:a:cleo:harmony:*:*:*:*:*:*:*:*; end excluding 5.8.0.21supported
Unknown vendorUnknown product
cpe:2.3:a:cleo:lexicom:*:*:*:*:*:*:*:*; end excluding 5.8.0.21supported
Unknown vendorUnknown product
cpe:2.3:a:cleo:vltrader:*:*:*:*:*:*:*:*; end excluding 5.8.0.21supported

Assessments

CVSS by origin

9.8
nvd@nist.govCVSS 3.1 · role PrimaryCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8
134c704f-9b21-4f2e-91b3-4a467353bcc0CVSS 3.1 · role SecondaryCVSS: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 unknownCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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.