CASCACascade Atlas

Evidence dossier

CVE-2024-4978

Malicious Code in Justice AV Solutions (JAVS) Viewer

71.4–87.1Priority evidence range
As known Jul 19, 2026, 5:00 AM UTCgen-56ccdaf9

Normalized restatement

Justice AV Solutions Viewer Setup 8.3.7.250-1 contains a malicious binary when executed and is signed with an unexpected authenticode signature. A remote, privileged threat actor may exploit this vulnerability to execute of unauthorized PowerShell commands.

State
PUBLISHED
Published
May 23, 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 EPSS26.94%

2026-07-18 · v2026.06.15 · percentile 97.8%

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

cisa-cgoriginal assertion
container

Malicious Code in Justice AV Solutions (JAVS) Viewer

CVEderivative copy
container

CVE Program Container

CISA KEVoriginal assertion
observed_exploitation

Justice AV Solutions (JAVS) Viewer Installer Embedded Malicious Code Vulnerability

FIRST EPSSoriginal assertion
model_probability

Probability 0.269370000000; percentile 0.978180000000

Applicability

Cited product scope

Trace impact →
javsviewer
[{"status": "affected", "version": "8.3.7.250"}]unknown
Justice AV SolutionsViewer
[{"status": "affected", "version": "8.3.7.250"}]unknown
Unknown vendorUnknown product
cpe:2.3:a:javs:javs_viewer:8.3.7.250:*:*:*:*:*:*:*supported

Assessments

CVSS by origin

8.4
nvd@nist.govCVSS 3.1 · role PrimaryCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H
8.7
9119a7d8-5eab-497f-8521-727c672e3725CVSS 4.0 · role SecondaryCVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
8.4
9119a7d8-5eab-497f-8521-727c672e3725CVSS 3.1 · role SecondaryCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:H
8.7
cisa-cgCVSS 4.0 · role unknownCVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
8.4
cisa-cgCVSS 3.1 · role unknownCVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/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.