CASCACascade Atlas

Evidence dossier

CVE-2018-4063

CVE-2018-4063

72.6–88.1Priority evidence range
As known Jul 19, 2026, 5:00 AM UTCgen-56ccdaf9

Normalized restatement

An exploitable remote code execution vulnerability exists in the upload.cgi functionality of Sierra Wireless AirLink ES450 FW 4.9.3. A specially crafted HTTP request can upload a file, resulting in executable code being uploaded, and routable, to the webserver. An attacker can make an authenticated HTTP request to trigger this vulnerability.

State
PUBLISHED
Published
May 6, 2019
Updated
May 22, 2026
Evidence coverage
85%
CISA KEVCatalog member

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

FIRST EPSS27.85%

2026-07-18 · v2026.06.15 · percentile 97.9%

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

CVEderivative copy
container

CVE Program Container

talosoriginal assertion
container

An exploitable remote code execution vulnerability exists in the upload.cgi functionality of Sierra Wireless AirLink ES450 FW 4.9.3. A specially crafted HTTP request can upload a file, resulting in executable code being uploaded, and routable, to the webserver. An attacker can make an authenticated HTTP request to trigger this vulnerability.

CISA KEVoriginal assertion
observed_exploitation

Sierra Wireless AirLink ALEOS Unrestricted Upload of File with Dangerous Type Vulnerability

FIRST EPSSoriginal assertion
model_probability

Probability 0.278510000000; percentile 0.978790000000

Applicability

Cited product scope

Trace impact →
n/aSierra Wireless
[{"status": "affected", "version": "Sierra Wireless AirLink ES450 FW 4.9.3"}]unknown
Unknown vendorUnknown product
cpe:2.3:h:sierrawireless:airlink_es440:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:sierrawireless:airlink_es450:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:sierrawireless:airlink_gx400:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:sierrawireless:airlink_gx440:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:sierrawireless:airlink_gx450:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:sierrawireless:airlink_ls300:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:sierrawireless:airlink_lx40:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:sierrawireless:airlink_lx60:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:sierrawireless:airlink_mp70:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:sierrawireless:airlink_mp70e:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:sierrawireless:airlink_rv50:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:h:sierrawireless:airlink_rv50x:-:*:*:*:*:*:*:*constrained
Unknown vendorUnknown product
cpe:2.3:o:sierrawireless:aleos:*:*:*:*:*:*:*:*; end excluding 4.4.9supported
Unknown vendorUnknown product
cpe:2.3:o:sierrawireless:aleos:*:*:*:*:*:*:*:*; end excluding 4.11.0supported
Unknown vendorUnknown product
cpe:2.3:o:sierrawireless:aleos:*:*:*:*:*:*:*:*; end excluding 4.9.4supported

Assessments

CVSS by origin

8.8
nvd@nist.govCVSS 3.1 · role PrimaryCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
9.0
nvd@nist.govCVSS 2.0 · role PrimaryAV:N/AC:L/Au:S/C:C/I:C/A:C
8.8
134c704f-9b21-4f2e-91b3-4a467353bcc0CVSS 3.1 · role SecondaryCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.8
CISA-ADPCVSS 3.1 · role unknownCVSS:3.1/AV:N/AC:L/PR:L/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.