---
cve: "CVE-2018-4063"
severity: "HIGH"
cvss: 8.8
epss: "27.1%"
vendor: "n/a"
kev: true
exploited: true
published: "2019-05-06 19:29:00"
tags: [cve, security, high]
source: tsecurity.de CVE-Dossier
exported: "2026-10-08T13:34:45+02:00"
---

# CVE-2018-4063

> 8.8 HIGH · ⚠️ CISA KEV (300 Tage) · 🔓 Exploited · 🧪 PoC

## Beschreibung

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-Anreicherung (vulnrichment/ADP)

- CISA KEV seit: **12.12.2025**
- CISA-SSVC (Coordinator, v2.0.3):
  - Exploitation: **active**
  - Automatable: **no**
  - Technical Impact: **total**

## CVSS-Vektor

```
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
```

| Metrik | Wert | Bewertung |
|---|---|---|
| AV Angriffsvektor | Netzwerk | bad |
| AC Komplexität | Gering | bad |
| PR Privilegien | Gering | warn |
| UI Interaktion | Keine | bad |
| S Scope | Unverändert | good |
| C Vertraulichkeit | Hoch | bad |
| I Integrität | Hoch | bad |
| A Verfügbarkeit | Hoch | bad |

## Referenzen

- <http://packetstormsecurity.com/files/152648/Sierra-Wireless-AirLink-ES450-ACEManager-upload.cgi-Remote-Code-Execution.html>
- <https://ics-cert.us-cert.gov/advisories/ICSA-19-122-03>
- <http://www.securityfocus.com/bid/108147>
- <https://talosintelligence.com/vulnerability_reports/TALOS-2018-0748>
- <https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-4063>
- <https://www.forescout.com/blog/ot-network-security-threats-industrial-routers-under-attack/>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/sicherheitsluecken/cve-2018-4063/) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI WID (CSAF)_