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CVE-2018-4063
CWE-434
Critical
96.9
RPSRPS range: 0–105; KEV-listed vulnerabilities can receive an exploitation amplifier.
Description
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.
Source: NVD
Signals
- CVSS
- 8.8
- High · v3.1
- EPSS
- 27.05%
- Probability of exploitation in the next 30 days (FIRST)
- CISA KEV
- In CISA KEV since Dec 2025
- Fix commit
- No known fix commit
- Sources: MoreFixes, FreshFixes
- Weakness
- CWE-434
- Published
- 6 May 2019
- Last modified 15 Dec 2025
How to read these signals: RPS · EPSS · CISA KEV · Data sources
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Data as of 7 Oct 2026, 05:16 UK time