Answer in brief
CVE-2018-4063 records a High severity vulnerability in CVE Program Container. The current sources mark it as known exploited. The current feed maps n/a/Sierra Wireless (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. Known-exploitation status makes exposure review time-sensitive. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps n/a/Sierra Wireless (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| n/a/Sierra Wirelessgeneric | Sierra Wireless AirLink ES450 FW 4.9.3 | Not reported |
Published upstream
May 6, 2019
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
May 22, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
May 24, 2026
Added to CISA KEV
Dec 12, 2025
Evidence: source:kev:kev:kev:recordAn 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.
Quoted source text, attributed separately from HOL analysis.
Answer in brief
CVE-2018-4063 records a High severity vulnerability in CVE Program Container. The current sources mark it as known exploited. The current feed maps n/a/Sierra Wireless (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
A CVSS score is not reported in the current record. Known-exploitation status makes exposure review time-sensitive. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps n/a/Sierra Wireless (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| n/a/Sierra Wirelessgeneric | Sierra Wireless AirLink ES450 FW 4.9.3 | Not reported |
Published upstream
May 6, 2019
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
May 22, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
May 24, 2026
Added to CISA KEV
Dec 12, 2025
Evidence: source:kev:kev:kev:recordAn 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.
Quoted source text, attributed separately from HOL analysis.