A vulnerability in Sierra Wireless AirLink GX400, GX440, ES440, and LS300 routers with firmware before 4.4.7 and GX450, ES450, RV50, RV50X,…

published 2018-05-04 8 y ago modified 2026-06-17 4 mo ago also EUVD-2018-2325

cvss: 9.8; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 4.4%; EPSS 4.4% chance of exploitation in 30 days, percentile 91%
public exploits: 0; none known

A vulnerability in Sierra Wireless AirLink GX400, GX440, ES440, and LS300 routers with firmware before 4.4.7 and GX450, ES450, RV50, RV50X, MP70, and MP70E routers with firmware before 4.9.3 could allow an unauthenticated remote attacker to execute arbitrary code and gain full control of an affected system, including issuing commands with root privileges.

Patch / fix

fixed in 1

sierrawireless aleos 4.4.7, 4.9.3

Exploit prediction

4.40% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.0	9.8	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	10.0	AV:N/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness

CWE-862 Missing Authorization
CWE-1188 Initialization of a Resource with an Insecure Default

References

source.sierrawireless.com /resources/airlink/software_reference_docs/technical-bulletin/sierra-wireless-technical-bulletin---cve-2018-10
mitigation, vendor-advisory

Sources

CVE List CVE-2018-10251
NVD CVE-2018-10251

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary