A vulnerability in Sierra Wireless AirLink GX400, GX440, ES440, and LS300 routers with firmware before 4.4.5 and GX450, ES450, RV50, RV50X,…

published 2018-05-04 8 y ago modified 2026-06-17 4 mo ago also EUVD-2017-6518

cvss: 8.8; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 4.3%; EPSS 4.3% 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 4.4.5 and GX450, ES450, RV50, RV50X, MP70, and MP70E routers with firmware before 4.9 could allow an authenticated remote attacker to execute arbitrary code and gain full control of an affected system, including issuing commands with root privileges. This vulnerability is due to insufficient input validation on user-controlled input in an HTTP request to the targeted device. An attacker in possession of router login credentials could exploit this vulnerability by sending a crafted HTTP request to an affected system.

Patch / fix

fixed in 10

sierrawireless gx440_firmware 4.4.5
sierrawireless es440_firmware 4.4.5
sierrawireless ls300_firmware 4.4.5
sierrawireless gx400_firmware 4.4.5
sierrawireless es450_firmware 4.9
sierrawireless rv50_firmware 4.9
sierrawireless rv50x_firmware 4.9
sierrawireless mp70_firmware 4.9
sierrawireless mp70e_firmware 4.9
sierrawireless gx450_firmware 4.9

Exploit prediction

4.33% 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	8.8	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	9.0	AV:N/AC:L/Au:S/C:C/I:C/A:C

Classification

Weakness

CWE-20 Improper Input Validation

References

source.sierrawireless.com /resources/airlink/software_reference_docs/technical-bulletin/swi-psa-2018-003-technical-bulletin-reaper/
mitigation, vendor-advisory

Sources

CVE List CVE-2017-15043
NVD CVE-2017-15043

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