CVE-2017-15043

Severity: high (CVSS 8.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 4.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2018-05-04 · updated 2026-06-17
Weakness: CWE-20

Description

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.

Affected products

SierraWireless Es440 Firmware: before 4.4.5 — fixed in 4.4.5
SierraWireless Es450 Firmware: before 4.9 — fixed in 4.9
SierraWireless Gx400 Firmware: before 4.4.5 — fixed in 4.4.5
SierraWireless Gx440 Firmware: before 4.4.5 — fixed in 4.4.5
SierraWireless Gx450 Firmware: before 4.9 — fixed in 4.9
SierraWireless Ls300 Firmware: before 4.4.5 — fixed in 4.4.5
SierraWireless Mp70 Firmware: before 4.9 — fixed in 4.9
SierraWireless Mp70E Firmware: before 4.9 — fixed in 4.9
SierraWireless Rv50 Firmware: before 4.9 — fixed in 4.9
SierraWireless Rv50X Firmware: before 4.9 — fixed in 4.9

How to fix

Upgrade to a fixed version: SierraWireless Es440 Firmware 4.4.5; SierraWireless Es450 Firmware 4.9; SierraWireless Gx400 Firmware 4.4.5; SierraWireless Gx440 Firmware 4.4.5; SierraWireless Gx450 Firmware 4.9; SierraWireless Ls300 Firmware 4.4.5; SierraWireless Mp70 Firmware 4.9; SierraWireless Mp70E Firmware 4.9; SierraWireless Rv50 Firmware 4.9; SierraWireless Rv50X Firmware 4.9. Check the vendor advisory for mitigations.

References

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