What is CVE-2017-15043?

CVE-2017-15043 is a high-severity vulnerability in Sierrawireless Es440, classified under Improper Input Validation. CVSS score: 8.8/10. Published 2018-05-04.

How severe is CVE-2017-15043?

High severity. CVSS v3 base score is 8.8 out of 10.

Improper input validation in Sierrawireless Es440

CVE-2017-15043

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.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

Published 2018-05-04 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.044 (91.0th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 91.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.042 · newest: 0.044 · change: +0.002

Affected products

Weakness classification (CWE)

CWE-20 — Improper Input Validation

References

source.sierrawireless.com/resources/airlink/software_reference_docs/technical-b… (Mitigation, Vendor Advisory)

Frequently asked questions

What is CVE-2017-15043?: CVE-2017-15043 is a high-severity vulnerability in Sierrawireless Es440, classified under Improper Input Validation. CVSS score: 8.8/10. Published 2018-05-04.
How severe is CVE-2017-15043?: High severity. CVSS v3 base score is 8.8 out of 10.