No exploitation reportedFix available

CVE-2017-15043

Q: Is CVE-2017-15043 actively exploited?

Active exploitation of CVE-2017-15043 has not been confirmed. Its EPSS score was 4.3% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2017-15043?

CVE-2017-15043 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

No exploitation reported by the sources we read.

Published2018-05-04
Fixed in4.4.5
WeaknessCWE-20

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

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.

Timeline

dates in UTC

2018-05-0420:29CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2017-15043?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2017-15043?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Sierrawireless es440 firmwareversion to verify

Branch	Affected	Fixed in	Source
4.4	< 4.4.5	4.4.5	NVD

Sierrawireless es450 firmwareversion to verify

Branch	Affected	Fixed in	Source
4.9	< 4.9	4.9	NVD

Sierrawireless gx400 firmwareversion to verify

Branch	Affected	Fixed in	Source
4.4	< 4.4.5	4.4.5	NVD

7 more products in the sources.

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Sierrawireless es440 firmware to 4.4.5

Advisories and patches

source.sierrawireless.comMitigation · Vendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.08.8read 2026-10-23
NVDCVSS 2.09read 2026-10-23
NVDweakness (CWE)CWE-20read 2026-10-23
FIRST EPSSEPSS score4.3 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Published: 2018-05-04
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2017-15043?

Is CVE-2017-15043 actively exploited?

Active exploitation of CVE-2017-15043 has not been confirmed. Its EPSS score was 4.3% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2017-15043?

CVE-2017-15043 has a CVSS v3 base score of 8.8 (HIGH severity), with vector string CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

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