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Known Exploited Vulnerability
9.0
HIGH CVSS 2.0
CVE-2018-4063
Sierra Wireless AirLink ALEOS Unrestricted Upload of File with Dangerous Type Vulnerability - [Actively Exploited]
Description

An exploitable remote code execution vulnerability exists in the upload.cgi functionality of Sierra Wireless AirLink ES450 FW 4.9.3. A specially crafted HTTP request can upload a file, resulting in executable code being uploaded, and routable, to the webserver. An attacker can make an authenticated HTTP request to trigger this vulnerability.

INFO

Published Date :

May 6, 2019, 7:29 p.m.

Last Modified :

Dec. 15, 2025, 3:18 p.m.

Remotely Exploit :

Yes !

Source :

[email protected]
CISA Notification
CISA KEV (Known Exploited Vulnerabilities)

For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.

Description :

Sierra Wireless AirLink ALEOS contains an unrestricted upload of file with dangerous type vulnerability. A specially crafted HTTP request can upload a file, resulting in executable code being uploaded, and routable, to the webserver. An attacker can make an authenticated HTTP request to trigger this vulnerability. The impacted product could be end-of-life (EoL) and/or end-of-service (EoS). Users should discontinue product utilization.

Required Action :

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Notes :

https://www.cisa.gov/news-events/ics-advisories/icsa-19-122-03 ; https://source.sierrawireless.com/resources/airlink/software_reference_docs/technical-bulletin/sierra-wireless-technical-bulletin---swi-psa-2019-003 ; https://source.sierrawireless.com/resources/airlink/hardware_reference_docs/airlink_es450_eol ; https://nvd.nist.gov/vuln/detail/CVE-2018-4063

Affected Products

The following products are affected by CVE-2018-4063 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Sierrawireless airlink_es450_firmware
2 Sierrawireless aleos
3 Sierrawireless airlink_es440
4 Sierrawireless airlink_es450
5 Sierrawireless airlink_gx440
6 Sierrawireless airlink_gx450
7 Sierrawireless airlink_ls300
8 Sierrawireless airlink_lx40
9 Sierrawireless airlink_lx60
10 Sierrawireless airlink_mp70
11 Sierrawireless airlink_mp70e
12 Sierrawireless airlink_rv50
13 Sierrawireless airlink_rv50x
14 Sierrawireless airlink_gx400
: Total Affected Vendor : 1 | Products : 14
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 2.0 HIGH [email protected]
CVSS 3.0 HIGH [email protected]
CVSS 3.1 HIGH 134c704f-9b21-4f2e-91b3-4a467353bcc0
CVSS 3.1 HIGH [email protected]
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2018-4063.

URL Resource
http://packetstormsecurity.com/files/152648/Sierra-Wireless-AirLink-ES450-ACEManager-upload.cgi-Remote-Code-Execution.html Exploit VDB Entry
http://www.securityfocus.com/bid/108147 Broken Link
https://ics-cert.us-cert.gov/advisories/ICSA-19-122-03 Third Party Advisory US Government Resource
https://talosintelligence.com/vulnerability_reports/TALOS-2018-0748 Exploit Third Party Advisory
http://packetstormsecurity.com/files/152648/Sierra-Wireless-AirLink-ES450-ACEManager-upload.cgi-Remote-Code-Execution.html Exploit VDB Entry
http://www.securityfocus.com/bid/108147 Broken Link
https://ics-cert.us-cert.gov/advisories/ICSA-19-122-03 Third Party Advisory US Government Resource
https://talosintelligence.com/vulnerability_reports/TALOS-2018-0748 Exploit Third Party Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-4063 US Government Resource
https://www.forescout.com/blog/ot-network-security-threats-industrial-routers-under-attack/ Exploit Third Party Advisory
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2018-4063 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2018-4063 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2018-4063 vulnerability anywhere in the article.

  • CybersecurityNews
Cybersecurity Weekly Recap – PornHub Breach, Cisco 0-Day, Amazon Detains DPRK IT Worker, and more

In a week that revealed the flaws in digital trust, cybersecurity headlines were filled with high-profile breaches, zero-day exploits, and bold nation-state espionage. Attackers claimed to have swiped ... Read more

Published Date: Dec 21, 2025 (3 days ago)
  • CybersecurityNews
CISA Adds Sierra Router Vulnerability to KEV Catalogue Following Active Exploitation

A critical vulnerability affecting Sierra Wireless routers has been added to its Known Exploited Vulnerabilities (KEV) catalog. This decision comes after evidence emerged that the flaw is being active ... Read more

Published Date: Dec 15, 2025 (1 week, 2 days ago)
  • TheCyberThrone
CISA adds Chrome ans Sierra Bugs to KEV Catalog

CISA has added two high‑impact vulnerabilities—CVE‑2025‑14174 in Google Chromium and CVE‑2018‑4063 in Sierra Wireless AirLink ALEOS—to the Known Exploited Vulnerabilities (KEV) catalog after confirmin ... Read more

Published Date: Dec 13, 2025 (1 week, 4 days ago)
  • The Hacker News
CISA Adds Actively Exploited Sierra Wireless Router Flaw Enabling RCE Attacks

Dec 13, 2025Ravie LakshmananNetwork Security / Vulnerability The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Friday added a high-severity flaw impacting Sierra Wireless AirLink A ... Read more

Published Date: Dec 13, 2025 (1 week, 4 days ago)

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2018-4063 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Modified Analysis by [email protected]

    Dec. 15, 2025

    Action Type Old Value New Value
    Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Removed CVSS V3 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Added CPE Configuration AND OR *cpe:2.3:o:sierrawireless:aleos:*:*:*:*:*:*:*:* versions up to (excluding) 4.4.9 OR cpe:2.3:h:sierrawireless:airlink_gx440:-:*:*:*:*:*:*:* cpe:2.3:h:sierrawireless:airlink_es440:-:*:*:*:*:*:*:* cpe:2.3:h:sierrawireless:airlink_ls300:-:*:*:*:*:*:*:* cpe:2.3:h:sierrawireless:airlink_gx400:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:sierrawireless:aleos:*:*:*:*:*:*:*:* versions up to (excluding) 4.11.0 OR cpe:2.3:h:sierrawireless:airlink_rv50:-:*:*:*:*:*:*:* cpe:2.3:h:sierrawireless:airlink_rv50x:-:*:*:*:*:*:*:* cpe:2.3:h:sierrawireless:airlink_mp70:-:*:*:*:*:*:*:* cpe:2.3:h:sierrawireless:airlink_mp70e:-:*:*:*:*:*:*:* cpe:2.3:h:sierrawireless:airlink_lx40:-:*:*:*:*:*:*:* cpe:2.3:h:sierrawireless:airlink_lx60:-:*:*:*:*:*:*:*
    Changed CPE Configuration AND OR cpe:2.3:h:sierrawireless:airlink_es450:-:*:*:*:*:*:*:* OR *cpe:2.3:o:sierrawireless:airlink_es450_firmware:4.9.3:*:*:*:*:*:*:* AND OR cpe:2.3:h:sierrawireless:airlink_gx450:-:*:*:*:*:*:*:* cpe:2.3:h:sierrawireless:airlink_es450:-:*:*:*:*:*:*:* OR *cpe:2.3:o:sierrawireless:aleos:*:*:*:*:*:*:*:* versions up to (excluding) 4.9.4
    Changed CPE Configuration AND OR cpe:2.3:h:sierrawireless:airlink_es450:-:*:*:*:*:*:*:* OR *cpe:2.3:o:sierrawireless:airlink_es450_firmware:4.9.3:*:*:*:*:*:*:* AND OR cpe:2.3:h:sierrawireless:airlink_gx450:-:*:*:*:*:*:*:* cpe:2.3:h:sierrawireless:airlink_es450:-:*:*:*:*:*:*:* OR *cpe:2.3:o:sierrawireless:aleos:*:*:*:*:*:*:*:* versions up to (excluding) 4.9.4
    Added Reference Type Talos: http://packetstormsecurity.com/files/152648/Sierra-Wireless-AirLink-ES450-ACEManager-upload.cgi-Remote-Code-Execution.html Types: Exploit, VDB Entry
    Added Reference Type Talos: http://www.securityfocus.com/bid/108147 Types: Broken Link
    Added Reference Type Talos: https://ics-cert.us-cert.gov/advisories/ICSA-19-122-03 Types: Third Party Advisory, US Government Resource
    Added Reference Type CISA-ADP: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-4063 Types: US Government Resource
    Added Reference Type CISA-ADP: https://www.forescout.com/blog/ot-network-security-threats-industrial-routers-under-attack/ Types: Exploit, Third Party Advisory
    Added Reference Type CVE: http://packetstormsecurity.com/files/152648/Sierra-Wireless-AirLink-ES450-ACEManager-upload.cgi-Remote-Code-Execution.html Types: Exploit, VDB Entry
    Added Reference Type CVE: https://ics-cert.us-cert.gov/advisories/ICSA-19-122-03 Types: Third Party Advisory, US Government Resource
    Added Reference Type CVE: http://www.securityfocus.com/bid/108147 Types: Broken Link
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Dec. 12, 2025

    Action Type Old Value New Value
    Added Reference https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-4063
    Added Reference https://www.forescout.com/blog/ot-network-security-threats-industrial-routers-under-attack/
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Dec. 12, 2025

    Action Type Old Value New Value
    Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Added CWE CWE-434
  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference http://packetstormsecurity.com/files/152648/Sierra-Wireless-AirLink-ES450-ACEManager-upload.cgi-Remote-Code-Execution.html
    Added Reference http://www.securityfocus.com/bid/108147
    Added Reference https://ics-cert.us-cert.gov/advisories/ICSA-19-122-03
    Added Reference https://talosintelligence.com/vulnerability_reports/TALOS-2018-0748
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    May. 07, 2019

    Action Type Old Value New Value
    Added Reference https://ics-cert.us-cert.gov/advisories/ICSA-19-122-03 [No Types Assigned]
    Added Reference http://www.securityfocus.com/bid/108147 [No Types Assigned]
    Added Reference http://packetstormsecurity.com/files/152648/Sierra-Wireless-AirLink-ES450-ACEManager-upload.cgi-Remote-Code-Execution.html [No Types Assigned]
  • Initial Analysis by [email protected]

    May. 07, 2019

    Action Type Old Value New Value
    Added CVSS V2 (AV:N/AC:L/Au:S/C:C/I:C/A:C)
    Added CVSS V3 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
    Changed Reference Type https://talosintelligence.com/vulnerability_reports/TALOS-2018-0748 No Types Assigned https://talosintelligence.com/vulnerability_reports/TALOS-2018-0748 Exploit, Third Party Advisory
    Added CWE CWE-434
    Added CPE Configuration AND OR *cpe:2.3:o:sierrawireless:airlink_es450_firmware:4.9.3:*:*:*:*:*:*:* OR cpe:2.3:h:sierrawireless:airlink_es450:-:*:*:*:*:*:*:*
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
Base CVSS Score: 8.8
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Base CVSS Score: 8.8
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact
Base CVSS Score: 9
Access Vector
Access Complexity
Authentication
Confidentiality Impact
Integrity Impact
Availability Impact
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

1.09 }} 0.15%

score

0.77376

percentile