HOMEVULNERABILITIESCVE-2018-4062
HIGH

CVE-2018-4062

CWE-798Published: May 6, 2019· Updated: Jun 17, 2026

8.1
CVSS v3.1

Official Description

A hard-coded credentials vulnerability exists in the snmpd function of the Sierra Wireless AirLink ES450 FW 4.9.3. Activating snmpd outside of the WebUI can cause the activation of the hard-coded credentials, resulting in the exposure of a privileged user. An attacker can activate snmpd without any configuration changes to trigger this vulnerability.

NVD Source

Technical Analysis

CVE-2018-4062 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 8.1.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorNetwork
Attack ComplexityHigh
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected Vendors & Products

sierrawireless2 product(s)
airlink es450 firmwareairlink es450
Source: NVD CPE · 2 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttp://packetstormsecurity.com/files/152647/Sierra-Wireless-AirLink-ES450-SNMPD-Hard-Coded-Credentials.html
ADVISORYhttp://www.securityfocus.com/bid/108147
ADVISORYhttps://ics-cert.us-cert.gov/advisories/ICSA-19-122-03
ADVISORYhttps://talosintelligence.com/vulnerability_reports/TALOS-2018-0747
ADVISORYhttp://packetstormsecurity.com/files/152647/Sierra-Wireless-AirLink-ES450-SNMPD-Hard-Coded-Credentials.html
ADVISORYhttp://www.securityfocus.com/bid/108147
ADVISORYhttps://ics-cert.us-cert.gov/advisories/ICSA-19-122-03
ADVISORYhttps://talosintelligence.com/vulnerability_reports/TALOS-2018-0747

All References (8)

→
http://packetstormsecurity.com/files/152647/Sierra-Wireless-AirLink-ES450-SNMPD-Hard-Coded-Credentials.htmlExploit · Third Party Advisory · VDB Entry
→
http://www.securityfocus.com/bid/108147Third Party Advisory · VDB Entry
→
https://ics-cert.us-cert.gov/advisories/ICSA-19-122-03Third Party Advisory · VDB Entry
→
https://talosintelligence.com/vulnerability_reports/TALOS-2018-0747Exploit · Third Party Advisory
→
http://packetstormsecurity.com/files/152647/Sierra-Wireless-AirLink-ES450-SNMPD-Hard-Coded-Credentials.htmlExploit · Third Party Advisory · VDB Entry
→
http://www.securityfocus.com/bid/108147Third Party Advisory · VDB Entry
→
https://ics-cert.us-cert.gov/advisories/ICSA-19-122-03Third Party Advisory · VDB Entry
→
https://talosintelligence.com/vulnerability_reports/TALOS-2018-0747Exploit · Third Party Advisory

Quick Facts

CVE IDCVE-2018-4062
CVSS Score8.1 / 10
SeverityHIGH
WeaknessCWE-798
CISA KEVNo
Affected1 vendor(s)
PublishedMay 6, 2019

Related CVEs (CWE-798)

CVE-2026-45336
10.0
CVE-2021-40519
10.0
CVE-2020-6779
10.0
CVE-2026-22769
KEV10.0
CVE-2021-0248
10.0
CVE-2023-1748
10.0

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2018-4062 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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