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Fencer Vulns
high 8.1

CVE-2018-4062 json

A hard-coded credentials vulnerability exists in the snmpd function of the Sierra Wireless AirLink ES450 FW 4.9.3.

published 2019-05-06 7 y ago modified 2026-06-17 4 mo ago also EUVD-2018-15848

cvss
8.1
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
5.3%
EPSS 5.3% chance of exploitation in 30 days, percentile 92%
public exploits
0
none known

Summary

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.

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

cisa ICSA-19-122-03 updated cvss 6.2

Sierra Wireless AirLink ALEOS (Update B)

  • Sierra Wireless GX450 and ES450 < 4.9.4 Sierra Wireless LS300 GX400 GX440 and ES440 < 4.4.9 Sierra Wireless MP70 MP70E RV50 RV50X LX40 and LX60 < 4.12
    affected: mitigation “LS300, GX400, GX440, ES440: ALEOS 4.4.9 The ALEOS 4.4.9 Release Note is available (login required)” source.sierrawireless.com

From CISA ICS and IT advisories (CSAF, https://github.com/cisagov/CSAF), a U.S. Government work; changed: reduced to products, statuses and remediations. CISA notification · csaf

Exploit prediction

5.32% chance of exploitation in the next 30 days, higher than 92% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • packetstormsecurity.com http://packetstormsecurity.com/files/152647/Sierra-Wireless-AirLink-ES450-SNMPD-Hard-Coded-Credentials.html referenced PoC, tagged "exploit" by a source, unverified
  • talosintelligence.com https://talosintelligence.com/vulnerability_reports/TALOS-2018-0747 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 8.1 CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 9.3 AV:N/AC:M/Au:N/C:C/I:C/A:C

Affected products

  • n/a Sierra Wireless

Classification

Weakness
  • CWE-798 Use of Hard-coded Credentials

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.