How severe is CVE-2018-4062?

CVE-2018-4062 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2018-4062 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-4062?

CVE-2018-4062 affects Sierrawireless Airlink Es450 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-4062?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2018-4062 published?

CVE-2018-4062 was published on 2019-05-06 and last updated on 2026-06-17.

CVE-2018-4062

CVE-2018-4062 is a high-severity vulnerability in Sierrawireless Airlink Es450 Firmware with a CVSS 3.x base score of 8.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-798.

Key facts

Severity: High (CVSS 3.x base score 8.1)
CVSS v2: 9.3
EPSS exploit prediction: 5% (92nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-798
Affected product: Sierrawireless Airlink Es450 Firmware
Published: 2019-05-06
Last modified: 2026-06-17

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.

Frequently asked questions

What is CVE-2018-4062?: 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.
How severe is CVE-2018-4062?: CVE-2018-4062 has a CVSS 3.x base score of 8.1, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2018-4062 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 5% (92nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-4062?: CVE-2018-4062 affects Sierrawireless Airlink Es450 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-4062?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2018-4062 published?: CVE-2018-4062 was published on 2019-05-06 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:sierrawireless:airlink_es450_firmware:4.9.3:*:*:*:*:*:*:*

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