How severe is CVE-2018-4069?

CVE-2018-4069 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2018-4069 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-4069?

CVE-2018-4069 affects Sierrawireless Airlink Es450 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-4069?

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-2018-4069 published?

CVE-2018-4069 was published on 2019-05-06 and last updated on 2026-06-17.

CVE-2018-4069

CVE-2018-4069 is a high-severity vulnerability in Sierrawireless Airlink Es450 Firmware with a CVSS 3.x base score of 7.5. 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-200.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 4% (89th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-200
Affected product: Sierrawireless Airlink Es450 Firmware
Published: 2019-05-06
Last modified: 2026-06-17

Description

An information disclosure vulnerability exists in the ACEManager authentication functionality of Sierra Wireless AirLink ES450 FW 4.9.3. The ACEManager authentication functionality is done in plaintext XML to the web server. An attacker can listen to network traffic upstream from the device to capitalize on this vulnerability.

Frequently asked questions

What is CVE-2018-4069?: An information disclosure vulnerability exists in the ACEManager authentication functionality of Sierra Wireless AirLink ES450 FW 4.9.3. The ACEManager authentication functionality is done in plaintext XML to the web server. An attacker can listen to network traffic upstream from the device to capitalize on this vulnerability.
How severe is CVE-2018-4069?: CVE-2018-4069 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2018-4069 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 4% (89th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-4069?: CVE-2018-4069 affects Sierrawireless Airlink Es450 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-4069?: 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-2018-4069 published?: CVE-2018-4069 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:*:*:*:*:*:*:*

More vulnerabilities in Sierrawireless Airlink Es450 Firmware

CVE-2018-4073 — High (CVSS 8.8): An exploitable Permission Assignment vulnerability exists in the ACEManager EmbeddedAceSet_Task.cgi functionality of…
CVE-2018-4072 — High (CVSS 8.8): An exploitable Permission Assignment vulnerability exists in the ACEManager EmbeddedAceSet_Task.cgi functionality of…
CVE-2018-4071 — High (CVSS 8.8): An exploitable Information Disclosure vulnerability exists in the ACEManager EmbeddedAceGet_Task.cgi functionality of…
CVE-2018-4070 — High (CVSS 8.8): An exploitable Information Disclosure vulnerability exists in the ACEManager EmbeddedAceGet_Task.cgi functionality of…
CVE-2018-4066 — High (CVSS 8.8): An exploitable cross-site request forgery vulnerability exists in the ACEManager functionality of Sierra Wireless…
CVE-2018-4061 — High (CVSS 8.8): An exploitable command injection vulnerability exists in the ACEManager iplogging.cgi functionality of Sierra Wireless…

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