CVSS v3
7.5
HIGH
EPSS Score
4.1 %
exploit probability, as of 2026-09-25
CISA KEV
No
known exploited
Exploitation
—
SSVC status
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.
Technical details
- Published
- 2019-05-06
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.
Is CVE-2018-4069 actively exploited?
Active exploitation of CVE-2018-4069 has not been confirmed. Its EPSS score was 4.1% on 2026-09-25, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2018-4069?
CVE-2018-4069 has a CVSS v3 base score of 7.5 (HIGH severity).
Is CVE-2018-4069 affecting your environment?
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