CVE-2018-4069

An information disclosure vulnerability exists in the ACEManager authentication functionality of...

7.5 High

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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: None

What an attacker can affect

Confidentiality: High
Integrity: None
Availability: None

Exploit likelihood

4.06%Up 3.0 points since Apr 14, 2021

What each source reports

NVD Score used 7.5

Record: CVE-2018-4069
CVSS 3.0: 7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.0: 5.0 MediumAV:N/AC:L/Au:N/C:P/I:N/A:N
Weakness: CWE-200
Updated: 2026-11-02

CVE List No score

Record: CVE-2018-4069
Updated: 2026-11-02

EUVDEUVD-2018-15855 No score

Record: EUVD-2018-15855
Updated: 2026-11-03

GitHub AdvisoriesGHSA-22gr-gpph-j2c5 7.5

An information disclosure vulnerability exists in the ACEManager authentication functionality of...

Record: GHSA-22gr-gpph-j2c5
CVSS 3.0: 7.5 HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness: CWE-200
Updated: 2026-11-02

Affected products

sierrawireless airlink es450 firmware

History

History
Recorded	Changed	Sources
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2018-4069 is a high vulnerability (CVSS 7.5) in Sierrawireless Airlink Es450 Firmware, published May 6, 2019. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 4.06%, the 90th percentile. No source names a fixed version.