Detections
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Lexmark Printers Exposure of Sensitive Information to an Unauthorized Actor (CVE-2018-17944)

medium Tenable OT Security Plugin ID 503857

Synopsis

The remote OT asset is affected by a vulnerability.

Description

On certain Lexmark devices that communicate with an LDAP or SMTP server, a malicious administrator can discover LDAP or SMTP credentials by changing that server's hostname to one that they control, and then capturing the credentials that are sent there. This occurs because stored credentials are not automatically deleted upon that type of hostname change.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.

Solution

Refer to the vendor advisory.

See Also

http://support.lexmark.com/index?page=content&id=TE909

Plugin Details

Severity: Medium

ID: 503857

Version: 1.1

Type: remote

Family: Tenable.ot

Published: 11/5/2025

Updated: 11/5/2025

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 4

Vector: CVSS2#AV:N/AC:L/Au:S/C:P/I:N/A:N

CVSS Score Source: CVE-2018-17944

CVSS v3

Risk Factor: Medium

Base Score: 4.9

Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

Vulnerability Information

CPE: cpe:/o:lexmark:xc4150_firmware:-, cpe:/o:lexmark:xc6152_firmware:-, cpe:/o:lexmark:cx725h_firmware:-, cpe:/o:lexmark:cx860_firmware:-, cpe:/o:lexmark:cx825_firmware:-, cpe:/o:lexmark:xc8155_firmware:-, cpe:/o:lexmark:cx820_firmware:-, cpe:/o:lexmark:xc8160_firmware:-

Required KB Items: Tenable.ot/Lexmark

Exploit Ease: No known exploits are available

Patch Publication Date: 3/12/2019

Vulnerability Publication Date: 3/12/2019

Reference Information

CVE: CVE-2018-17944

CWE: 200