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Lexmark Printers Improper Restriction of Operations within the Bounds of a Memory Buffer (CVE-2018-15520)

critical Tenable OT Security Plugin ID 503861

Synopsis

The remote OT asset is affected by a vulnerability.

Description

Various Lexmark devices have a Buffer Overflow vulnerability.

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=TE892

Plugin Details

Severity: Critical

ID: 503861

Version: 1.2

Type: remote

Family: Tenable.ot

Published: 11/5/2025

Updated: 11/10/2025

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.5

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

CVSS Score Source: CVE-2018-15520

CVSS v3

Risk Factor: Critical

Base Score: 9.8

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

Vulnerability Information

CPE: cpe:/o:lexmark:cx92x_firmware:cxtmh, cpe:/o:lexmark:mb2338_firmware:mxngm, cpe:/o:lexmark:mx42x_firmware:mxtgm, cpe:/o:lexmark:cx860_firmware:cxtpp, cpe:/o:lexmark:xc8155_firmware:cxtpp, cpe:/o:lexmark:mx72x_firmware:mxtgw, cpe:/o:lexmark:mb2442_firmware:mxtgm, cpe:/o:lexmark:mb2546_firmware:mxtgm, cpe:/o:lexmark:xc8160_firmware:cxtpp, cpe:/o:lexmark:mc2325_firmware:cxnzj, cpe:/o:lexmark:mc2535_firmware:cxtzj, cpe:/o:lexmark:cx72x_firmware:cxtat, cpe:/o:lexmark:cx522_firmware:cxtzj, cpe:/o:lexmark:xc92x5_firmware:cxtmh, cpe:/o:lexmark:cx82x_firmware:cxtpp, cpe:/o:lexmark:mb2650_firmware:mxtgm, cpe:/o:lexmark:xc4240_firmware:cxtzj, cpe:/o:lexmark:mx52x_firmware:mxtgm, cpe:/o:lexmark:mx82x_firmware:mxtgw, cpe:/o:lexmark:cx62x_firmware:cxtzj, cpe:/o:lexmark:mx321_firmware:mxngm, cpe:/o:lexmark:mc2640_firmware:cxtzj, cpe:/o:lexmark:xm124x_firmware:mxtgm, cpe:/o:lexmark:mx622_firmware:mxtgm, cpe:/o:lexmark:cx421_firmware:cxnzj, cpe:/o:lexmark:xc2235_firmware:cxtzj, cpe:/o:lexmark:xm7355_firmware:mxtgw, cpe:/o:lexmark:xm7370_firmware:mxtgw, cpe:/o:lexmark:mb2770_firmware:mxtgw, cpe:/o:lexmark:xm5370_firmware:mxtgw, cpe:/o:lexmark:xc6152_firmware:cxtpp, cpe:/o:lexmark:xm3250_firmware:mxtgm, cpe:/o:lexmark:xc41x0_firmware:cxtat, cpe:/o:lexmark:mc2425_firmware:cxnzj

Required KB Items: Tenable.ot/Lexmark

Exploit Ease: No known exploits are available

Patch Publication Date: 6/28/2019

Vulnerability Publication Date: 6/28/2019

Reference Information

CVE: CVE-2018-15520

CWE: 119