Lexmark Printers Improper Restriction of XML External Entity Reference (CVE-2023-40239)

high Tenable OT Security Plugin ID 503868

Synopsis

The remote OT asset is affected by a vulnerability.

Description

Certain Lexmark devices (such as CS310) before 2023-08-25 allow XXE attacks, leading to information disclosure. The fixed firmware version is LW80.*.P246, i.e., '*' indicates that the full version specification varies across product model family, but firmware level P246 (or higher) is required to remediate the 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.

Plugin Details

Severity: High

ID: 503868

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 v3

Risk Factor: High

Base Score: 7.5

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

Vulnerability Information

CPE: cpe:/o:lexmark:cs317_firmware, cpe:/o:lexmark:mx610_firmware, cpe:/o:lexmark:xm7270_firmware, cpe:/o:lexmark:cx317_firmware, cpe:/o:lexmark:ms817_firmware, cpe:/o:lexmark:ms415_firmware, cpe:/o:lexmark:mx310_firmware, cpe:/o:lexmark:mx810_firmware, cpe:/o:lexmark:xm9165_firmware, cpe:/o:lexmark:xm9145_firmware, cpe:/o:lexmark:ms818_firmware, cpe:/o:lexmark:mx717_firmware, cpe:/o:lexmark:xc2130_firmware, cpe:/o:lexmark:cs417_firmware, cpe:/o:lexmark:m5163de_firmware, cpe:/o:lexmark:xm5270_firmware, cpe:/o:lexmark:xm1145_firmware, cpe:/o:lexmark:mx811_firmware, cpe:/o:lexmark:ms812de_firmware, cpe:/o:lexmark:xm7263_firmware, cpe:/o:lexmark:m1140_firmware, cpe:/o:lexmark:mx911_firmware, cpe:/o:lexmark:mx611_firmware, cpe:/o:lexmark:ms312_firmware, cpe:/o:lexmark:m5170_firmware, cpe:/o:lexmark:m3150dn_firmware, cpe:/o:lexmark:ms911_firmware, cpe:/o:lexmark:mx417_firmware, cpe:/o:lexmark:cs517_firmware, cpe:/o:lexmark:ms310_firmware, cpe:/o:lexmark:xm3150_firmware, cpe:/o:lexmark:ms810dn_firmware, cpe:/o:lexmark:cx417_firmware, cpe:/o:lexmark:m3150de_firmware, cpe:/o:lexmark:ms610dn_firmware, cpe:/o:lexmark:mx617_firmware, cpe:/o:lexmark:mx912_firmware, cpe:/o:lexmark:xm7155_firmware, cpe:/o:lexmark:cx410_firmware, cpe:/o:lexmark:mx710_firmware, cpe:/o:lexmark:ms812dn_firmware, cpe:/o:lexmark:cs510_firmware, cpe:/o:lexmark:ms317_firmware, cpe:/o:lexmark:mx910_firmware, cpe:/o:lexmark:mx510_firmware, cpe:/o:lexmark:c2132_firmware, cpe:/o:lexmark:mx517_firmware, cpe:/o:lexmark:ms617_firmware, cpe:/o:lexmark:ms811_firmware, cpe:/o:lexmark:ms517_firmware, cpe:/o:lexmark:mx812_firmware, cpe:/o:lexmark:cx517_firmware, cpe:/o:lexmark:xm1140_firmware, cpe:/o:lexmark:ms315_firmware, cpe:/o:lexmark:mx317_firmware, cpe:/o:lexmark:xm7163_firmware, cpe:/o:lexmark:xc2132_firmware, cpe:/o:lexmark:cx510_firmware, cpe:/o:lexmark:ms610de_firmware, cpe:/o:lexmark:xm5163_firmware, cpe:/o:lexmark:ms417_firmware, cpe:/o:lexmark:ms510_firmware, cpe:/o:lexmark:mx410_firmware, cpe:/o:lexmark:xm7170_firmware, cpe:/o:lexmark:m1140%2b_firmware, cpe:/o:lexmark:xm5170_firmware, cpe:/o:lexmark:cs410_firmware, cpe:/o:lexmark:m5163dn_firmware, cpe:/o:lexmark:cs310_firmware, cpe:/o:lexmark:xm1135_firmware, cpe:/o:lexmark:mx511_firmware, cpe:/o:lexmark:m5155_firmware, cpe:/o:lexmark:xm9155_firmware, cpe:/o:lexmark:ms711_firmware, cpe:/o:lexmark:ms410_firmware, cpe:/o:lexmark:mx718_firmware, cpe:/o:lexmark:ms710_firmware, cpe:/o:lexmark:cx310_firmware, cpe:/o:lexmark:ms810de_firmware, cpe:/o:lexmark:m1145_firmware, cpe:/o:lexmark:mx711_firmware, cpe:/o:lexmark:xm5263_firmware

Required KB Items: Tenable.ot/Lexmark

Exploit Ease: No known exploits are available

Patch Publication Date: 9/1/2023

Vulnerability Publication Date: 9/1/2023

Reference Information

CVE: CVE-2023-40239

CWE: 611

Detections

Analytics