Siemens SIMATIC and SCALANCE Devices Use After Free (CVE-2023-3390)

high Tenable OT Security Plugin ID 504444

Synopsis

The remote OT asset is affected by a vulnerability.

Description

A use-after-free vulnerability was found in the Linux kernel's netfilter subsystem in net/netfilter/nf_tables_api.c. Mishandled error handling with NFT_MSG_NEWRULE makes it possible to use a dangling pointer in the same transaction causing a use-after-free vulnerability. This flaw allows a local attacker with user access to cause a privilege escalation issue. We recommend upgrading past commit1240eb93f0616b21c675416516ff3d74798fdc97.

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: 504444

Version: 1.1

Type: remote

Family: Tenable.ot

Published: 11/14/2025

Updated: 11/14/2025

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v3

Risk Factor: High

Base Score: 7.8

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

Vulnerability Information

CPE: cpe:/o:siemens:scalance_xcm332_firmware:2.4, cpe:/o:siemens:scalance_xrh334_%2824_v_dc%2c_8xfo%2c_cc%29_firmware:2.4, cpe:/o:siemens:scalance_xrm334_%28230_v_ac%2c_8xfo%29_firmware:2.4, cpe:/o:siemens:scalance_xch328_firmware:2.4, cpe:/o:siemens:simatic_s7-1500_tm_mfp_firmware, cpe:/o:siemens:scalance_xrm334_%2824_v_dc%2c_12xfo%29_firmware:2.4, cpe:/o:siemens:scalance_xrm334_%2824_v_dc%2c_8xfo%29_firmware:2.4, cpe:/o:siemens:scalance_xrm334_%282x230_v_ac%2c_12xfo%29_firmware:2.4, cpe:/o:siemens:scalance_xrm334_%28230_v_ac%2c_12xfo%29_firmware:2.4, cpe:/o:siemens:scalance_xrm334_%282x230_v_ac%2c_8xfo%29_firmware:2.4, cpe:/o:siemens:scalance_xcm328_firmware:2.4, cpe:/o:siemens:scalance_xcm324_firmware:2.4

Required KB Items: Tenable.ot/Siemens

Exploit Ease: No known exploits are available

Patch Publication Date: 6/13/2023

Vulnerability Publication Date: 6/13/2023

Reference Information

CVE: CVE-2023-3390

CWE: 416

Detections

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