Siemens SIMATIC S7-1500 TM MFP Missing Lock Check (CVE-2026-23382)

medium Tenable OT Security Plugin ID 506309

Synopsis

The remote OT asset is affected by a vulnerability.

Description

In the Linux kernel, the following vulnerability has been resolved:

HID: Add HID_CLAIMED_INPUT guards in raw_event callbacks missing them

In commit 2ff5baa9b527 ('HID: appleir: Fix potential NULL dereference at raw event handle'), we handle the fact that raw event callbacks can happen even for a HID device that has not been 'claimed' causing a crash if a broken device were attempted to be connected to the system.

Fix up the remaining in-tree HID drivers that forgot to add this same check to resolve the same issue.

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: Medium

ID: 506309

File Name: tenable_ot_siemens_CVE-2026-23382.nasl

Version: 1.1

Type: Remote

Family: Tenable.ot

Published: 10/20/2026

Updated: 10/20/2026

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.66

CVSS v3

Risk Factor: Medium

Base Score: 5.5

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

Vulnerability Information

CPE: cpe:/o:siemens:simatic_s7-1500_tm_mfp

Required KB Items: Tenable.ot/Siemens

Exploit Ease: No known exploits are available

Patch Publication Date: 10/13/2026

Vulnerability Publication Date: 10/13/2026

Reference Information

CVE: CVE-2026-23382

CWE: 414

Detections

Analytics