Detections
Analytics

Siemens SIMATIC S7-1500 CPU 1518 MFP Improper Neutralization of Null Byte or NUL Character (CVE-2025-61985)

low Tenable OT Security Plugin ID 505842

Synopsis

The remote OT asset is affected by a vulnerability.

Description

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

https://cert-portal.siemens.com/productcert/html/ssa-019113.html

https://www.cisa.gov/news-events/ics-advisories/ICSA-26-209-04

Plugin Details

Severity: Low

ID: 505842

File Name: tenable_ot_siemens_CVE-2025-61985.nasl

Version: 1.4

Type: Remote

Family: Tenable.ot

Published: 7/27/2026

Updated: 8/12/2026

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Low

Score: 2.1

Percentile: 7.26

CVSS v2

Risk Factor: Low

Base Score: 2.4

Temporal Score: 1.8

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

CVSS Score Source: CVE-2025-61985

CVSS v3

Risk Factor: Low

Base Score: 3.6

Temporal Score: 3.2

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

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:siemens:simatic_s7-1500_cpu_firmware:3.1.6, cpe:/o:siemens:siplus_s7-1500_cpu_firmware

Required KB Items: Tenable.ot/Siemens

Exploit Ease: No known exploits are available

Patch Publication Date: 7/14/2026

Vulnerability Publication Date: 10/6/2025

Reference Information

CVE: CVE-2025-61985

CWE: 158

ICSA: 26-209-04