Siemens S7-1500 Heap-based Buffer Overflow (CVE-2025-11495)

low Tenable OT Security Plugin ID 505088

Synopsis

The remote OT asset is affected by a vulnerability.

Description

A vulnerability was determined in GNU Binutils 2.45. The affected element is the function elf_x86_64_relocate_section of the file elf64-x86-64.c of the component Linker. This manipulation causes heap- based buffer overflow. The attack can only be executed locally. The exploit has been publicly disclosed and may be utilized. Patch name:
6b21c8b2ecfef5c95142cbc2c32f185cb1c26ab0. To fix this issue, it is recommended to deploy a patch.

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: Low

ID: 505088

File Name: tenable_ot_siemens_CVE-2025-11495.nasl

Version: 1.1

Type: remote

Family: Tenable.ot

Published: 2/10/2026

Updated: 2/10/2026

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v3

Risk Factor: Low

Base Score: 3.3

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

Vulnerability Information

CPE: cpe:/o:siemens:simatic_s7-1500_cpu_firmware:3.1.5, cpe:/o:siemens:siplus_s7-1500_cpu_firmware:3.1.5

Required KB Items: Tenable.ot/Siemens

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 6/10/2025

Vulnerability Publication Date: 6/10/2025

Reference Information

CVE: CVE-2025-11495

CWE: 122

Detections

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