Siemens SIPROTEC 5 Using DIGSI5 Protocol Unrestricted Upload of File with Dangerous Type (CVE-2025-40808)

medium Tenable OT Security Plugin ID 505541

Synopsis

The remote OT asset is affected by a vulnerability.

Description

The affected application allows authenticated users to upload arbitrary files using DIGSI 5 protocol. This could allow an attacker to upload malicious configuration files, that could cause denial of service condition and potentially lead to code execution.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.

Solution

The following text was originally created by the Cybersecurity and Infrastructure Security Agency (CISA). The original can be found at CISA.gov.

Plugin Details

Severity: Medium

ID: 505541

File Name: tenable_ot_siemens_CVE-2025-40808.nasl

Version: 1.2

Type: Remote

Family: Tenable.ot

Published: 7/10/2026

Updated: 7/10/2026

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Medium

Score: 4.3

Percentile: 53.6

CVSS v3

Risk Factor: Medium

Base Score: 6.1

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

Vulnerability Information

CPE: cpe:/o:siemens:siprotec_5_6md85_%28cp200%29_firmware, cpe:/o:siemens:siprotec_5_7sa86_%28cp300%29_firmware, cpe:/o:siemens:siprotec_5_7sk85_%28cp300%29_firmware, cpe:/o:siemens:siprotec_5_7vk87_%28cp300%29_firmware, cpe:/o:siemens:siprotec_5_7sk85_%28cp200%29_firmware, cpe:/o:siemens:siprotec_5_7sa86_%28cp200%29_firmware, cpe:/o:siemens:siprotec_5_7ut87_%28cp300%29_firmware, cpe:/o:siemens:siprotec_5_7um85_%28cp300%29_firmware, cpe:/o:siemens:siprotec_5_7sd86_%28cp200%29_firmware, cpe:/o:siemens:siprotec_5_6md86_%28cp300%29_firmware, cpe:/o:siemens:siprotec_5_7sl87_%28cp200%29_firmware, cpe:/o:siemens:siprotec_5_7sd82_%28cp100%29_firmware, cpe:/o:siemens:siprotec_5_7sa87_%28cp200%29_firmware, cpe:/o:siemens:siprotec_5_7sl87_%28cp300%29_firmware, cpe:/o:siemens:siprotec_5_compact_7sx800_%28cp050%29_firmware, cpe:/o:siemens:siprotec_5_7sj85_%28cp300%29_firmware, cpe:/o:siemens:siprotec_5_7sk82_%28cp150%29_firmware, cpe:/o:siemens:siprotec_5_7ut85_%28cp300%29_firmware, cpe:/o:siemens:siprotec_5_7sd86_%28cp300%29_firmware, cpe:/o:siemens:siprotec_5_7sl86_%28cp200%29_firmware, cpe:/o:siemens:siprotec_5_7ss85_%28cp300%29_firmware, cpe:/o:siemens:siprotec_5_6mu85_%28cp300%29_firmware, cpe:/o:siemens:siprotec_5_7vk87_%28cp200%29_firmware, cpe:/o:siemens:siprotec_5_7ke85_%28cp300%29_firmware, cpe:/o:siemens:siprotec_5_7sj82_%28cp150%29_firmware, cpe:/o:siemens:siprotec_5_7ut85_%28cp200%29_firmware, cpe:/o:siemens:siprotec_5_6md89_%28cp300%29_firmware, cpe:/o:siemens:siprotec_5_7vu85_%28cp300%29_firmware, cpe:/o:siemens:siprotec_5_7ut82_%28cp150%29_firmware, cpe:/o:siemens:siprotec_5_7sy82_%28cp150%29_firmware, cpe:/o:siemens:siprotec_5_7sl86_%28cp300%29_firmware, cpe:/o:siemens:siprotec_5_7sj85_%28cp200%29_firmware, cpe:/o:siemens:siprotec_5_6md85_%28cp300%29_firmware, cpe:/o:siemens:siprotec_5_7sx82_%28cp150%29_firmware, cpe:/o:siemens:siprotec_5_7sd87_%28cp200%29_firmware, cpe:/o:siemens:siprotec_5_7sj86_%28cp300%29_firmware, cpe:/o:siemens:siprotec_5_7sa82_%28cp150%29_firmware, cpe:/o:siemens:siprotec_5_6md84_%28cp300%29_firmware, cpe:/o:siemens:siprotec_5_7sk82_%28cp100%29_firmware, cpe:/o:siemens:siprotec_5_7ut86_%28cp200%29_firmware, cpe:/o:siemens:siprotec_5_7ut82_%28cp100%29_firmware, cpe:/o:siemens:siprotec_5_7st85_%28cp200%29_firmware, cpe:/o:siemens:siprotec_5_7ve85_%28cp300%29_firmware, cpe:/o:siemens:siprotec_5_7sd87_%28cp300%29_firmware, cpe:/o:siemens:siprotec_5_7sl82_%28cp150%29_firmware, cpe:/o:siemens:siprotec_5_6md86_%28cp200%29_firmware, cpe:/o:siemens:siprotec_5_7sa82_%28cp100%29_firmware, cpe:/o:siemens:siprotec_5_7ut87_%28cp200%29_firmware, cpe:/o:siemens:siprotec_5_7sa87_%28cp300%29_firmware, cpe:/o:siemens:siprotec_5_7st86_%28cp300%29_firmware, cpe:/o:siemens:siprotec_5_7sj81_%28cp150%29_firmware, cpe:/o:siemens:siprotec_5_7st85_%28cp300%29_firmware, cpe:/o:siemens:siprotec_5_7ut86_%28cp300%29_firmware, cpe:/o:siemens:siprotec_5_7sd82_%28cp150%29_firmware, cpe:/o:siemens:siprotec_5_7sj82_%28cp100%29_firmware, cpe:/o:siemens:siprotec_5_7ke85_%28cp200%29_firmware, cpe:/o:siemens:siprotec_5_7sl82_%28cp100%29_firmware, cpe:/o:siemens:siprotec_5_7sx85_%28cp300%29_firmware, cpe:/o:siemens:siprotec_5_7sj81_%28cp100%29_firmware, cpe:/o:siemens:siprotec_5_7sj86_%28cp200%29_firmware, cpe:/o:siemens:siprotec_5_7ss85_%28cp200%29_firmware

Required KB Items: Tenable.ot/Siemens

Exploit Ease: No known exploits are available

Patch Publication Date: 6/9/2026

Vulnerability Publication Date: 6/9/2026

Reference Information

CVE: CVE-2025-40808

CWE: 434

Detections

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