Detections
Analytics

Siemens User Management Component Out-of-bounds Read DoS (CVE-2025-40797)

high Nessus Plugin ID 265964

Synopsis

An OT user management application is affected by a denial-of-service vulnerability.

Description

The Siemens User Management Component (UMC) running on the remote host is affected by a denial-of-service vulnerability. An unauthenticated, remote attacker could exploit this, via a specially crafted message, to terminate um.Ris.exe.

Solution

Apply mitigations in the vendor advisory.

See Also

https://cert-portal.siemens.com/productcert/html/ssa-722410.html

Plugin Details

Severity: High

ID: 265964

File Name: siemens_umc_cve-2025-40797.nbin

Version: 1.2

Type: remote

Family: SCADA

Published: 9/26/2025

Updated: 9/29/2025

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.8

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

CVSS Score Source: CVE-2025-40797

CVSS v3

Risk Factor: High

Base Score: 7.5

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

Vulnerability Information

CPE: cpe:/a:siemens:totally_integrated_automation_portal, cpe:/a:siemens:simatic_pcs_neo, cpe:/a:siemens:sinec_nms, cpe:/a:siemens:simatic_information_server, x-cpe:/a:siemens:user_management_component

Required KB Items: installed_sw/Siemens UMC RIS Server

Exploited by Nessus: true

Patch Publication Date: 9/9/2025

Vulnerability Publication Date: 9/9/2025

Reference Information

CVE: CVE-2025-40797