PT-2025-36682 · Siemens · User Management+2

CVE-2025-40796 · Published 2025-09-09 · Updated 2025-09-09

Positive Technologies (AI Summary)

CVSS v4.0

8.7

High

Base vector

AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Name of the Vulnerable Software and Affected Versions: SIMATIC PCS neo versions 4.1 (All versions) SIMATIC PCS neo versions 5.0 (All versions) User Management Component (UMC) versions prior to 2.15.1.3

Description: The software contains an out-of-bounds read vulnerability in the integrated User Management Component (UMC). This could allow a remote attacker to cause a denial of service condition.

Recommendations: Update User Management Component (UMC) to version 2.15.1.3 or later.

Fix

DoS

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

BDU:2026-00029

CVE-2025-40796

Affected Products

Simatic Pcs Neo V4.1

Simatic Pcs Neo V5.0

User Management

References · 7

• https://cert-portal.siemens.com/productcert/html/ssa-722410.html · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-40796 · Security Note
• https://osv.dev/vulnerability/CVE-2025-40796 · Vendor Advisory
• https://bdu.fstec.ru/vul/2026-00029 · Security Note
• https://t.me/CVEtracker/32051 · Telegram Post
• https://twitter.com/VulmonFeeds/status/1965382124648747087 · Twitter Post
• https://twitter.com/CVEnew/status/1965338912412369094 · Twitter Post