CVE-2025-40795

CRITICAL

SIMATIC PCS neo and User Management Component < 2.15.1.3 - Unauthenticated Stack-based Buffer Overflow

Title source: llm
STIX 2.1

Description

A vulnerability has been identified in SIMATIC PCS neo V4.1 (All versions), SIMATIC PCS neo V5.0 (All versions), SIMATIC PCS neo V6.0 (All versions), User Management Component (UMC) (All versions < V2.15.1.3). Affected products contain a stack-based buffer overflow vulnerability in the integrated UMC component. This could allow an unauthenticated remote attacker to execute arbitrary code or to cause a denial of service condition.

References (1)

Core 1

Scores

CVSS v3 9.8
EPSS 0.0029
EPSS Percentile 52.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-121
Status published
Products (3)
siemens/simatic_pcs_neo 4.1
siemens/simatic_pcs_neo 5.0
siemens/user_management_component < 2.15.1.3
Published Sep 09, 2025
Tracked Since Feb 18, 2026