CVE-2025-40798: simatic pcs neo 4.1, 5.0; +5 more affected products

CVE-2025-40798. CVSS 3.1 base score 7.5 (HIGH, Vendor/CNA). EPSS 0.00515 (percentile 0.42583), scored 17-Oct-2026.

Affected technology

simatic pcs neo · 4.1
siemens

simatic pcs neo · 5.0
siemens

user management component · before 2.15.1.3 (exclusive)
siemens

SIMATIC PCS neo V4.1 · 0 to before *
Siemens

SIMATIC PCS neo V5.0 · 0 to before *
Siemens

SIMATIC PCS neo V6.0 · 0 to before V6.0 SP1 Update 1
Siemens

User Management Component (UMC) · 0 to before V2.15.1.3
Siemens

Description’s affected range: versions), SIMATIC PCS neo V5.0 (All versions), SIMATIC PCS neo V6.0 (All versions < V6.0 SP1 Update 1), User Management Component (UMC) (All versions < V

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 4.0): Network (remote) · No privileges required · No user interaction required

What an attacker can do

An unauthenticated remote attacker could cause a denial of service condition. Vendor/CNA’s CVSS 4.0 assessment (base score 8.7/10) rates confidentiality and integrity impact as none; availability impact as high.

Published 18-Oct-2026 22:52 UTC

CWE: CWE-125
CCR priority: 30.1 /100 (P4)
CVSS 3.1: 7.5 /10 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H · Vendor/CNA
EPSS: 0.00515 · percentile 0.42583 · 2026-10-17
KEV: no

Provenance

NVD CVE API 2.0 · Source record · observed 2026-10-18 22:50:08.248207+00:00 UTC

Stable permalink: https://cybercodered.org/item/cve-cve-2025-40798.html