#VU115170 Out-of-bounds read in SIMATIC PCS neo and User Management Component (UMC) - CVE-2025-40796

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Main Vulnerability Database Vulnerabilities #VU115170

#VU115170 Out-of-bounds read in SIMATIC PCS neo and User Management Component (UMC) - CVE-2025-40796

Published: September 12, 2025


Vulnerability identifier: #VU115170
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2025-40796
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
SIMATIC PCS neo
User Management Component (UMC)
Software vendor:
Siemens

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary condition in the integrated UMC component. A remote attacker can trigger an out-of-bounds read error and cause a denial of service condition on the system.


Remediation

Install update from vendor's website.

External links