#VU115169 Stack-based buffer overflow in SIMATIC PCS neo and User Management Component (UMC) - CVE-2025-40795
Published: September 12, 2025
Vulnerability identifier: #VU115169
Vulnerability risk: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2025-40795
CWE-ID: CWE-121
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
SIMATIC PCS neo
User Management Component (UMC)
SIMATIC PCS neo
User Management Component (UMC)
Software vendor:
Siemens
Siemens
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in the integrated UMC component. A remote unauthenticated attacker can trigger stack-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
Remediation
Install updates from vendor's website.