Improper Certificate Validation in Siemens products - CVE-2025-40800

Vulnerability identifier: #VU119811

CSH Severity: High

CVSS v4: 9.1 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2025-40800

CWE-ID: CWE-295

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to improper certificate validation in the IAM client. A remote attacker can perform a man-in-the-middle (MitM) attack.

Siemens COMOS
Solid Edge
NX V2412
NX V2506
Simcenter 3D
Simcenter Femap

Install updates from vendor's website.

Solid Edge - addressed in versions 225.0 Update 10, 226.0 Update 1
NX V2412 - update to 2412.8700
Simcenter Femap - update to 2506.0002
NX V2506 - update to 2506.6000
Simcenter 3D - update to 2506.6000

• https://cert-portal.siemens.com/productcert/html/ssa-868571.html

• Improper Certificate Validation in Siemens IAM Client