CVE-2025-40743

A vulnerability has been identified in SINUMERIK 828D PPU.4 (All versions < V4.95 SP5), SINUMERIK 828D PPU.5 (All versions < V5.25 SP1), SINUMERIK 840D sl (All versions < V4.95 SP5), SINUMERIK MC (All versions < V1.25 SP1), SINUMERIK MC V1.15 (All versions < V1.15 SP5), SINUMERIK ONE (All versions < V6.25 SP1), SINUMERIK ONE V6.15 (All versions < V6.15 SP5). The affected application improperly validates authentication for its VNC access service, allowing access with insufficient password verification. This could allow an attacker to gain unauthorized remote access and potentially compromise system confidentiality, integrity, or availability.

CVSS v3 8.3 HIGH

8.3^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.5

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact LOW

Scope UNCHANGED

References

Link	Resource
https://cert-portal.siemens.com/productcert/html/ssa-177847.html

Configurations

No configuration.

History

15 Apr 2026, 00:35

Type	Values Removed	Values Added
Summary		(es) Se ha identificado una vulnerabilidad en SINUMERIK 828D PPU.4 (todas las versiones anteriores a V4.95 SP5), SINUMERIK 828D PPU.5 (todas las versiones anteriores a V5.25 SP1), SINUMERIK 840D sl (todas las versiones anteriores a V4.95 SP5), SINUMERIK MC (todas las versiones anteriores a V1.25 SP1), SINUMERIK MC V1.15 (todas las versiones anteriores a V1.15 SP5), SINUMERIK ONE (todas las versiones anteriores a V6.25 SP1) y SINUMERIK ONE V6.15 (todas las versiones anteriores a V6.15 SP5). La aplicación afectada valida incorrectamente la autenticación para su servicio de acceso VNC, lo que permite el acceso sin verificación de contraseña suficiente. Esto podría permitir que un atacante obtenga acceso remoto no autorizado y potencialmente comprometer la confidencialidad, integridad o disponibilidad del sistema.

12 Aug 2025, 12:15

Type	Values Removed	Values Added
New CVE

Information

Published : 2025-08-12 12:15

Updated : 2026-04-15 00:35

NVD link : CVE-2025-40743

Mitre link : CVE-2025-40743

CVE.ORG link : CVE-2025-40743

JSON object : View

Products Affected

No product.

CWE

CWE-288

Authentication Bypass Using an Alternate Path or Channel

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