CVE-2025-40743

HighCVSS 8.3/10Last modified Jun 17, 2026

Description

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.

Metrics

CVSS 3.1 8.3/10CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

Weakness enumeration

CWE-288

Affected software

No affected versions have been published.

Timeline

Published
Aug 12, 2025
Last modified
Jun 17, 2026
NVD status
Deferred

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CVE-2025-40743: High severity, CVSS 8.3 | Vulnix