CVE-2025-40946: Siemens Blueplanet 100 NX3 m8

High severity, CVSS 8.3. EPSS: 0.2% chance of exploitation in the next 30 days.

A vulnerability has been identified in blueplanet 100 NX3 M8 (All versions), blueplanet 100 TL3 GEN2 (All versions < V6.1.4.9), blueplanet 105 TL3 (All versions), blueplanet 105 TL3 GEN2 (All versions < V6.1.4.9), blueplanet 110 TL3 (All versions), blueplanet 125 NX3 M10 (All versions), blueplanet 125 TL3 (All versions), blueplanet 125 TL3 GEN2 (All versions < V6.1.4.9), blueplanet 137 TL3 (All versions), blueplanet 150 TL3 (All versions), blueplanet 150 TL3 GEN2 (All versions < V6.1.4.9), blueplanet 155 TL3 (All versions), blueplanet 155 TL3 GEN2 (All versions < V6.1.4.9), blueplanet 165 TL3 (All versions), blueplanet 165 TL3 GEN2 (All versions < V6.1.4.9), blueplanet 25.0 NX3-33.0 NX3 (All versions), blueplanet 3.0 NX3-20.0 NX3 (All versions), blueplanet 3.0 TL3-60.0 TL3 (All versions), blueplanet 3.0-5.0 NX1 (All versions), blueplanet 360 NX3 M6 (All versions), blueplanet 50.0 NX3-60.0 NX3 (All versions), blueplanet 87.0 TL3 (All versions), blueplanet 87.0 TL3 GEN2 (All versions < V6.1.4.9), blueplanet 92.0 TL3 (All versions), blueplanet 92.0 TL3 GEN2 (All versions < V6.1.4.9), blueplanet gridsave 110 TL3-S (All versions < V3.91), blueplanet gridsave 137 TL3-S (All versions < V3.91), blueplanet gridsave 92.0 TL3-S (All versions < V3.91), blueplanet hybrid 10.0 TL3 (All versions), blueplanet hybrid 6.0 NH3-12.0 NH3 (All versions). A CRC16-based algorithm for generating Technical Service credentials could allow an attacker to derive the credentials from the devices serial number and misuse them to gain unauthorized access.

Affected products

  • Siemens Blueplanet 100 NX3 m8: any version
  • Siemens Blueplanet 100 TL3 GEN2: before V6.1.4.9 (fixed in V6.1.4.9)
  • Siemens Blueplanet 105 TL3: any version
  • Siemens Blueplanet 105 TL3 GEN2: before V6.1.4.9 (fixed in V6.1.4.9)
  • Siemens Blueplanet 110 TL3: any version
  • Siemens Blueplanet 125 NX3 m10: any version
  • Siemens Blueplanet 125 TL3: any version
  • Siemens Blueplanet 125 TL3 GEN2: before V6.1.4.9 (fixed in V6.1.4.9)
  • Siemens Blueplanet 137 TL3: any version
  • Siemens Blueplanet 150 TL3: any version
  • Siemens Blueplanet 150 TL3 GEN2: before V6.1.4.9 (fixed in V6.1.4.9)
  • Siemens Blueplanet 155 TL3: any version
  • Siemens Blueplanet 155 TL3 GEN2: before V6.1.4.9 (fixed in V6.1.4.9)
  • Siemens Blueplanet 165 TL3: any version
  • Siemens Blueplanet 165 TL3 GEN2: before V6.1.4.9 (fixed in V6.1.4.9)
  • Siemens Blueplanet 25.0 NX3-33.0 NX3
  • Siemens Blueplanet 3.0-5.0 NX1
  • Siemens Blueplanet 3.0 NX3-20.0 NX3
  • Siemens Blueplanet 3.0 TL3-60.0 TL3: any version
  • Siemens Blueplanet 360 NX3 m6
  • Siemens Blueplanet 50.0 NX3-60.0 NX3
  • Siemens Blueplanet 87.0 TL3: any version
  • Siemens Blueplanet 87.0 TL3 GEN2: before V6.1.4.9 (fixed in V6.1.4.9)
  • Siemens Blueplanet 92.0 TL3: any version
  • Siemens Blueplanet 92.0 TL3 GEN2: before V6.1.4.9 (fixed in V6.1.4.9)
  • and 5 more

Published 2026-05-12. Last modified 2026-06-17.