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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Siemens | SINUMERIK 828D PPU.4 | < V4.95 SP5 | V4.95 SP5 |
| Siemens | SINUMERIK 828D PPU.5 | < V5.25 SP1 | V5.25 SP1 |
| Siemens | SINUMERIK 840D sl | < V4.95 SP5 | V4.95 SP5 |
| Siemens | SINUMERIK MC | < V1.25 SP1 | V1.25 SP1 |
| Siemens | SINUMERIK MC V1.15 | < V1.15 SP5 | V1.15 SP5 |
| Siemens | SINUMERIK ONE | < V6.25 SP1 | V6.25 SP1 |
| Siemens | SINUMERIK ONE V6.15 | < V6.15 SP5 | V6.15 SP5 |
Advisories 3
- NCSC-2025-0246 Kwetsbaarheden verholpen in Siemens producten NCSC-NL (Netherlands) · Aug 12, 2025
- ICSA-25-226-19 Siemens SINUMERIK CISA ICS & IT advisories · Aug 12, 2025
- SSA-177847 SSA-177847: Improper VNC Password Check Vulnerability in SINUMERIK Controllers Siemens ProductCERT · Aug 12, 2025