Description
A vulnerability has been identified in SIMATIC NET CP 343-1 Advanced (incl. SIPLUS variants) (All versions), SIMATIC NET CP 343-1 Lean (incl. SIPLUS variants) (All versions), SIMATIC NET CP 343-1 Standard (incl. SIPLUS variants) (All versions). Specially crafted packets sent to TCP port 102 could cause a Denial-of-Service condition on the affected devices. A cold restart might be necessary in order to recover.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Siemens | SIMATIC NET CP 343-1 Advanced (incl. SIPLUS variants) | All versions | — |
| Siemens | SIMATIC NET CP 343-1 Lean (incl. SIPLUS variants) | All versions | — |
| Siemens | SIMATIC NET CP 343-1 Standard (incl. SIPLUS variants) | All versions | — |
Advisories 2
- ICSA-21-131-07 Siemens SIMATIC NET CP343-1 CISA ICS & IT advisories · May 6, 2025
- SSA-676775 SSA-676775: Denial-of-Service Vulnerability in SIMATIC NET CP 343-1 Devices Siemens ProductCERT · May 11, 2021