high7.5
CVE-2020-25241
A vulnerability has been identified in SIMATIC MV400 family (All Versions < V7.0.6).
Impact
A vulnerability has been identified in SIMATIC MV400 family (All Versions < V7.0.6). The underlying TCP stack of the affected products does not correctly validate the sequence number for incoming TCP RST packages. An attacker could exploit this to terminate arbitrary TCP sessions.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Siemens | Simatic Mv440 Sr Firmware | before 7.0.6 |
| Siemens | Simatic Mv440 Hr Firmware | before 7.0.6 |
| Siemens | Simatic Mv440 Ur Firmware | before 7.0.6 |
| Siemens | Simatic Mv420 Sr-B Firmware | before 7.0.6 |
| Siemens | Simatic Mv420 Sr-P Firmware | before 7.0.6 |
| Siemens | Simatic Mv420 Sr-B Body Firmware | before 7.0.6 |
| Siemens | Simatic Mv420 Sr-P Body Firmware | before 7.0.6 |