CVE-2019-18336
- State
- Published
- Severity
- 7.5 High
- Published
- Mar 10, 2020
- Updated
- Jun 2, 2026
- Reserved
- Oct 23, 2019
Description
A vulnerability has been identified in SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions < V3.X.17), SIMATIC TDC CP51M1 (All versions < V1.1.8), SIMATIC TDC CPU555 (All versions < V1.1.1), SINUMERIK 840D sl (All versions < V4.8.6), SINUMERIK 840D sl (All versions < V4.94). Specially crafted packets sent to port 102/tcp (Profinet) could cause the affected device to go into defect mode. A restart is required in order to recover the system. Successful exploitation requires an attacker to have network access to port 102/tcp, with no authentication. No user interation is required. At the time of advisory publication no public exploitation of this security vulnerability was known.
Scores
| CVSS | Score | Vector | Source |
|---|---|---|---|
| 3.1 | 7.5 High | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | CISA-ADP |
Weaknesses
- CWE-400 Uncontrolled Resource Consumption
Affected Products
| Product | Versions |
|---|---|
SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants)Siemens AG |
|
SIMATIC TDC CP51M1Siemens AG |
|
SIMATIC TDC CPU555Siemens AG |
|
SINUMERIK 840D slSiemens AG |
|
SINUMERIK 840D slSiemens AG |
|
References
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