Uncontrolled resource consumption in Siemens SIMATIC ET 200SP Open Controller
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-400.
Summary
A vulnerability has been identified in SIMATIC ET 200SP Open Controller (All versions >= V2.0 and < V2.1.6), SIMATIC S7-1500 Software Controller (All versions >= V2.0 and < V2.5), SIMATIC S7-1500 incl. F (All versions >= V2.0 and < V2.5). An attacker can cause a denial-of-service condition on the network stack by sending a large number of specially crafted packets to the PLC. The PLC will lose its ability to communicate over the network. This vulnerability could be exploited by an attacker with network access to the affected systems. Successful exploitation requires no privileges and no user interaction. An attacker could use this vulnerability to compromise availability of the network connectivity. At the time of advisory publication no public exploitation of this vulnerability was known.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Siemens | SIMATIC ET 200SP Open Controller | All versions >= V2.0 and < V2.1.6 | — | No fix listed | CNA |
| Siemens | SIMATIC S7-1500 Software Controller | All versions >= V2.0 and < V2.5 | — | No fix listed | CNA |
| Siemens | SIMATIC S7-1500 incl. F | All versions >= V2.0 and < V2.5 | — | No fix listed | CNA |
- SIMATIC ET 200SP Open Controller VendorSiemens Affected All versions >= V2.0 and < V2.1.6 Fixed in — No fix listed CNA
- SIMATIC S7-1500 Software Controller VendorSiemens Affected All versions >= V2.0 and < V2.5 Fixed in — No fix listed CNA
- SIMATIC S7-1500 incl. F VendorSiemens Affected All versions >= V2.0 and < V2.5 Fixed in — No fix listed CNA
CPE configurations NVD · 6
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:siemens:simatic_et_200sp_firmware:*:*:*:*:*:*:*:* | 2.0 | Vulnerable | Siemens |
| cpe:2.3:h:siemens:simatic_et_200sp:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Siemens |
| cpe:2.3:o:siemens:simatic_s7-1500_firmware:*:*:*:*:*:*:*:* | 2.0 to before 2.5 | Vulnerable | Siemens |
| cpe:2.3:h:siemens:simatic_s7-1500:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Siemens |
| cpe:2.3:o:siemens:simatic_s7-1500f_firmware:*:*:*:*:*:*:*:* | 2.0 to before 2.5 | Vulnerable | Siemens |
| cpe:2.3:h:siemens:simatic_s7-1500f:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Siemens |
- cpe:2.3:o:siemens:simatic_et_200sp_firmware:*:*:*:*:*:*:*:* Versions 2.0 Vulnerable ·Siemens
- cpe:2.3:h:siemens:simatic_et_200sp:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens
- cpe:2.3:o:siemens:simatic_s7-1500_firmware:*:*:*:*:*:*:*:* Versions 2.0 to before 2.5 Vulnerable ·Siemens
- cpe:2.3:h:siemens:simatic_s7-1500:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens
- cpe:2.3:o:siemens:simatic_s7-1500f_firmware:*:*:*:*:*:*:*:* Versions 2.0 to before 2.5 Vulnerable ·Siemens
- cpe:2.3:h:siemens:simatic_s7-1500f:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Siemens
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2018-13805
- 2026-10-03 Alias added: GHSA-mxvx-9h7h-6vxh
References
More Siemens Simatic Et 200sp Firmware vulnerabilities
- TI-2017-09446 Uncontrolled resource consumption in Siemens Development/Evaluation Kits for PROFINET IO… CVSS 4.0HIGH 8.7
- TI-2017-01922 Uncontrolled resource consumption in Siemens Development/Evaluation Kits for PROFINET IO… CVSS 4.0HIGH 7.1
- TI-2017-01923 Uncontrolled resource consumption in Siemens Development/Evaluation Kits for PROFINET IO… CVSS 4.0HIGH 7.1
Sources
- CVE-2018-13805 · CVE Program
- CVE-2018-13805 · NVD
- FIRST EPSS
- GHSA-mxvx-9h7h-6vxh · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences