Wago 750 Series PLCs with firmware version 10 and prior include a remote attack may take advantage of an improper implementation of the 3 way handshake during a TCP connection affecting the communications with commission and service tools. Specially crafted packets may also be sent to Port 2455/TCP/IP, used in Codesys management software, which may result in a denial-of-service condition of communications with commissioning and service tools.
This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 5.3, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts and limited availability for affected systems. Impacting 16 products from wago, from wago, from wago and 13 others, organizations running these solutions should prioritize assessment and patching.
First disclosed in 2018, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.
2018-04-03T13:29:00.277
2024-11-21T04:14:25.160
Modified
CVSSv3.0: 5.3 (MEDIUM)
AV:N/AC:L/Au:N/C:N/I:N/A:P
10.0
2.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | wago | 750-880_firmware | ≤ 10 | Yes |
| Hardware | wago | 750-880 | - | No |
| Operating System | wago | 750-881_firmware | ≤ 10 | Yes |
| Hardware | wago | 750-881 | - | No |
| Operating System | wago | 750-852_firmware | ≤ 10 | Yes |
| Hardware | wago | 750-852 | - | No |
| Operating System | wago | 750-882_firmware | ≤ 10 | Yes |
| Hardware | wago | 750-882 | - | No |
| Operating System | wago | 750-885_firmware | ≤ 10 | Yes |
| Hardware | wago | 750-885 | - | No |
| Operating System | wago | 750-831_firmware | ≤ 10 | Yes |
| Hardware | wago | 750-831 | - | No |
| Operating System | wago | 750-889_firmware | ≤ 10 | Yes |
| Hardware | wago | 750-889 | - | No |
| Operating System | wago | 750-829_firmware | ≤ 10 | Yes |
| Hardware | wago | 750-829 | - | No |
SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For wago's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.