An Improper Authentication issue was discovered in WAGO PFC200 Series 3S CoDeSys Runtime versions 2.3.X and 2.4.X. An attacker can execute different unauthenticated remote operations because of the CoDeSys Runtime application, which is available via network by default on Port 2455. An attacker could execute some unauthenticated commands such as reading, writing, or deleting arbitrary files, or manipulate the PLC application during runtime by sending specially-crafted TCP packets to Port 2455.
This vulnerability carries a CRITICAL severity rating with a CVSS v3.1 score of 9.8, 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 confidentiality (data exposure), integrity (unauthorized modifications), and availability (service disruption) for affected systems. Impacting 19 products from wago, from wago, from wago and 16 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.
2018-02-13T21:29:00.207
2024-11-21T04:08:50.547
Modified
CVSSv3.0: 9.8 (CRITICAL)
AV:N/AC:L/Au:N/C:P/I:P/A:P
10.0
6.4
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | wago | pfc200_firmware | < 02.07.07\(10\) | Yes |
| Hardware | wago | 750-8202 | - | No |
| Hardware | wago | 750-8202\/025-000 | - | No |
| Hardware | wago | 750-8202\/025-001 | - | No |
| Hardware | wago | 750-8202\/025-002 | - | No |
| Hardware | wago | 750-8202\/040-001 | - | No |
| Hardware | wago | 750-8203 | - | No |
| Hardware | wago | 750-8203\/025-000 | - | No |
| Hardware | wago | 750-8204 | - | No |
| Hardware | wago | 750-8204\/025-000 | - | No |
| Hardware | wago | 750-8206 | - | No |
| Hardware | wago | 750-8206\/025-000 | - | No |
| Hardware | wago | 750-8206\/025-001 | - | No |
| Hardware | wago | 750-8207 | - | No |
| Hardware | wago | 750-8207\/025-000 | - | No |
| Hardware | wago | 750-8207\/025-001 | - | No |
| Hardware | wago | 750-8208 | - | No |
| Hardware | wago | 750-8208\/025-000 | - | No |
| Hardware | wago | pfc200 | - | 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.