On Phoenix Contact PLCnext Control Devices versions before 2021.0 LTS a specially crafted LLDP packet may lead to a high system load in the PROFINET stack. An attacker can cause failure of system services or a complete reboot.
This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 6.5, indicating it requires adjacent network access with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts and availability (service disruption) for affected systems. Impacting 7 products from phoenixcontact, from phoenixcontact, from phoenixcontact and 4 others, organizations running these solutions should prioritize assessment and patching.
Reported in 2020, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.
2020-12-17T23:15:13.137
2024-11-21T04:59:51.477
Modified
CVSSv3.1: 6.5 (MEDIUM)
AV:A/AC:L/Au:N/C:N/I:N/A:C
6.5
6.9
| Type | Vendor | Product | Version/Range | Vulnerable? |
|---|---|---|---|---|
| Operating System | phoenixcontact | plcnext_firmware | < 2021.0 | Yes |
| Hardware | phoenixcontact | axc_f_1152 | - | No |
| Operating System | phoenixcontact | plcnext_firmware | < 2021.0 | Yes |
| Hardware | phoenixcontact | axc_f_2152 | - | No |
| Operating System | phoenixcontact | plcnext_firmware | < 2021.0 | Yes |
| Hardware | phoenixcontact | axc_f_3152 | - | No |
| Operating System | phoenixcontact | plcnext_firmware | < 2021.0 | Yes |
| Hardware | phoenixcontact | rfc_4072s | - | No |
| Operating System | phoenixcontact | plcnext_firmware | < 2021.0 | Yes |
| Hardware | phoenixcontact | axc_f_2152_starterkit | - | No |
| Operating System | phoenixcontact | plcnext_firmware | < 2021.0 | Yes |
| Hardware | phoenixcontact | plcnext_technology_starterkit | - | 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 phoenixcontact'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.