CVE-2020-12521
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.
Severity Score
6.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
0
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
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.
En Phoenix Contact PLCnext Control Devices versiones anteriores a 2021.0 LTS, un paquete LLDP especialmente diseñado puede conllevar a una alta carga del sistema en la pila PROFINET. Un atacante puede causar un fallo en los servicios del sistema o un reinicio completo
*Credits:
Phoenix Contact reported to CERT@VDE
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2020-04-30 CVE Reserved
- 2020-12-17 CVE Published
- 2023-09-02 EPSS Updated
- 2024-09-17 CVE Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-20: Improper Input Validation
CAPEC
References (1)
| URL | Tag | Source |
|---|---|---|
| https://cert.vde.com/en-us/advisories/vde-2020-049 | Third Party Advisory |
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
| URL | Date | SRC |
|---|
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Phoenixcontact Search vendor "Phoenixcontact" | Plcnext Firmware Search vendor "Phoenixcontact" for product "Plcnext Firmware" | < 2021.0 Search vendor "Phoenixcontact" for product "Plcnext Firmware" and version " < 2021.0" | long_term_support |
Affected
| in | Phoenixcontact Search vendor "Phoenixcontact" | Axc F 1152 Search vendor "Phoenixcontact" for product "Axc F 1152" | - | - |
Safe
|
| Phoenixcontact Search vendor "Phoenixcontact" | Plcnext Firmware Search vendor "Phoenixcontact" for product "Plcnext Firmware" | < 2021.0 Search vendor "Phoenixcontact" for product "Plcnext Firmware" and version " < 2021.0" | long_term_support |
Affected
| in | Phoenixcontact Search vendor "Phoenixcontact" | Axc F 2152 Search vendor "Phoenixcontact" for product "Axc F 2152" | - | - |
Safe
|
| Phoenixcontact Search vendor "Phoenixcontact" | Plcnext Firmware Search vendor "Phoenixcontact" for product "Plcnext Firmware" | < 2021.0 Search vendor "Phoenixcontact" for product "Plcnext Firmware" and version " < 2021.0" | long_term_support |
Affected
| in | Phoenixcontact Search vendor "Phoenixcontact" | Axc F 3152 Search vendor "Phoenixcontact" for product "Axc F 3152" | - | - |
Safe
|
| Phoenixcontact Search vendor "Phoenixcontact" | Plcnext Firmware Search vendor "Phoenixcontact" for product "Plcnext Firmware" | < 2021.0 Search vendor "Phoenixcontact" for product "Plcnext Firmware" and version " < 2021.0" | long_term_support |
Affected
| in | Phoenixcontact Search vendor "Phoenixcontact" | Rfc 4072s Search vendor "Phoenixcontact" for product "Rfc 4072s" | - | - |
Safe
|
| Phoenixcontact Search vendor "Phoenixcontact" | Plcnext Firmware Search vendor "Phoenixcontact" for product "Plcnext Firmware" | < 2021.0 Search vendor "Phoenixcontact" for product "Plcnext Firmware" and version " < 2021.0" | long_term_support |
Affected
| in | Phoenixcontact Search vendor "Phoenixcontact" | Axc F 2152 Starterkit Search vendor "Phoenixcontact" for product "Axc F 2152 Starterkit" | - | - |
Safe
|
| Phoenixcontact Search vendor "Phoenixcontact" | Plcnext Firmware Search vendor "Phoenixcontact" for product "Plcnext Firmware" | < 2021.0 Search vendor "Phoenixcontact" for product "Plcnext Firmware" and version " < 2021.0" | long_term_support |
Affected
| in | Phoenixcontact Search vendor "Phoenixcontact" | Plcnext Technology Starterkit Search vendor "Phoenixcontact" for product "Plcnext Technology Starterkit" | - | - |
Safe
|