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.

CVSS 6.5 MEDIUMEPSS 0.5%CWE-20

Vexday Risk Score

13Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 6.5EPSS 0.5%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

17 Dec 2020Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

Phoenix Contact · AXC F 1152 (1151412)Phoenix Contact · AXC F 2152 (2404267)Phoenix Contact · AXC F 2152 Starterkit (1046568)Phoenix Contact · AXC F 3152 (1069208)Phoenix Contact · PLCnext Technology Starterkit (1188165)Phoenix Contact · RFC 4072S (1051328

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References

https://cert.vde.com/en-us/advisories/vde-2020-049