CVE-2020-12521: medium-severity vulnerability in Phoenix Contact AXC F 1152 (1151412)
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.
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.5epss 0.5%
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 (1051328Related CVEs — Phoenix Contact AXC F 1152 (1151412)
In the same product, most dangerous first.
CVE-2020-12517HIGHPhoenix Contact PLCnext Control Devices versions before 2021.0 LTS: An authenticated low privileged user could embed malicious Javascript code to gain admin rights when the admin user visits the vulnerable website (local privilege escalation).EPSS 1.1%CVE-2020-12519HIGHPhoenix Contact PLCnext Control Devices versions before 2021.0 LTS: An attacker can use this vulnerability i.e. to open a reverse shell with root privileges.EPSS 0.9%CVE-2020-12518MEDIUMPhoenix Contact PLCnext Control Devices versions before 2021.0 LTS: An attacker can use the knowledge gained by reading the insufficiently protected sensitive information to plan further attacks.EPSS 0.7%