Phoenixcontact Plcnext Firmware vulnerabilities

4 CVEs affecting Phoenixcontact Plcnext Firmware, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2020-12521, published 2020-12-17.

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Known exploited (CISA KEV) first, then by EPSS exploit probability.

• CVE-2020-12517, published 2020-12-17. Critical severity, CVSS 9.0. EPSS: 1.1% chance of exploitation in the next 30 days. On Phoenix 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…
• CVE-2020-12519, published 2020-12-17. Critical severity, CVSS 9.8. EPSS: 0.9% chance of exploitation in the next 30 days. On Phoenix 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.
• CVE-2020-12518, published 2020-12-17. Medium severity, CVSS 5.5. EPSS: 0.7% chance of exploitation in the next 30 days. On Phoenix 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.
• CVE-2020-12521, published 2020-12-17. Medium severity, CVSS 6.5. EPSS: 0.5% chance of exploitation in the next 30 days. 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…