CVE-2020-12521

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
6.5 MEDIUM
ADJACENT_NETWORK
LOW
NONE
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CERTVDECNA
6.5 MEDIUM
ADJACENT_NETWORK
LOW
NONE
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 25%
VendorProductVersion
phoenixcontactplcnext_firmware
𝑥
< 2021.0
phoenixcontactplcnext_firmware
𝑥
< 2021.0
phoenixcontactplcnext_firmware
𝑥
< 2021.0
phoenixcontactplcnext_firmware
𝑥
< 2021.0
phoenixcontactplcnext_firmware
𝑥
< 2021.0
phoenixcontactplcnext_firmware
𝑥
< 2021.0
𝑥
= Vulnerable software versions
Common Weakness Enumeration
References
https://cert.vde.com/en-us/advisories/vde-2020-049
https://cert.vde.com/en-us/advisories/vde-2020-049