CVE-2020-12521
Last modified
CVE-2020-12521 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. 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.. EPSS estimates a 0.45% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Phoenixcontact | Plcnext Firmware | < 2021.0 |
References
- https://cert.vde.com/en-us/advisories/vde-2020-049Third Party Advisory
- https://cert.vde.com/en-us/advisories/vde-2020-049Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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