CVE-2021-33541 — Phoenix Contact: ILC1x Industrial controllers affected by Denial-of-Service vulnerability
Phoenix Contact Classic Line Controllers ILC1x0 and ILC1x1 in all versions/variants are affected by a Denial-of-Service vulnerability. The communication protocols and device acc…
Published: 2021-06-25 · CVSS: 7.5 · CVSS 3.1
Phoenix Contact Classic Line Controllers ILC1x0 and ILC1x1 in all versions/variants are affected by a Denial-of-Service vulnerability. The communication protocols and device access do not feature authentication measures. Remote attackers can use specially crafted IP packets to cause a denial of service on the PLC's network communication module. A successful attack stops all network communication. To restore the network connectivity the device needs to be restarted. The automation task is not affected.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7