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CVE PROGRAM SOURCE RECORD7.5 High

CVE-2021-33541

Phoenix Contact: ILC1x Industrial controllers affected by Denial-of-Service vulnerability

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Status
Published
Published
Updated
Assigning organization
CERTVDE

Description

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Phoenix Contact ILC1x

  • ILC1x0 all variantsaffected
  • ILC1x1 all variantsaffected

References