Riskcovery

CVE-2020-15783

State
Published
Severity
7.5 High
Published
Nov 12, 2020
Updated
Jun 2, 2026
Reserved
Jul 15, 2020

Read the record on cve.org

Description

A vulnerability has been identified in SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions), SIMATIC TDC CPU555 (All versions), SINUMERIK 840D sl (All versions). Sending multiple specially crafted packets to the affected devices could cause a Denial-of-Service on port 102. A cold restart is required to recover the service.

Scores

CVSSScoreVectorSource
3.17.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HCISA-ADP

Weaknesses

  • CWE-400 Uncontrolled Resource Consumption

Affected Products

ProductVersions
SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants)Siemens
  • All versionsAffected
SIMATIC TDC CPU555Siemens
  • All versionsAffected
SINUMERIK 840D slSiemens
  • All versionsAffected

References

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