VULNERABILITY INTELLIGENCE

CVE-2020-15783

CVSS score7.5 HIGH
EPSS probability1.65%
CISA KEVNot currently listed
Published2020-11-12
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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.

Weakness classification

  • productcert@siemens.com: CWE-400
  • nvd@nist.gov: CWE-400

Primary references