CVE-2020-15783

HighCVSS 7.5/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

CWE-400

Affected software

No affected versions have been published.

Timeline

Published
Nov 12, 2020
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2020-15783: High severity, CVSS 7.5 | Vulnix