CVE-2020-15783

7.5 HIGH
Published: November 12, 2020 Modified: June 02, 2026
View on NVD

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.

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CVSS v3.x Details

0.0 Low Medium High Critical 10.0
Vector String
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-492828.pdf
Source: productcert@siemens.com
Mitigation Vendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-492828.pdf
Source: af854a3a-2127-422b-91ae-364da2661108
Mitigation Vendor Advisory

2 reference(s) from NVD

Quick Stats

CVSS v3 Score
7.5 / 10.0
EPSS (Exploit Probability)
1.6%
73th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

siemens