CVE-2020-15796

HIGH

SIMATIC ET 200SP Open Controller - DoS

Title source: llm

Description

A vulnerability has been identified in SIMATIC ET 200SP Open Controller (incl. SIPLUS variants) (V20.8), SIMATIC S7-1500 Software Controller (V20.8). The web server of the affected products contains a vulnerability that could allow a remote attacker to trigger a denial-of-service condition by sending a specially crafted HTTP request.

References (1)

[Vendor Advisory] https://cert-portal.siemens.com/productcert/pdf/ssa-700697.pdf

Scores

CVSS v3 7.5

EPSS 0.0117

EPSS Percentile 78.4%

Attack Vector NETWORK

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

Classification

CWE

CWE-248

Status published

Affected Products (2)

siemens/simatic_et_200sp_open_controller_firmware < 20.8

siemens/simatic_s7-1500_software_controller_firmware < 20.8

Timeline

Published Dec 14, 2020

Tracked Since Feb 18, 2026