CVE-2020-15782

9.8 CRITICAL
Published: May 28, 2021 Modified: June 02, 2026
View on NVD

Description

A vulnerability has been identified in SIMATIC Drive Controller family (All versions < V2.9.2), SIMATIC ET 200SP Open Controller CPU 1515SP PC (incl. SIPLUS variants) (All versions), SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) (All versions < V21.9), SIMATIC S7-1200 CPU family (incl. SIPLUS variants) (All versions < V4.5.0), SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions < V2.9.2), SIMATIC S7-1500 Software Controller (All versions < V21.9), SIMATIC S7-PLCSIM Advanced (All versions < V4.0), SINAMICS PERFECT HARMONY GH180 Drives (Drives manufactured before 2021-08-13), SINUMERIK MC (All versions < V6.15), SINUMERIK ONE (All versions < V6.15). Affected devices are vulnerable to a memory protection bypass through a specific operation. A remote unauthenticated attacker with network access to port 102/tcp could potentially write arbitrary data and code to protected memory areas or read sensitive data to launch further attacks.

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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:H/I:H/A:H

References to Advisories, Solutions, and Tools

Patch Vendor Advisory Exploit Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-434534.pdf
Source: productcert@siemens.com
Patch Vendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-434534.pdf
Source: af854a3a-2127-422b-91ae-364da2661108
Patch Vendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-434535.pdf
Source: af854a3a-2127-422b-91ae-364da2661108
https://cert-portal.siemens.com/productcert/pdf/ssa-434536.pdf
Source: af854a3a-2127-422b-91ae-364da2661108

6 reference(s) from NVD

Quick Stats

CVSS v3 Score
9.8 / 10.0
EPSS (Exploit Probability)
5.2%
91th percentile
Exploitation Status
Not in CISA KEV

Weaknesses (CWE)

Affected Vendors

siemens