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CVE-2020-15782

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 200...

Published: May 28, 2021Updated: Jun 2, 2026 Sources: CVE List NVD BDU csafCWE-119
9.8CRITICAL
NVD MITRE
EPSS Score
5.2%
Top 8.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not available

Description

SINUMERIK ONE and SINUMERIK MC products are affected by a memory protection bypass vulnerability in the integrated S7-1500 CPU that could allow an attacker to write arbitrary data and code to protected memory areas or read sensitive data to launch further attacks on the CPU. Siemens has released updates for the affected products and recommends that customers update to the new version.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-119

Affected Products

Siemens AG
commercial·DEaka Siemens
SIMATIC Drive Controller family
ICS / OT / IoT
SIMATIC ET 200SP Open Controller CPU 1515SP PC (incl. SIPLUS variants)
ICS / OT / IoT
SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants)
ICS / OT / IoT
SIMATIC S7-1200 CPU family (incl. SIPLUS variants)
ICS / OT / IoT
SIMATIC S7-1500 CPU family (incl. related ET200 CPUs and SIPLUS variants)
ICS / OT / IoT
SIMATIC S7-1500 Software Controller
ICS / OT / IoT
SIMATIC S7-PLCSIM Advanced
ICS / OT / IoT
SINAMICS PERFECT HARMONY GH180 Drives
ICS / OT / IoT
and 18 more affected products View all →

Exploitability

Official Patch Available
Is your org exposed to CVE-2020-15782?We can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://cert-portal.siemens.com/productcert/csaf/ssa-434536.json
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/txt/ssa-434536.txt
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/pdf/ssa-434536.pdf
cert-portal.siemens.com
and 13 more references View all →

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