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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
NVD MITRE
9.8CVSSCRITICAL
EPSS Score
5.2%
Top 8.6%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch 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.

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

SIMATIC Drive ControllerSiemens AG
On-prem
Enterprise Software / collaboration-groupware
SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants)Siemens AG
On-prem
Enterprise Software / collaboration-groupware
SIMATIC ET 200SP Open Controller CPU 1515SP PC (incl. SIPLUS variants)Siemens AG
On-prem
Enterprise Software / collaboration-groupware
SIMATIC S7-1200Siemens AG
On-prem
Enterprise Software / collaboration-groupware
SIMATIC S7-1500 CPU familySiemens AG
On-prem
Enterprise Software / collaboration-groupware
siemens agcommercialDEEnterprise Softwareaka siemens
and 21 more affected products View all →

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://cert-portal.siemens.com/productcert/pdf/ssa-434534.pdf&#13;
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/pdf/ssa-434535.pdf&#13;
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/pdf/ssa-434536.pdf
cert-portal.siemens.com
and 13 more references View all →

Timeline

Published
May 28, 2021
Last Updated
Jun 2, 2026

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