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CVE-2021-37205

A vulnerability has been identified in SIMATIC Drive Controller family (All versions >= V2.9.2 < V2.9.4), SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) (All versions >= V2...

Published: Feb 9, 2022Updated: Nov 21, 2024 Sources: CVE List NVD BDU csafCWE-401
NVD MITRE
7.5CVSSHIGH
EPSS Score
1.6%
Top 27.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Affected SIMATIC firmware contains three vulnerabilities that could allow an unauthenticated attacker to perform a denial of service attack under certain conditions. Siemens has released updates for several affected products and recommends to update to the latest versions. Siemens recommends countermeasures for products where updates are not, or not yet available.

CVSS Vector Breakdown

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

Weaknesses

CWE-401

Affected Products

SIMATIC S7-1500 Software ControllerSiemens AG
On-prem
ICS / OT / IoT / industrial-network
SIMATIC ET 200 SP Open Controller CPU 1515SP PC2Siemens AG
On-prem
Enterprise Software / collaboration-groupware
SIMATIC S7-PLCSIM AdvancedSiemens 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 58 more affected products View all →

Exploitability

Official Patch Available

References

https://cert-portal.siemens.com/productcert/pdf/ssa-838121.pdf&#13;
cert-portal.siemens.com
https://www.cybersecurity-help.cz/vdb/SB2022021105&#13;
cybersecurity-help.cz
https://www.cisa.gov/uscert/ics/advisories/icsa-22-041-01
cisa.gov
and 12 more references View all →

Timeline

Published
Feb 9, 2022
Last Updated
Nov 21, 2024

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