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CVE-2021-33719

Published: Sep 14, 2021Updated: Nov 21, 2024 Sources: CVE List NVD BDU csafCWE-120
9.8CRITICAL
NVD MITRE
EPSS Score
2.1%
Top 20.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

A vulnerability has been identified in SIPROTEC 5 relays with CPU variants CP050 (All versions < V8.80), SIPROTEC 5 relays with CPU variants CP100 (All versions < V8.80), SIPROTEC 5 relays with CPU variants CP300 (All versions < V8.80). Specially crafted packets sent to port 4443/tcp could cause a Denial-of-Service condition or potential remote code execution.

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-120

Affected Products

SIPROTEC 5 CPU CP100Red Lion Controls, Inc.
Embedded
ICS / OT / IoT / plc-scada-hmi
SIPROTEC 5 CPU CP300Red Lion Controls, Inc.
Embedded
ICS / OT / IoT / plc-scada-hmi
SIPROTEC 5 CPU CP200Red Lion Controls, Inc.
Embedded
ICS / OT / IoT / plc-scada-hmi
SIPROTEC 5 CPU CP050Red Lion Controls, Inc.
Embedded
ICS / OT / IoT / plc-scada-hmi
SIPROTEC 5 CPU CP150Red Lion Controls, Inc.
Embedded
ICS / OT / IoT / plc-scada-hmi
red lion controls, inc.commercialUSICS / OT / IoTaka siprotec 5 cpu cp100, siprotec 5 cpu cp300, siprotec 5 cpu cp200
and 6 more affected products View all →

Exploitability

Official Patch Available
Workaround Available
No detection template yetWe 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 to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://nvd.nist.gov/vuln/detail/CVE-2021-33719&#13;
nvd.nist.gov
https://cert-portal.siemens.com/productcert/pdf/ssa-847986.pdf
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/csaf/ssa-847986.json
cert-portal.siemens.com
and 12 more references View all →

Timeline

Published
Sep 14, 2021
Last Updated
Nov 21, 2024

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