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CVE-2021-33720

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...

Published: Sep 14, 2021Updated: Nov 21, 2024 Sources: CVE List NVD csafCWE-120
7.5HIGH
NVD MITRE
EPSS Score
1.0%
Top 41.4%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not available

Description

The latest update for SIPROTEC 5 relays fixes two vulnerabilities that could allow a remote attacker to cause a denial-of-service or potentially trigger a remote code execution under certain circumstances. Siemens has released an update for SIPROTEC 5 relays and recommends to update to the latest version.

No summary for this CVE yet.

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
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Weaknesses

CWE-120

Affected Products

Siemens
commercial·DEaka siemens ag
SIPROTEC 5 relays with CPU variants CP050
ICS / OT / IoT
SIPROTEC 5 relays with CPU variants CP100
ICS / OT / IoT
SIPROTEC 5 relays with CPU variants CP300
ICS / OT / IoT
siprotec 5 with cpu variant cp050
ICS / OT / IoT
siprotec 5 with cpu variant cp100
ICS / OT / IoT
siprotec 5 with cpu variant cp300
ICS / OT / IoT

Exploitability

Official Patch Available
Workaround Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Initial Access
Privilege Escalation
View detailed technique mapping

References

https://cert-portal.siemens.com/productcert/csaf/ssa-847986.json
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/txt/ssa-847986.txt
cert-portal.siemens.com
https://cert-portal.siemens.com/productcert/pdf/ssa-847986.pdf
cert-portal.siemens.com
and 11 more references View all →

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