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CVE-2023-27334

Published: May 3, 2024Updated: Aug 13, 2025 Sources: CVE List NVDCWE-400
NVD MITRE
7.5CVSSHIGH
EPSS Score
1.3%
Top 32.8%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

Softing edgeConnector Siemens ConditionRefresh Resource Exhaustion Denial-of-Service Vulnerability. This vulnerability allows remote attackers to create a denial-of-service condition on affected installations of Softing edgeConnector Siemens. Authentication is not required to exploit this vulnerability. The specific flaw exists within the handling of OPC UA ConditionRefresh requests. By sending a large number of requests, an attacker can consume all available resources on the server. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-20498.

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-400NVD-CWE-noinfo

Affected Products

edgeaggregatorsoftingICS / OT / IoT
edgeconnectorsoftingICS / OT / IoT
opc ua c\+\+ software development kitsoftingICS / OT / IoT
secure integration serversoftingICS / OT / IoT
edgeConnector SiemensSoftingICS / OT / IoT
softingcommercialDEICS / OT / IoT

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

1 technique
Impact
View detailed technique mapping

References

https://industrial.softing.com/fileadmin/psirt/downloads/syt-2023-1.html
industrial.softing.com
https://www.zerodayinitiative.com/advisories/ZDI-23-1054/
zerodayinitiative.com

Timeline

Published
May 3, 2024
Last Updated
Aug 13, 2025

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