CVE-2023-27334
HIGHSofting edgeConnector < 3.70 - Unauthenticated Denial of Service via OPC UA ConditionRefresh Requests
Title source: llmDescription
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.
References (2)
Core 2
Core References
Third Party Advisory x_research-advisory
https://www.zerodayinitiative.com/advisories/ZDI-23-1054/
Vendor Advisory vendor-advisory
https://industrial.softing.com/fileadmin/psirt/downloads/syt-2023-1.html
Scores
CVSS v3
7.5
EPSS
0.0132
EPSS Percentile
67.2%
Attack Vector
NETWORK
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-400
Status
published
Products (4)
softing/edgeaggregator
< 3.70
softing/edgeconnector
< 3.70
softing/opc_ua_c\+\+_software_development_kit
< 6.20.1
softing/secure_integration_server
< 1.30
Published
May 03, 2024
Tracked Since
Feb 18, 2026