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Vulnerability record · CVE-2023-39479 · published 3 May 2024

CVE-2023-39479: Softing secure integration server vulnerability

Softing · Secure Integration Server

Softing Secure Integration Server OPC UA Gateway Directory Creation Vulnerability. This vulnerability allows remote attackers to create directories on affected installations of Softing Secure Integration Server. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the handling of FileDirectory OPC UA Objects. The issue results from allowing unauthorized access to the filesystem. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of root. Was ZDI-CAN-20548.

8.8 CVSS 3.1 High EPSS 1.6% · top 25.4% CWE-552 · CWE-552
8.8CVSS 3.1 base score
1.6%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

Softing Secure Integration Server OPC UA Gateway Directory Creation Vulnerability. This vulnerability allows remote attackers to create directories on affected installations of Softing Secure Integration Server. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the handling of FileDirectory OPC UA Objects. The issue results from allowing unauthorized access to the filesystem. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of root. Was ZDI-CAN-20548.

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.zerodayinitiative.com/advisories/ZDI-23-1061/ Third Party Advisory
https://www.zerodayinitiative.com/advisories/ZDI-23-1061/ Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2022-2336Softing edgeaggregator improper authentication vulnerabilitySofting Secure Integration Server, edgeConnector, and edgeAggregator software ships with the default administrator credentials as `admin` and passwor…EPSS 1.00%9.6CVE-2023-27335Softing edgeaggregator cross-site scripting vulnerabilitySofting edgeAggregator Client Cross-Site Scripting Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitra…EPSS 1.4%8.8CVE-2023-39478Softing secure integration server exposure of resource to wrong sphere vulnerabilitySofting Secure Integration Server Exposure of Resource to Wrong Sphere Remote Code Execution Vulnerability. This vulnerability allows remote attacker…EPSS 1.6%8.8CVE-2023-39481Softing secure integration server interpretation conflict vulnerabilitySofting Secure Integration Server Interpretation Conflict Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute …EPSS 1.6%8.8CVE-2023-38125Softing edgeaggregator vulnerabilitySofting edgeAggregator Permissive Cross-domain Policy with Untrusted Domains Remote Code Execution Vulnerability. This vulnerability allows remote at…EPSS 1.3%7.5CVE-2023-27334Softing edgeaggregator uncontrolled resource consumption vulnerabilitySofting edgeConnector Siemens ConditionRefresh Resource Exhaustion Denial-of-Service Vulnerability. This vulnerability allows remote attackers to cre…EPSS 1.4%7.5CVE-2023-27336Softing edgeaggregator null pointer dereference vulnerabilitySofting edgeConnector Siemens OPC UA Server Null Pointer Dereference Denial-of-Service Vulnerability. This vulnerability allows remote attackers to c…EPSS 0.81%7.5CVE-2023-41151Softing opc uncontrolled resource consumption vulnerabilityAn uncaught exception issue discovered in Softing OPC UA C++ SDK before 6.30 for Windows operating system may cause the application to crash when the…EPSS 0.70%

Source: NIST National Vulnerability Database (record CVE-2023-39479), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.