CVE-2023-27336
highpriority · track · 0EPSS 0.008 · 57 %ileEURUUSEPSS · scored 2026-10-27
Softing edgeConnector Siemens OPC UA Server Null Pointer Dereference 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 client certificates. The issue results from dereferencing a NULL pointer. An attacker can leverage this vulnerability to create a denial-of-service condition on the system. Was ZDI-CAN-20508.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (5)
Products and version ranges known to be affected.
- softing secure integration server< 1.30nvdUScpe:2.3:a:softing:secure_integration_server:*:*:*:*:*:*:*:*
also known as (6)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (5)
External citations — patches, advisories, analysis.
- https://cxsecurity.com/cveshow/CVE-2023-27336/cnnvd
- https://industrial.softing.com/products/docker/edgeconnector-siemens.htmlPatchcnnvd
- https://www.zerodayinitiative.com/advisories/ZDI-23-1065/cnnvd
- https://www.zerodayinitiative.com/advisories/ZDI-23-1065/enisa_euvd
- https://www.zerodayinitiative.com/advisories/ZDI-23-1065/Third Party Advisorynvd
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