PT-2023-21069 · Softing · Softing Edgeconnector Siemens

Noam Moshe + 3 · Published 2023-08-09 · Updated 2025-08-13 · CVE-2023-27334

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Softing edgeConnector Siemens (affected versions not specified)

Description This issue allows remote attackers to create a denial-of-service condition on affected installations of Softing edgeConnector Siemens. Authentication is not required to exploit this issue. 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, leveraging this to create a denial-of-service condition on the system.

Recommendations At the moment, there is no information about a newer version that contains a fix for this issue.

Fix

DoS

Resource Exhaustion

Weakness Enumeration

CWE-400

Related Identifiers

CVE-2023-27334

ZDI-23-1054

Affected Products

Softing Edgeconnector Siemens

References · 6

• https://industrial.softing.com/fileadmin/psirt/downloads/syt-2023-1.html · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2023-27334 · Vendor Advisory
• https://zerodayinitiative.com/advisories/ZDI-23-1054 · Security Note
• https://nvd.nist.gov/vuln/detail/CVE-2023-27334 · Security Note
• https://t.me/cveNotify/131970 · Telegram Post
• https://t.me/cvenotify/78947 · Telegram Post