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Multiple Vulnerabilities in SINEMA Remote Connect Client Before V3.2 SP3

Act Now9.8SSA-615740Mar 11, 2025
Attack VectorNetwork
Auth RequiredNone
ComplexityLow
User InteractionNone needed
Summary

SINEMA Remote Connect Client before V3.2 SP3 contains multiple vulnerabilities including integer overflow (CWE-190), improper resource validation (CWE-420), unsafe buffer operations (CWE-121), unrestricted file upload (CWE-434), and resource leaks (CWE-772). These flaws allow unauthenticated remote code execution on systems running the client.

What this means
What could happen
An attacker with network access could execute arbitrary code on engineering workstations running SINEMA Remote Connect Client, gaining full control of devices used to manage remote Siemens systems and potentially compromising connected industrial equipment.
Who's at risk
Organizations using SINEMA Remote Connect Client for remote management of Siemens industrial control systems and PLCs should prioritize this update. This affects IT teams managing remote engineering access to production equipment such as process control systems, power distribution networks, water treatment facilities, and manufacturing automation.
How it could be exploited
An attacker sends a specially crafted network request to the SINEMA Remote Connect Client service. The client fails to properly validate input (CWE-190, CWE-434), allowing the attacker to trigger a memory corruption condition (CWE-121) or resource mismanagement (CWE-772), leading to arbitrary code execution with the privileges of the client process.
Prerequisites
  • Network access to the SINEMA Remote Connect Client listening port
  • SINEMA Remote Connect Client version before V3.2 SP3 installed and running
remotely exploitableno authentication requiredlow complexityhigh EPSS score (11.1%)affects engineering workstations with access to critical systems
Exploitability
High exploit probability (EPSS 11.1%)
Affected products (1)
ProductAffected VersionsFix Status
SINEMA Remote Connect ClientAll versions < V3.2 SP33.2 SP3
Remediation & Mitigation
0/1
Schedule — requires maintenance window
0/1

Patching may require device reboot — plan for process interruption

HOTFIXUpdate SINEMA Remote Connect Client to version V3.2 SP3 or later
View full Siemens ProductCERT advisory
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Multiple Vulnerabilities in SINEMA Remote Connect Client Before V3.2 SP3 | CVSS 9.8 - OTPulse