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Multiple Vulnerabilities in SINEMA Remote Connect Sever Before V3.2 SP4

Monitor4.3SSA-626856Dec 9, 2025
Attack VectorNetwork
Auth RequiredLow
ComplexityLow
User InteractionNone needed
Summary

SINEMA Remote Connect Server before version 3.2 SP4 contains multiple vulnerabilities related to improper file permissions (CWE-732) and insufficient authorization checks (CWE-863). These flaws allow authenticated users with low privileges to modify files or access resources they should not be permitted to change, potentially compromising the integrity of remote access configurations and security settings.

What this means
What could happen
An authenticated user with low privileges could modify files or settings on the SINEMA Remote Connect Server that could affect remote access policies or VPN configurations for industrial operations.
Who's at risk
Organizations operating SINEMA Remote Connect Server for secure remote access to industrial control systems and engineering workstations should prioritize this update. This affects any facility using Siemens remote connectivity solutions for staff access to operational technology networks.
How it could be exploited
An attacker with valid credentials to the SINEMA Remote Connect Server could exploit improper file permissions (CWE-732) or insufficient authorization checks (CWE-863) to modify system settings or access control lists, potentially disrupting remote access for critical staff or altering network security controls.
Prerequisites
  • Valid login credentials to SINEMA Remote Connect Server
  • Network access to the server management interface
  • Low-privilege user account on the server
remotely exploitablerequires valid credentialsaffects remote access securitylow CVSS but authorization-based flaw
Exploitability
Low exploit probability (EPSS 0.0%)
Affected products (1)
ProductAffected VersionsFix Status
SINEMA Remote Connect ServerAll versions < V3.2 SP43.2 SP4
Remediation & Mitigation
0/1
Schedule — requires maintenance window
0/1

Patching may require device reboot — plan for process interruption

HOTFIXUpdate SINEMA Remote Connect Server to version 3.2 SP4 or later
View full Siemens ProductCERT advisory
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Multiple Vulnerabilities in SINEMA Remote Connect Sever Before V3.2 SP4 | CVSS 4.3 - OTPulse