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PatchSiren cyber security CVE debrief

CVE-2024-47553 Siemens CVE debrief

A critical command injection vulnerability in Siemens SINEC Security Monitor allows authenticated remote attackers with low privileges to escalate to root-level code execution on the underlying operating system. The flaw stems from improper input validation in the `ssmctl-client` command. CISA published this advisory on October 8, 2024, with subsequent republications through March 12, 2026 to incorporate updates from Siemens ProductCERT. The vendor has released version 4.9.0 to address this issue.

Vendor
Siemens
Product
SINEC Security Monitor
CVSS
CRITICAL 9.9
CISA KEV
Not listed in stored evidence
Original CVE published
2024-10-08
Original CVE updated
2026-03-12
Advisory published
2024-10-08
Advisory updated
2026-03-12

Who should care

Organizations operating Siemens SINEC Security Monitor in industrial environments, OT security teams, critical infrastructure operators, and asset owners responsible for network security monitoring in manufacturing, energy, and process control sectors.

Technical summary

The SINEC Security Monitor application fails to properly validate user input passed to the `ssmctl-client` command. An authenticated attacker with low privileges can exploit this insufficient input validation to inject arbitrary commands, resulting in remote code execution with root privileges on the host operating system. The CVSS 3.1 vector (AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:C) reflects network attack vector, low attack complexity, low privileges required, no user interaction, changed scope, and high impacts to confidentiality, integrity, and availability.

Defensive priority

critical

Recommended defensive actions

  • Upgrade Siemens SINEC Security Monitor to version 4.9.0 or later immediately
  • Restrict network access to SINEC Security Monitor management interfaces to trusted administrative hosts only
  • Monitor for anomalous `ssmctl-client` command execution or unexpected privilege escalation attempts
  • Apply defense-in-depth strategies for industrial control systems per CISA guidance
  • Review and validate input sanitization for all administrative commands in OT environments

Evidence notes

CVE published 2024-10-08; CISA advisory ICSA-24-284-06; Siemens ProductCERT SSA-430425; CVSS 3.1 score 9.9 (Critical); vendor fix available in V4.9.0

Official resources

2024-10-08