CVE-2024-47553: Siemens SINEC Security Monitor · Argument Injection
Affects Siemens SINEC Security MonitorSource CVE Database V5
Public exploit available · CVSS 9.9 Critical : upgrade to 4.9.0 as a priority.
Data as of 26 Oct 2026, 14:05 UTC
- EPSS
- 0.8% chance of exploitation in 30 days – higher than 57% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 4.9.0
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:O/RC:CExploitation evidence
Disclosed: evidence found.
CVE published 8 Oct 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: evidence found.
CVSS exploit maturity: proof of concept public
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), CVSS vector, the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade Siemens SINEC Security Monitor to 4.9.0.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Siemens SINEC Security Monitor | Affected
| Fixed in
|
AI-suggested
- Immediately upgrade Siemens SINEC Security Monitor to version 4.9.0 or later once available, as this will contain the official patch for CVE-2024-47553.
- If you cannot patch yet, restrict access to the ssmctl-client interface to trusted, authenticated users only, using network segmentation and firewall rules to limit exposure.
- Implement strict access controls and monitor authentication logs for unusual or unauthorized access attempts to the SINEC Security Monitor.
- Employ application whitelisting and endpoint detection and response (EDR) solutions on hosts running the vulnerable software to detect and block suspicious command execution.
- Conduct regular audits of user privileges and remove unnecessary accounts or permissions that could be leveraged by attackers.
- Use intrusion detection systems (IDS) and network monitoring to identify anomalous command injection attempts targeting the ssmctl-client.
- Develop and test incident response plans specifically for OT environments to quickly contain and remediate potential breaches.
- Collaborate with Siemens support and subscribe to their security advisories for timely updates and patches. These measures combined will reduce the attack surface and help detect or prevent exploitation until a permanent fix is applied.
Description
A vulnerability has been identified in SINEC Security Monitor (All versions < V4.9.0). The affected application does not properly validate user input to the ```ssmctl-client``` command. This could allow an authenticated, lowly privileged remote attacker to execute arbitrary code with root privileges on the underlying OS.