CVE-2023-46285

Severity: high (CVSS 7.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.9% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2023-12-12 · updated 2026-06-17
Weakness: CWE-20

Description

A vulnerability has been identified in Opcenter Execution Foundation (All versions < V2407), Opcenter Quality (All versions < V2312), SIMATIC PCS neo (All versions < V4.1), SINEC NMS (All versions < V2.0 SP1), Totally Integrated Automation Portal (TIA Portal) V14 (All versions), Totally Integrated Automation Portal (TIA Portal) V15.1 (All versions), Totally Integrated Automation Portal (TIA Portal) V16 (All versions), Totally Integrated Automation Portal (TIA Portal) V17 (All versions < V17 Update 8), Totally Integrated Automation Portal (TIA Portal) V18 (All versions < V18 Update 3). The affected application contains an improper input validation vulnerability that could allow an attacker to bring the service into a Denial-of-Service state by sending a specifically crafted message to 4004/tcp. The corresponding service is auto-restarted after the crash is detected by a watchdog.

Affected products

Siemens Opcenter Quality: all versions
Siemens SIMATIC PCS neo: before 4.1 — fixed in 4.1
Siemens Sinumerik Integrate Runmyhmi /Automotive: all versions
Siemens Totally Integrated Automation Portal: from 14.0 before 15; from 15 before 16; from 16 before 17; from 17 before 18; 18, 18-update_1 — fixed in 15, 16, 17, 18

How to fix

Upgrade to a fixed version: Siemens SIMATIC PCS neo 4.1; Siemens Totally Integrated Automation Portal 15, 16, 17, 18. Check the vendor advisory for mitigations.

References

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