CVE-2022-47374: Siemens 6ag1414-3em07-7ab0 Firmware

High severity, CVSS 7.5. EPSS: 0.7% chance of exploitation in the next 30 days.

A vulnerability has been identified in SIMATIC PC-Station Plus (All versions), SIMATIC S7-400 CPU 412-2 PN V7 (All versions), SIMATIC S7-400 CPU 414-3 PN/DP V7 (All versions), SIMATIC S7-400 CPU 414F-3 PN/DP V7 (All versions), SIMATIC S7-400 CPU 416-3 PN/DP V7 (All versions), SIMATIC S7-400 CPU 416F-3 PN/DP V7 (All versions), SINAMICS S120 (incl. SIPLUS variants) (All versions < V5.2 SP3 HF15), SIPLUS S7-400 CPU 414-3 PN/DP V7 (All versions), SIPLUS S7-400 CPU 416-3 PN/DP V7 (All versions). The affected products do not handle HTTP(S) requests to the web server correctly. This could allow an attacker to exhaust system resources and create a denial of service condition for the device.

Affected products

• Siemens 6ag1414-3em07-7ab0 Firmware: any version
• Siemens 6ag1416-3es07-7ab0 Firmware: any version
• Siemens 6es7412-2ek07-0ab0 Firmware: any version
• Siemens 6es7414-3em07-0ab0 Firmware: any version
• Siemens 6es7414-3fm07-0ab0 Firmware: any version
• Siemens 6es7416-3es07-0ab0 Firmware: any version
• Siemens 6es7416-3fs07-0ab0 Firmware: any version
• Siemens SIMATIC Pc-Station Plus Firmware: any version
• Siemens Sinamics s120 Firmware: affected versions not specified; version 4.7 only; version 4.8 only; version 4.9 only; version 5.0 only; version 5.1 only; …

Published 2023-12-12. Last modified 2026-06-17.