Vulnerabilities of Siemens SIMATIC S7-400 H V6 CPU family (incl. SIPLUS variants)
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CVE list
| CVE | Summary | Score | Published |
|---|---|---|---|
| CVE-2025-40833 | The affected devices contain a null pointer dereference vulnerability while processing specially crafted IPv4 requests | 7.5 High | May 12, 2026 |
| CVE-2025-40820 | Affected products do not properly enforce TCP sequence number validation in specific scenarios but accept values… | 7.5 High | Dec 9, 2025 |
| CVE-2024-23814 | The integrated ICMP service of the network stack of affected devices can be forced to exhaust its available memory… | 5.3 Medium | Feb 11, 2025 |
| CVE-2021-40368 | A vulnerability has been identified in SIMATIC S7-400 CPU 412-1 DP V7 (All versions), SIMATIC S7-400 CPU 412-2 DP V7… | 7.5 High | Apr 12, 2022 |
| CVE-2022-25622 | The PROFINET (PNIO) stack, when integrated with the Interniche IP stack, improperly handles internal resources for TCP… | 5.3 Medium | Apr 12, 2022 |
| CVE-2019-10936 | Affected devices improperly handle large amounts of specially crafted UDP packets | 7.5 High | Oct 10, 2019 |
| CVE-2018-16557 | A vulnerability has been identified in SIMATIC S7-400 CPU 412-1 DP V7 (All versions), SIMATIC S7-400 CPU 412-2 DP V7… | 8.2 High | Dec 13, 2018 |
| CVE-2018-16556 | A vulnerability has been identified in SIMATIC S7-400 CPU 412-1 DP V7 (All versions), SIMATIC S7-400 CPU 412-2 DP V7… | 7.5 High | Dec 13, 2018 |
| CVE-2018-4843 | A vulnerability has been identified in SIMATIC S7-400 CPU 414-3 PN/DP V7 (All versions < V7.0.3), SIMATIC S7-400 CPU… | 6.5 Medium | Mar 20, 2018 |
| CVE-2017-2681 | Specially crafted PROFINET DCP packets sent on a local Ethernet segment (Layer 2) to an affected product could cause a… | 6.5 Medium | May 11, 2017 |
| CVE-2017-2680 | Specially crafted PROFINET DCP broadcast packets could cause a denial of service condition of affected products on a… | 6.5 Medium | May 11, 2017 |
Other Siemens products
SIMATIC S7-1500 CPU 1518-4 PN/DP MFP 1132
SIPLUS S7-1500 CPU 1518-4 PN/DP MFP 1132
SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP 1132
SIMATIC S7-1500 TM MFP - GNU/Linux subsystem 952
RUGGEDCOM RST2428P 326
SCALANCE XC-300/XR-300/XC-400/XR-500WG/XR-500 family 247
SCALANCE XCM-/XRM-/XCH-/XRH-300 family 221
SIMATIC CN 4100 187
JT2Go 153
RUGGEDCOM APE1808 99
Teamcenter Visualization 95
RUGGEDCOM ROX RX1536 91