CVE-2025-40943: Siemens SIMATIC Drive Controller CPU 1504d Tf
Critical severity, CVSS 9.6. EPSS: 0.5% chance of exploitation in the next 30 days.
Affected devices do not properly sanitize contents of trace files. This could allow an attacker to inject code through social engineering an authorized user, who has the function right "Read diagnostics", to import a specially crafted trace file. The malicious trace file is insufficiently sanitized and malicious code could be executed in the clients browser session and trigger PLC operations via the webserver that the legitimate user is authorized to perform.
Affected products
- Siemens SIMATIC Drive Controller CPU 1504d Tf: before V3.1.6 (fixed in V3.1.6)
- Siemens SIMATIC Drive Controller CPU 1507d Tf: before V3.1.6 (fixed in V3.1.6)
- Siemens SIMATIC Et 200sp CPU 1510sp-1 Pn: before V2.9.9 (fixed in V2.9.9); before V4.1.2 (fixed in V4.1.2)
- Siemens SIMATIC Et 200sp CPU 1510sp F-1 Pn: before V2.9.9 (fixed in V2.9.9); before V4.1.2 (fixed in V4.1.2)
- Siemens SIMATIC Et 200sp CPU 1512sp-1 Pn: before V2.9.9 (fixed in V2.9.9); before V4.1.2 (fixed in V4.1.2)
- Siemens SIMATIC Et 200sp CPU 1512sp F-1 Pn: before V2.9.9 (fixed in V2.9.9); before V4.1.2 (fixed in V4.1.2)
- Siemens SIMATIC Et 200sp CPU 1514sp-2 Pn: before V4.1.2 (fixed in V4.1.2)
- Siemens SIMATIC Et 200sp CPU 1514sp F-2 Pn: before V4.1.2 (fixed in V4.1.2)
- Siemens SIMATIC Et 200sp CPU 1514spt-2 Pn: before V4.1.2 (fixed in V4.1.2)
- Siemens SIMATIC Et 200sp CPU 1514spt F-2 Pn: before V4.1.2 (fixed in V4.1.2)
- Siemens SIMATIC Et 200sp Open Controller CPU 1515sp PC2 Incl. Siplus Variants v2 Cpus - Windows OS: any version
- Siemens SIMATIC Et 200sp Open Controller CPU 1515sp PC2 Incl. Siplus Variants v3 Cpus - Industrial OS: any version
- Siemens SIMATIC Et 200sp Open Controller CPU 1515sp PC2 Incl. Siplus Variants v3 Cpus - Windows OS: any version
- Siemens SIMATIC Et 200sp Open Controller CPU 1515sp PC3 v4 Cpus: any version
- Siemens SIMATIC Et 200sp Open Controller CPU 1515sp Pc Incl. Siplus Variants: any version
- Siemens SIMATIC s7-1500 CPU 1511-1 Pn: any version; before V2.9.9 (fixed in V2.9.9); before V4.1.2 (fixed in V4.1.2)
- Siemens SIMATIC s7-1500 CPU 1511c-1 Pn: before V2.9.9 (fixed in V2.9.9); before V4.1.2 (fixed in V4.1.2)
- Siemens SIMATIC s7-1500 CPU 1511f-1 Pn: before V2.9.9 (fixed in V2.9.9); before V4.1.2 (fixed in V4.1.2)
- Siemens SIMATIC s7-1500 CPU 1511t-1 Pn: before V2.9.9 (fixed in V2.9.9); before V4.1.2 (fixed in V4.1.2)
- Siemens SIMATIC s7-1500 CPU 1511tf-1 Pn: before V2.9.9 (fixed in V2.9.9); before V4.1.2 (fixed in V4.1.2)
- Siemens SIMATIC s7-1500 CPU 1512c-1 Pn: before V2.9.9 (fixed in V2.9.9); before V4.1.2 (fixed in V4.1.2)
- Siemens SIMATIC s7-1500 CPU 1513-1 Pn: before V2.9.9 (fixed in V2.9.9); before V4.1.2 (fixed in V4.1.2)
- Siemens SIMATIC s7-1500 CPU 1513f-1 Pn: before V2.9.9 (fixed in V2.9.9); before V4.1.2 (fixed in V4.1.2)
- Siemens SIMATIC s7-1500 CPU 1513pro-2 Pn: before V4.1.2 (fixed in V4.1.2)
- Siemens SIMATIC s7-1500 CPU 1513pro F-2 Pn: before V4.1.2 (fixed in V4.1.2)
- and 78 more
Published 2026-03-10. Last modified 2026-06-17.