CVE-2026-25786
Critical
Description
Affected devices do not properly validate and sanitize PLC/station name rendered on the "communication" parameters page of the web interface. This could allow an authenticated attacker who is authorized to download a TIA project into the product, to inject malicious scripts into the page. If a benign user with appropriate rights accesses the "communication" parameters page, the malicious code would be executed in the scope of their web session.
SeverityCritical
CVSS9.1
Exploit probability—
ProductSIMATIC Drive Controller CPU 1504D TF
PublishedMay 12, 2026
First seenMay 12, 2026
Weakness typeCWE-79Cross-site scripting (XSS)
How to fix
Update
- Siemens SIMATIC Drive Controller CPU 1504D TFV3.1.6 or later
- Siemens SIMATIC Drive Controller CPU 1507D TFV3.1.6 or later
- Siemens SIMATIC ET 200SP CPU 1510SP F-1 PNV2.9.9, V4.1.6 or later
- Siemens SIMATIC ET 200SP CPU 1510SP-1 PNV2.9.9, V4.1.6 or later
- Siemens SIMATIC ET 200SP CPU 1512SP F-1 PNV2.9.9, V4.1.6 or later
- Siemens SIMATIC ET 200SP CPU 1512SP-1 PNV2.9.9, V4.1.6 or later
- Siemens SIMATIC ET 200SP CPU 1514SP F-2 PNV4.1.6 or later
- Siemens SIMATIC ET 200SP CPU 1514SP-2 PNV4.1.6 or later
- Siemens SIMATIC ET 200SP CPU 1514SPT F-2 PNV4.1.6 or later
- Siemens SIMATIC ET 200SP CPU 1514SPT-2 PNV4.1.6 or later
- Siemens SIMATIC S7-1500 CPU 1511-1 PNV2.9.9, V4.1.6 or later
- Siemens SIMATIC S7-1500 CPU 1511C-1 PNV2.9.9, V4.1.6 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Siemens SIMATIC Drive Controller CPU 1504D TF | v < V3.1.6 | V3.1.6 |
| Siemens SIMATIC Drive Controller CPU 1507D TF | v < V3.1.6 | V3.1.6 |
| Siemens SIMATIC ET 200SP CPU 1510SP F-1 PN | 0, v < V2.9.9, v < V4.1.6 | V2.9.9, V4.1.6 |
| Siemens SIMATIC ET 200SP CPU 1510SP-1 PN | 0, v < V2.9.9, v < V4.1.6 | V2.9.9, V4.1.6 |
| Siemens SIMATIC ET 200SP CPU 1512SP F-1 PN | 0, v < V2.9.9, v < V4.1.6 | V2.9.9, V4.1.6 |
| Siemens SIMATIC ET 200SP CPU 1512SP-1 PN | 0, v < V2.9.9, v < V4.1.6 | V2.9.9, V4.1.6 |
| Siemens SIMATIC ET 200SP CPU 1514SP F-2 PN | v < V4.1.6 | V4.1.6 |
| Siemens SIMATIC ET 200SP CPU 1514SP-2 PN | v < V4.1.6 | V4.1.6 |
| Siemens SIMATIC ET 200SP CPU 1514SPT F-2 PN | v < V4.1.6 | V4.1.6 |
| Siemens SIMATIC ET 200SP CPU 1514SPT-2 PN | v < V4.1.6 | V4.1.6 |
| Siemens SIMATIC ET 200SP Open Controller CPU 1515SP PC (incl. SIPLUS variants) | 0 | — |
| Siemens SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) V2 CPUs | 0 | — |
| Siemens SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) V3 CPUs | 0 | — |
| Siemens SIMATIC ET 200SP Open Controller CPU 1515SP PC3 V4 CPUs | 0 | — |
| Siemens SIMATIC S7-1500 CPU 1511-1 PN | 0, v < V2.9.9, v < V4.1.6 | V2.9.9, V4.1.6 |
| Siemens SIMATIC S7-1500 CPU 1511C-1 PN | v < V2.9.9, v < V4.1.6 | V2.9.9, V4.1.6 |
| Siemens SIMATIC S7-1500 CPU 1511F-1 PN | 0, v < V2.9.9, v < V4.1.6 | V2.9.9, V4.1.6 |
| Siemens SIMATIC S7-1500 CPU 1511T-1 PN | v < V2.9.9, v < V4.1.6 | V2.9.9, V4.1.6 |
| Siemens SIMATIC S7-1500 CPU 1511TF-1 PN | v < V2.9.9, v < V4.1.6 | V2.9.9, V4.1.6 |
| Siemens SIMATIC S7-1500 CPU 1512C-1 PN | v < V2.9.9, v < V4.1.6 | V2.9.9, V4.1.6 |
| Siemens SIMATIC S7-1500 CPU 1513-1 PN | 0, v < V2.9.9, v < V4.1.6 | V2.9.9, V4.1.6 |
| Siemens SIMATIC S7-1500 CPU 1513F-1 PN | 0, v < V2.9.9, v < V4.1.6 | V2.9.9, V4.1.6 |
| Siemens SIMATIC S7-1500 CPU 1513pro F-2 PN | v < V4.1.6 | V4.1.6 |
| Siemens SIMATIC S7-1500 CPU 1513pro-2 PN | v < V4.1.6 | V4.1.6 |
| Siemens SIMATIC S7-1500 CPU 1515-2 PN | 0, v < V2.9.9, v < V4.1.6 | V2.9.9, V4.1.6 |
| Siemens SIMATIC S7-1500 CPU 1515F-2 PN | 0, v < V2.9.9, v < V4.1.6 | V2.9.9, V4.1.6 |
| Siemens SIMATIC S7-1500 CPU 1515T-2 PN | v < V2.9.9, v < V4.1.6 | V2.9.9, V4.1.6 |
| Siemens SIMATIC S7-1500 CPU 1515TF-2 PN | v < V2.9.9, v < V4.1.6 | V2.9.9, V4.1.6 |
| Siemens SIMATIC S7-1500 CPU 1516-3 PN/DP | 0, v < V2.9.9, v < V4.1.6 | V2.9.9, V4.1.6 |
| Siemens SIMATIC S7-1500 CPU 1516F-3 PN/DP | 0, v < V2.9.9, v < V4.1.6 | V2.9.9, V4.1.6 |
| Siemens SIMATIC S7-1500 CPU 1516pro F-2 PN | v < V4.1.6 | V4.1.6 |
| Siemens SIMATIC S7-1500 CPU 1516pro-2 PN | v < V4.1.6 | V4.1.6 |
| Siemens SIMATIC S7-1500 CPU 1516T-3 PN | v < V4.1.6 | V4.1.6 |
| Siemens SIMATIC S7-1500 CPU 1516T-3 PN/DP | v < V3.1.6 | V3.1.6 |
| Siemens SIMATIC S7-1500 CPU 1516TF-3 PN | v < V4.1.6 | V4.1.6 |
| Siemens SIMATIC S7-1500 CPU 1516TF-3 PN/DP | v < V3.1.6 | V3.1.6 |
| Siemens SIMATIC S7-1500 CPU 1517-3 PN | v < V4.1.6 | V4.1.6 |
| Siemens SIMATIC S7-1500 CPU 1517-3 PN/DP | v < V3.1.6 | V3.1.6 |
| Siemens SIMATIC S7-1500 CPU 1517F-3 PN | v < V4.1.6 | V4.1.6 |
| Siemens SIMATIC S7-1500 CPU 1517F-3 PN/DP | v < V3.1.6 | V3.1.6 |
| Siemens SIMATIC S7-1500 CPU 1517T-3 PN | v < V4.1.6 | V4.1.6 |
| Siemens SIMATIC S7-1500 CPU 1517T-3 PN/DP | v < V3.1.6 | V3.1.6 |
| Siemens SIMATIC S7-1500 CPU 1517TF-3 PN | v < V4.1.6 | V4.1.6 |
| Siemens SIMATIC S7-1500 CPU 1517TF-3 PN/DP | v < V3.1.6 | V3.1.6 |
| Siemens SIMATIC S7-1500 CPU 1518-3 PN | v < V4.1.6 | V4.1.6 |
| Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP | v < V3.1.6 | V3.1.6 |
| Siemens SIMATIC S7-1500 CPU 1518-4 PN/DP MFP | v < V3.1.6 | V3.1.6 |
| Siemens SIMATIC S7-1500 CPU 1518F-3 PN | v < V4.1.6 | V4.1.6 |
| Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP | v < V3.1.6 | V3.1.6 |
| Siemens SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP | v < V3.1.6 | V3.1.6 |
| Siemens SIMATIC S7-1500 CPU 1518T-3 PN | v < V4.1.6 | V4.1.6 |
| Siemens SIMATIC S7-1500 CPU 1518T-4 PN/DP | v < V3.1.6 | V3.1.6 |
| Siemens SIMATIC S7-1500 CPU 1518TF-3 PN | v < V4.1.6 | V4.1.6 |
| Siemens SIMATIC S7-1500 CPU 1518TF-4 PN/DP | v < V3.1.6 | V3.1.6 |
| Siemens SIMATIC S7-1500 CPU S7-1518-4 PN/DP ODK | 0 | — |
| Siemens SIMATIC S7-1500 CPU S7-1518F-4 PN/DP ODK | 0 | — |
| Siemens SIMATIC S7-1500 ET 200pro: CPU 1513PRO F-2 PN | v < V2.9.9 | V2.9.9 |
| Siemens SIMATIC S7-1500 ET 200pro: CPU 1513PRO-2 PN | v < V2.9.9 | V2.9.9 |
| Siemens SIMATIC S7-1500 ET 200pro: CPU 1516PRO F-2 PN | v < V2.9.9 | V2.9.9 |
| Siemens SIMATIC S7-1500 ET 200pro: CPU 1516PRO-2 PN | v < V2.9.9 | V2.9.9 |
| Siemens SIMATIC S7-1500 Software Controller CPU 1507S F V2 | 0 | — |
| Siemens SIMATIC S7-1500 Software Controller CPU 1507S F V3 | 0 | — |
| Siemens SIMATIC S7-1500 Software Controller CPU 1507S F V4 | 0 | — |
| Siemens SIMATIC S7-1500 Software Controller CPU 1507S V2 | 0 | — |
| Siemens SIMATIC S7-1500 Software Controller CPU 1507S V3 | 0 | — |
| Siemens SIMATIC S7-1500 Software Controller CPU 1507S V4 | 0 | — |
| Siemens SIMATIC S7-1500 Software Controller CPU 1508S F V2 | 0 | — |
| Siemens SIMATIC S7-1500 Software Controller CPU 1508S F V3 | 0 | — |
| Siemens SIMATIC S7-1500 Software Controller CPU 1508S F V4 | 0 | — |
| Siemens SIMATIC S7-1500 Software Controller CPU 1508S T V3 | 0 | — |
| Siemens SIMATIC S7-1500 Software Controller CPU 1508S TF V3 | 0 | — |
| Siemens SIMATIC S7-1500 Software Controller CPU 1508S V2 | 0 | — |
| Siemens SIMATIC S7-1500 Software Controller CPU 1508S V3 | 0 | — |
| Siemens SIMATIC S7-1500 Software Controller CPU 1508S V4 | 0 | — |
| Siemens SIMATIC S7-1500 Software Controller Linux V2 | 0 | — |
| Siemens SIMATIC S7-1500 Software Controller Linux V3 | 0 | — |
| Siemens SIMATIC S7-PLCSIM Advanced | 0 | — |
| Siemens SIPLUS ET 200SP CPU 1510SP F-1 PN | v < V2.9.9 | V2.9.9 |
| Siemens SIPLUS ET 200SP CPU 1510SP F-1 PN RAIL | v < V2.9.9 | V2.9.9 |
| Siemens SIPLUS ET 200SP CPU 1510SP-1 PN | v < V2.9.9 | V2.9.9 |
| Siemens SIPLUS ET 200SP CPU 1510SP-1 PN RAIL | v < V2.9.9 | V2.9.9 |
| Siemens SIPLUS ET 200SP CPU 1512SP F-1 PN | 0, v < V2.9.9 | V2.9.9 |
| Siemens SIPLUS ET 200SP CPU 1512SP F-1 PN RAIL | v < V2.9.9 | V2.9.9 |
| Siemens SIPLUS ET 200SP CPU 1512SP-1 PN | v < V2.9.9 | V2.9.9 |
| Siemens SIPLUS ET 200SP CPU 1512SP-1 PN RAIL | v < V2.9.9 | V2.9.9 |
| Siemens SIPLUS S7-1500 CPU 1511-1 PN | 0, v < V2.9.9 | V2.9.9 |
| Siemens SIPLUS S7-1500 CPU 1511-1 PN T1 RAIL | v < V2.9.9 | V2.9.9 |
| Siemens SIPLUS S7-1500 CPU 1511-1 PN TX RAIL | v < V2.9.9 | V2.9.9 |
| Siemens SIPLUS S7-1500 CPU 1511F-1 PN | 0, v < V2.9.9 | V2.9.9 |
| Siemens SIPLUS S7-1500 CPU 1513-1 PN | 0, v < V2.9.9 | V2.9.9 |
| Siemens SIPLUS S7-1500 CPU 1513F-1 PN | 0, v < V2.9.9 | V2.9.9 |
| Siemens SIPLUS S7-1500 CPU 1515F-2 PN | v < V2.9.9 | V2.9.9 |
| Siemens SIPLUS S7-1500 CPU 1515F-2 PN RAIL | v < V2.9.9 | V2.9.9 |
| Siemens SIPLUS S7-1500 CPU 1515F-2 PN T2 RAIL | v < V2.9.9 | V2.9.9 |
| Siemens SIPLUS S7-1500 CPU 1516-3 PN/DP | 0, v < V2.9.9 | V2.9.9 |
| Siemens SIPLUS S7-1500 CPU 1516-3 PN/DP RAIL | v < V2.9.9 | V2.9.9 |
| Siemens SIPLUS S7-1500 CPU 1516-3 PN/DP TX RAIL | v < V2.9.9 | V2.9.9 |
| Siemens SIPLUS S7-1500 CPU 1516F-3 PN/DP | 0, v < V2.9.9 | V2.9.9 |
| Siemens SIPLUS S7-1500 CPU 1516F-3 PN/DP RAIL | v < V2.9.9 | V2.9.9 |
| Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP | v < V3.1.6 | V3.1.6 |
| Siemens SIPLUS S7-1500 CPU 1518-4 PN/DP MFP | v < V3.1.6 | V3.1.6 |
| Siemens SIPLUS S7-1500 CPU 1518F-4 PN/DP | v < V3.1.6 | V3.1.6 |
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