Status: UPDATED | Advisory ID: CVE-2026-25789
| CVE | CVE-2026-25789 |
| CVSS Score / Version | 7.1 (High) / CVSS v3.1 |
| Updated | 2026-07-14 |
| CVSS Vector | CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H |
| CVSS Prose | attack vector is network; attack complexity is high; privileges required is low; user interaction is required; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high. |
| Affected products | see table below |
| Classified as | CWE-79 (Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) |
| Vendor | Product | Affected Versions | Patch Status |
|---|---|---|---|
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP MFP | ||
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP MFP | ||
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP MFP | ||
| Siemens | SIMATIC ET 200SP CPU 1510SP F-1 PN | ||
| Siemens | SIMATIC ET 200SP CPU 1510SP-1 PN | ||
| Siemens | SIMATIC ET 200SP CPU 1512SP F-1 PN | ||
| Siemens | SIMATIC ET 200SP CPU 1512SP-1 PN | ||
| Siemens | SIMATIC S7-1500 CPU 1511-1 PN | ||
| Siemens | SIMATIC S7-1500 CPU 1511F-1 PN | ||
| Siemens | SIMATIC S7-1500 CPU 1513-1 PN | ||
| Siemens | SIMATIC S7-1500 CPU 1515-2 PN | ||
| Siemens | SIMATIC S7-1500 CPU 1515F-2 PN | ||
| Siemens | SIMATIC S7-1500 CPU 1516-3 PN/DP | ||
| Siemens | SIMATIC S7-1500 CPU 1516F-3 PN/DP | ||
| Siemens | SIMATIC Drive Controller CPU 1504D TF | ||
| Siemens | SIMATIC Drive Controller CPU 1507D TF | ||
| Siemens | SIMATIC ET 200SP CPU 1514SP F-2 PN | ||
| Siemens | SIMATIC ET 200SP CPU 1514SP-2 PN | ||
| Siemens | SIMATIC ET 200SP CPU 1514SPT F-2 PN | ||
| Siemens | SIMATIC ET 200SP CPU 1514SPT-2 PN | ||
| Siemens | SIMATIC ET 200SP Open Controller CPU 1515SP PC (incl. SIPLUS variants) | ||
| Siemens | SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) V2 CPUs | ||
| Siemens | SIMATIC ET 200SP Open Controller CPU 1515SP PC2 (incl. SIPLUS variants) V3 CPUs | ||
| Siemens | SIMATIC ET 200SP Open Controller CPU 1515SP PC3 V4 CPUs | ||
| Siemens | SIMATIC S7-1500 CPU 1511C-1 PN | ||
| Siemens | SIMATIC S7-1500 CPU 1511T-1 PN | ||
| Siemens | SIMATIC S7-1500 CPU 1511TF-1 PN | ||
| Siemens | SIMATIC S7-1500 CPU 1512C-1 PN | ||
| Siemens | SIMATIC S7-1500 CPU 1513F-1 PN | ||
| Siemens | SIMATIC S7-1500 CPU 1513pro F-2 PN | ||
| Siemens | SIMATIC S7-1500 CPU 1513pro-2 PN | ||
| Siemens | SIMATIC S7-1500 CPU 1515T-2 PN | ||
| Siemens | SIMATIC S7-1500 CPU 1515TF-2 PN | ||
| Siemens | SIMATIC S7-1500 CPU 1516pro F-2 PN | ||
| Siemens | SIMATIC S7-1500 CPU 1516pro-2 PN | ||
| Siemens | SIMATIC S7-1500 CPU 1516T-3 PN | ||
| Siemens | SIMATIC S7-1500 CPU 1516T-3 PN/DP | ||
| Siemens | SIMATIC S7-1500 CPU 1516TF-3 PN | ||
| Siemens | SIMATIC S7-1500 CPU 1516TF-3 PN/DP | ||
| Siemens | SIMATIC S7-1500 CPU 1517-3 PN | ||
| Siemens | SIMATIC S7-1500 CPU 1517-3 PN/DP | ||
| Siemens | SIMATIC S7-1500 CPU 1517F-3 PN | ||
| Siemens | SIMATIC S7-1500 CPU 1517F-3 PN/DP | ||
| Siemens | SIMATIC S7-1500 CPU 1517T-3 PN | ||
| Siemens | SIMATIC S7-1500 CPU 1517T-3 PN/DP | ||
| Siemens | SIMATIC S7-1500 CPU 1517TF-3 PN | ||
| Siemens | SIMATIC S7-1500 CPU 1517TF-3 PN/DP | ||
| Siemens | SIMATIC S7-1500 CPU 1518-3 PN | ||
| Siemens | SIMATIC S7-1500 CPU 1518-4 PN/DP | ||
| Siemens | SIMATIC S7-1500 CPU 1518F-3 PN | ||
| Siemens | SIMATIC S7-1500 CPU 1518F-4 PN/DP | ||
| Siemens | SIMATIC S7-1500 CPU 1518T-3 PN | ||
| Siemens | SIMATIC S7-1500 CPU 1518T-4 PN/DP | ||
| Siemens | SIMATIC S7-1500 CPU 1518TF-3 PN | ||
| Siemens | SIMATIC S7-1500 CPU 1518TF-4 PN/DP | ||
| Siemens | SIMATIC S7-1500 CPU S7-1518-4 PN/DP ODK | ||
| Siemens | SIMATIC S7-1500 CPU S7-1518F-4 PN/DP ODK | ||
| Siemens | SIMATIC S7-1500 ET 200pro: CPU 1513PRO F-2 PN | ||
| Siemens | SIMATIC S7-1500 ET 200pro: CPU 1513PRO-2 PN | ||
| Siemens | SIMATIC S7-1500 ET 200pro: CPU 1516PRO F-2 PN | ||
| Siemens | SIMATIC S7-1500 ET 200pro: CPU 1516PRO-2 PN | ||
| Siemens | SIMATIC S7-1500 Software Controller CPU 1507S F V2 | ||
| Siemens | SIMATIC S7-1500 Software Controller CPU 1507S F V3 | ||
| Siemens | SIMATIC S7-1500 Software Controller CPU 1507S F V4 | ||
| Siemens | SIMATIC S7-1500 Software Controller CPU 1507S V2 | ||
| Siemens | SIMATIC S7-1500 Software Controller CPU 1507S V3 | ||
| Siemens | SIMATIC S7-1500 Software Controller CPU 1507S V4 | ||
| Siemens | SIMATIC S7-1500 Software Controller CPU 1508S F V2 | ||
| Siemens | SIMATIC S7-1500 Software Controller CPU 1508S F V3 | ||
| Siemens | SIMATIC S7-1500 Software Controller CPU 1508S F V4 | ||
| Siemens | SIMATIC S7-1500 Software Controller CPU 1508S T V3 | ||
| Siemens | SIMATIC S7-1500 Software Controller CPU 1508S TF V3 | ||
| Siemens | SIMATIC S7-1500 Software Controller CPU 1508S V2 | ||
| Siemens | SIMATIC S7-1500 Software Controller CPU 1508S V3 | ||
| Siemens | SIMATIC S7-1500 Software Controller CPU 1508S V4 | ||
| Siemens | SIMATIC S7-1500 Software Controller Linux V2 | ||
| Siemens | SIMATIC S7-1500 Software Controller Linux V3 | ||
| Siemens | SIMATIC S7-PLCSIM Advanced | ||
| Siemens | SIPLUS ET 200SP CPU 1510SP F-1 PN | ||
| Siemens | SIPLUS ET 200SP CPU 1510SP F-1 PN RAIL | ||
| Siemens | SIPLUS ET 200SP CPU 1510SP-1 PN | ||
| Siemens | SIPLUS ET 200SP CPU 1510SP-1 PN RAIL | ||
| Siemens | SIPLUS ET 200SP CPU 1512SP F-1 PN | ||
| Siemens | SIPLUS ET 200SP CPU 1512SP F-1 PN RAIL | ||
| Siemens | SIPLUS ET 200SP CPU 1512SP-1 PN | ||
| Siemens | SIPLUS ET 200SP CPU 1512SP-1 PN RAIL | ||
| Siemens | SIPLUS S7-1500 CPU 1511-1 PN | ||
| Siemens | SIPLUS S7-1500 CPU 1511-1 PN T1 RAIL | ||
| Siemens | SIPLUS S7-1500 CPU 1511-1 PN TX RAIL | ||
| Siemens | SIPLUS S7-1500 CPU 1511F-1 PN | ||
| Siemens | SIPLUS S7-1500 CPU 1513-1 PN | ||
| Siemens | SIPLUS S7-1500 CPU 1513F-1 PN | ||
| Siemens | SIPLUS S7-1500 CPU 1515F-2 PN | ||
| Siemens | SIPLUS S7-1500 CPU 1515F-2 PN RAIL | ||
| Siemens | SIPLUS S7-1500 CPU 1515F-2 PN T2 RAIL | ||
| Siemens | SIPLUS S7-1500 CPU 1516-3 PN/DP | ||
| Siemens | SIPLUS S7-1500 CPU 1516-3 PN/DP RAIL | ||
| Siemens | SIPLUS S7-1500 CPU 1516-3 PN/DP TX RAIL | ||
| Siemens | SIPLUS S7-1500 CPU 1516F-3 PN/DP | ||
| Siemens | SIPLUS S7-1500 CPU 1516F-3 PN/DP RAIL | ||
| Siemens | SIPLUS S7-1500 CPU 1518-4 PN/DP | ||
| Siemens | SIPLUS S7-1500 CPU 1518F-4 PN/DP |
| Subsystems | General OT |
| Sectors | Multiple |
Affected devices do not properly validate and sanitize filenames on the Firmware Update page. This could allow a remote attacker to social engineer the user into selecting the modified firmware file to be uploaded. This would result in malitcious JavaScript execution in the context of the authenticated user's session without requiring the file to be uploaded, potentially leading to session hijacking or credential theft. (NVD)
Monitor Siemens's web page for any future patch releases.
| Source | Reference |
|---|---|
| NVD | https://nvd.nist.gov/vuln/detail/CVE-2026-25789 |
| CVE | https://www.cve.org/CVERecord?id=CVE-2026-25789 |