XSS in Siemens Simatic Drive Controller Cpu 1504d Tf

CVE-2026-25787

Affected devices do not properly validate and sanitize Technology Object (TO) name rendered on the "Motion Control Diagnostics" page of the web interface. This could allow an authenticated attacker who is authorized to download a TIA proje…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.001 (18.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-25787?
CVE-2026-25787 is a critical-severity vulnerability in Siemens Simatic Drive Controller Cpu 1504d Tf, classified under Cross-site Scripting. CVSS score: 9.1/10. Published 2026-05-12.
How severe is CVE-2026-25787?
Critical severity. CVSS v3 base score is 9.1 out of 10.