CVE-2026-85114 — Siemens / .NET Client Library for SIMATIC S7 Webserver API

CVE-2026-85114

Siemens / .NET Client Library for SIMATIC S7 Webserver API PUBLISHED

Description (CNA)

A vulnerability has been identified in .NET Client Library for SIMATIC S7 Webserver API (All versions < V3.3.61). Affected applications do not properly validate filenames received from remote servers during ticket downloads. This could allow an attacker who can manipulate the ticket response to write arbitrary files outside the intended download directory and, when overwriting is enabled, replace existing files accessible to the application.

Affected (CNA)

Vendor / product	Versions
Siemens / .NET Client Library for SIMATIC S7 Webserver API	affected 0 before V3.3.61

CWE

CWE-22

References

https://cert-portal.siemens.com/productcert/html/ssa-390352.html

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.