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.
Advisories

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Fixes

Solution

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Workaround

No workaround given by the vendor.

History

Tue, 13 Oct 2026 09:45:00 +0000

Type Values Removed Values Added
Description 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.
Weaknesses CWE-22
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N'}

cvssV4_0

{'score': 8.7, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: siemens

Published:

Updated: 2026-10-13T09:18:57.499Z

Reserved: 2026-09-03T07:46:11.019Z

Link: CVE-2026-85114

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-13T10:17:20.640

Modified: 2026-10-13T10:17:20.640

Link: CVE-2026-85114

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses