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CVE-2026-85114 Details

ANALYZED

This CVE record has been analyzed and enriched by NVDAPI.com as an independent party.

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.

Metrics

CVSS 3.x Severity and Vector Strings:

VolerionCVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CNA: [email protected]CVSS-B:7.5 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://cert-portal.siemens.com/productcert/html/ssa-390352.html	[email protected]	AdvisoryBundleRemedyVendor

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-22	Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')	[email protected]

Affected Products

Product	Versions
Siemens .NET Client Library	< V3.3.61
CPE No CPEs found in CPE dictionary for this product. Remediation Upgrade: V3.3.61moderate effort Mitigation:low efforthttps://www.siemens.com/cert/operational-guidelines-industrial-security Configure the environment according to Siemens' operational guidelines for Industrial Security.

Change History

2 change records found show changes

Date	Action	Recorded By
Oct 16, 2026	CVE Modified	CISA-ADP
Oct 13, 2026	New CVE Received	[email protected]