Description
A vulnerability has been identified in .NET Client Library for SIMATIC S7 Webserver API (All versions < V3.3.62). Affected applications do not properly redact PLC restore passwords from HTTP error exception messages.

This could allow an attacker with access to logs or other diagnostic output to obtain the plaintext restore password and potentially perform unauthorized operations on the PLC.
Published: 2026-10-13
Score: 6.8 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Tue, 27 Oct 2026 04:30:00 +0000

Type Values Removed Values Added
First Time appeared Siemens
Siemens .net Client Library For Simatic S7 Webserver Api
Vendors & Products Siemens
Siemens .net Client Library For Simatic S7 Webserver Api

Wed, 14 Oct 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


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 < V3.3.62). Affected applications do not properly redact PLC restore passwords from HTTP error exception messages. This could allow an attacker with access to logs or other diagnostic output to obtain the plaintext restore password and potentially perform unauthorized operations on the PLC.
Weaknesses CWE-209
References
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'}

cvssV4_0

{'score': 6.8, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'}


Subscriptions

Siemens .net Client Library For Simatic S7 Webserver Api
cve-icon MITRE

Status: PUBLISHED

Assigner: siemens

Published:

Updated: 2026-10-14T13:47:18.848Z

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

Link: CVE-2026-85115

cve-icon Vulnrichment

Updated: 2026-10-14T13:47:04.942Z

cve-icon NVD

Status : Deferred

Published: 2026-10-13T10:17:20.780

Modified: 2026-10-15T16:03:48.883

Link: CVE-2026-85115

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-26T22:50:37Z

Weaknesses