CVE-2026-11841

CVE-2026-11841

Published Jul 28, 2026 CVSS 3.1 · 9.4 Critical EPSS < 1% KEV · Not listed
Description
An attacker may perform unauthenticated read and write operations on sensitive filesystem areas via the AppEngine Fileaccess over HTTP due to improper access restrictions. A critical filesystem directory was unintentionally exposed through the HTTP-based file access feature, allowing access without authentication. This includes device parameter files, enabling an attacker to read and modify application settings, including customer-defined passwords. Additionally, exposure of the custom application directory may allow execution of arbitrary Lua code within the sandboxed AppEngine environment.

Remediation

Vendor Solution

For InspectorP61x and InspectorP62x: Users are recommended to upgrade to version 5.4.0.


Vendor Workaround

Please make sure that only trusted entities have access to the device. Furthermore, you should apply the following General Security Measures when operating the product to mitigate the associated security risk. The collected resources ”SICK Operating Guidelines” and ”ICS-CERT recommended practices on Industrial Security” could help to implement the general security practices.

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Sick Ag
Sick Ag inspectorp61x
Sick Ag inspectorp62x
Sick Ag inspectorp63x
Sick Ag inspectorp64x
Sick Ag inspectorp65x
Vendors & Products Sick Ag
Sick Ag inspectorp61x
Sick Ag inspectorp62x
Sick Ag inspectorp63x
Sick Ag inspectorp64x
Sick Ag inspectorp65x
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description An attacker may perform unauthenticated read and write operations on sensitive filesystem areas via the AppEngine Fileaccess over HTTP due to improper access restrictions. A critical filesystem directory was unintentionally exposed through the HTTP-based file access feature, allowing access without authentication. This includes device parameter files, enabling an attacker to read and modify application settings, including customer-defined passwords. Additionally, exposure of the custom application directory may allow execution of arbitrary Lua code within the sandboxed AppEngine environment.
Title CVE-2026-11841
Weaknesses CWE-552
References
Metrics cvssV3_1

{'score': 9.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
SICK AG
Published
Updated
Aug 24, 2026, 1:54 PM
Reserved
Jun 10, 2026, 6:53 AM
Status
Deferred
Published
Jul 28, 2026, 10:16 AM
Modified
Sep 9, 2026, 3:52 PM