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CVE-2026-2331

CRITICAL

9.8

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.

CVE Details

CVSS v3.1 Score9.8

SeverityCRITICAL

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published3/6/2026

Last Modified3/9/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-552

References

https://www.cisa.gov/resources-tools/resources/ics-recommended-practices(psirt@sick.de)

https://www.first.org/cvss/calculator/3.1(psirt@sick.de)

https://www.sick.com/.well-known/csaf/white/2026/sca-2026-0006.json(psirt@sick.de)

https://www.sick.com/.well-known/csaf/white/2026/sca-2026-0006.pdf(psirt@sick.de)

https://www.sick.com/media/docs/9/19/719/special_information_sick_operating_guidelines_cybersecurity_by_sick_en_im0106719.pdf(psirt@sick.de)

https://www.sick.com/psirt(psirt@sick.de)

IOC Correlations

No correlations recorded

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