CVE-2026-2331 (GCVE-0-2026-2331)

Vulnerability from cvelistv5 – Published: 2026-03-06 07:56 – Updated: 2026-03-09 21:04
VLAI
Title
CVE-2026-2331
Summary
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.
Severity
9.8 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-552 - Files or Directories Accessible to External Parties
Assigner
References
URL Tags
https://www.sick.com/psirt x_SICK PSIRT Security Advisories
https://www.sick.com/media/docs/9/19/719/special_… x_SICK Operating Guidelines
https://www.cisa.gov/resources-tools/resources/ic… x_ICS-CERT recommended practices on Industrial Security
https://www.first.org/cvss/calculator/3.1 x_CVSS v3.1 Calculator
https://www.sick.com/.well-known/csaf/white/2026/… x_The canonical URL.
https://www.sick.com/.well-known/csaf/white/2026/… vendor-advisory
Impacted products
Vendor Product Version
SICK AG SICK Lector85x Affected: 2.6.0 , ≤ 2.7.0 (custom)
Create a notification for this product.
SICK AG SICK Lector83x Affected: 2.6.0 , ≤ 2.7.0 (custom)
Create a notification for this product.
Show details on NVD website
To clipboard 

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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.