CVE-2026-2331 (GCVE-0-2026-2331)
Vulnerability from cvelistv5 – Published: 2026-03-06 07:56 – Updated: 2026-03-09 21:04
VLAI
EPSS
VEX
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)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-09 20:55 UTC
CWE
- CWE-552 - Files or Directories Accessible to External Parties
Assigner
References
6 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
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| SICK AG | SICK Lector85x |
Affected:
2.6.0 , ≤ 2.7.0
(custom)
|
|
| SICK AG | SICK Lector83x |
Affected:
2.6.0 , ≤ 2.7.0
(custom)
|
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
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.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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