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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| SICK AGCNA (assigner) | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVDNVD · Awaiting Analysis | 3.1 | Critical9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.98% · top 38% of all CVEs (6 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: yes · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Weakness
Affected products
- affected 2.6.0 – ≤ 2.7.0
- affected 2.6.0 – ≤ 2.7.0
What to do
Solution: Users are strongly recommended to upgrade to release version 2.8.0.
References (6)
- https://www.sick.com/psirt (opens in a new tab)x_SICK PSIRT Security Advisories
- https://www.sick.com/media/docs/9/19/719/special_information_sick_operating_guidelines_cybersecurity_by_sick_en_im0106719.pdf (opens in a new tab)x_SICK Operating Guidelines
- https://www.cisa.gov/resources-tools/resources/ics-recommended-practices (opens in a new tab)x_ICS-CERT recommended practices on Industrial Security
- https://www.first.org/cvss/calculator/3.1 (opens in a new tab)x_CVSS v3.1 Calculator
- https://www.sick.com/.well-known/csaf/white/2026/sca-2026-0006.json (opens in a new tab)x_The canonical URL.
- https://www.sick.com/.well-known/csaf/white/2026/sca-2026-0006.pdf (opens in a new tab)vendor-advisory
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-2331)Record last updated .