# CVE-2026-6284

## Summary

- **CVE ID:** CVE-2026-6284
- **Severity:** CRITICAL
- **CVSS Score:** 9.3 (CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N)
- **CWE:** CWE-521
- **Published:** Apr 17, 2026
- **Last Modified:** Apr 20, 2026

## Description

An attacker with network access to the PLC is able to brute force discover passwords to gain unauthorized access to systems and services. The limited password complexity and no password input limiters makes brute force password enumeration possible.

## Affected Products

- Horner Automation — Cscape (10.0)
- Horner Automation — XL7 PLC (15.60)
- Horner Automation — XL4 PLC (16.32.0)

## References

- [CNA](https://hornerautomation.com/cscape-software-free/cscape-software/)
- [CNA](https://www.cisa.gov/news-events/ics-advisories/icsa-26-106-02)
- [CNA](https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-106-02.json)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.45%
- **EPSS Percentile:** 37.8

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-11._