What’s Vulnerable › Vulnerabilities

CVE-2026-24790: Welker OdorEyes EcoSystem Pulse Bypass System with XL4 Controller Missing Authentication for Critical Function

• Severity: high (CVSS 8.2 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-02-20 · updated 2026-06-17
• Weakness: CWE-306

Description

The underlying PLC of the device can be remotely influenced, without proper safeguards or authentication.

Affected products

• Welker OdorEyes EcoSystem Pulse Bypass System with XL4 Controller: all versions

References

• https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-050-04.json
• https://www.cisa.gov/news-events/ics-advisories/icsa-26-050-04
• https://www.welker.com/contact-us/welker-team

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