CVE-2026-24790

Welker OdorEyes EcoSystem Pulse Bypass System with XL4 Controller Missing Authentication for Critical Function

Published Feb 20, 2026 CVSS 3.1 · 8.2 High EPSS < 1% KEV · Not listed
Description
The underlying PLC of the device can be remotely influenced, without proper safeguards or authentication.

Remediation

Vendor Workaround

Welker did not respond to CISA's attempts at coordination. Users of Welker OdorEyes devices are encouraged to contact Welker and keep their systems up to date.

Tracking

Sign in to view the affected projects.

Advisories

No advisories available
History
Type Values Removed Values Added
First Time appeared Welker
Welker odoreyes Ecosystem Pulse Bypass System With Xl4 Controller
Vendors & Products Welker
Welker odoreyes Ecosystem Pulse Bypass System With Xl4 Controller
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
Description The underlying PLC of the device can be remotely influenced, without proper safeguards or authentication.
Title Welker OdorEyes EcoSystem Pulse Bypass System with XL4 Controller Missing Authentication for Critical Function
Weaknesses CWE-306
References
Metrics cvssV3_1

{'score': 8.2, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:L'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
icscert
Published
Updated
Feb 20, 2026, 6:59 PM
Reserved
Feb 5, 2026, 7:05 PM
Status
Deferred
Published
Feb 20, 2026, 5:25 PM
Modified
Jun 17, 2026, 10:23 AM