CVE-2026-25939: FUXA Unauthenticated Remote Arbitrary Scheduler Write

Severity: critical (CVSS 9.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 12.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-02-09 · updated 2026-06-17
Weakness: CWE-862

Description

FUXA is a web-based Process Visualization (SCADA/HMI/Dashboard) software. From 1.2.8 through version 1.2.10, an authorization bypass vulnerability in the FUXA allows an unauthenticated, remote attacker to create and modify arbitrary schedulers, exposing connected ICS/SCADA environments to follow-on actions. This has been patched in FUXA version 1.2.11.

Affected products

frangoteam FUXA: from 1.2.8 before 1.2.11 — fixed in 1.2.11

How to fix

Upgrade to a fixed version: frangoteam FUXA 1.2.11. Check the vendor advisory for mitigations.

References

https://github.com/frangoteam/FUXA/commit/5782b35117a9bd14ffcb881f8dfb8c6680157d9b
https://github.com/frangoteam/FUXA/releases/tag/v1.2.11
https://github.com/frangoteam/FUXA/security/advisories/GHSA-c869-jx4c-q5fc

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