CRITICALCVSS 9.1Vulnerability

CVE-2026-25939

### Summary 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 vulnerability affects FUXA version 1.2.8 through version 1.2.10. This has been patched in FUXA version 1.2.11. ### Impact This affects all deployments, including those with `runtime.settings.secureEnabled` set to `true`. Exploitation allows an unauthenticated, remote attacker to automatically authenticate as guest and create, modify or delete schedules. These schedules can be configured to trigger immediately or cyclically, forcing connected devices to specific states or values, or executing existing scripts on the server. ### Patches This issue has been patched in FUXA version 1.2.11. Users are strongly encouraged to update to the latest available release.

Properties

Summary
FUXA Unauthenticated Remote Arbitrary Scheduler Write
Severity
CRITICAL
Cvss score
9.1
Epss score
0.00937
Retrieved at
2026-10-21T01:24:49+00:00
Ghsa published
2026-02-10T00:28:28Z
Source url
https://github.com/advisories/GHSA-c869-jx4c-q5fc
Ghsa updated
2026-02-10T02:56:59Z
Ghsa id
GHSA-c869-jx4c-q5fc
Last source
FIRST EPSS
Cve id
CVE-2026-25939
Cvss vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
In Signal since
initial import (Sep 2026)
Is ghsa only
false
Epss percentile
0.60252

Related Entities (2)

AFFECTS (1)

→[Software]npm/fuxa-server

HAS_WEAKNESS (1)

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CVE-2026-25939 (CVSS 9.1) — Ninja Signal Threat Intelligence | Ninja Signal