Get a Demo

Let's Patch It!

Book a short call with one our specialists, we'll walk you through how Endor Patches work, and ask you a few questions about your environment (like your primary programming languages and repository management). We'll also send you an email right after you fill out the form, feel free to reply with any questions you have in advance!

CVE

CVE-2026-25939

FUXA Unauthenticated Remote Arbitrary Scheduler Write
Back to all
CVE

CVE-2026-25939

FUXA Unauthenticated Remote Arbitrary Scheduler Write

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.

Package Versions Affected

Package Version
patch Availability
No items found.

Automatically patch vulnerabilities without upgrading

Fix Without Upgrading
Detect compatible fix
Apply safe remediation
Fix with a single pull request

CVSS Version

Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.3
-
4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:H/SA:H/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
C
H
U
0
-
C
H
U
10
-
3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H

Related Resources

No items found.

References

https://github.com/frangoteam/FUXA/security/advisories/GHSA-c869-jx4c-q5fc, https://nvd.nist.gov/vuln/detail/CVE-2026-25939, https://github.com/frangoteam/FUXA/pull/2174, https://github.com/frangoteam/FUXA/commit/5782b35117a9bd14ffcb881f8dfb8c6680157d9b, https://github.com/frangoteam/FUXA/commit/aced6ad0b6089eea4e5cef51c0a88bf4f308d45f, https://github.com/frangoteam/FUXA, https://github.com/frangoteam/FUXA/releases/tag/v1.2.11

Severity

10

CVSS Score
0
10

Basic Information

Ecosystem
Base CVSS
10
EPSS Probability
0.00016%
EPSS Percentile
0.03573%
Introduced Version
1.2.8
Fix Available
1.2.11

Fix Critical Vulnerabilities Instantly

Secure your app without upgrading.
Fix Without Upgrading