CVE-2026-25752: FUXA Unauthenticated Remote Arbitrary Device Tag Write
Summary Description An authorization bypass vulnerability in FUXA allows an unauthenticated, remote attacker to modify device tags via WebSockets. This affects FUXA through version 1.2.9. This issue has been patched in FUXA version 1.2.10.
Impact This affects all deployments, including those with runtime.settings.secureEnabled set to true.
Exploitation allows an unauthenticated, remote attacker to bypass role-based access controls and overwrite arbitrary device tags or disable communication drivers, exposing connected ICS/SCADA environments to follow-on actions. This may allow an attacker to manipulate physical processes and disconnected devices from the HMI.
Patches This issue has been patched in FUXA version 1.2.10. Users are strongly encouraged to update to the latest available release.
Other sources
FUXA is a web-based Process Visualization (SCADA/HMI/Dashboard) software. An authorization bypass vulnerability in FUXA allows an unauthenticated, remote attacker to modify device tags via WebSockets. Exploitation allows an unauthenticated, remote attacker to bypass role-based access controls and overwrite arbitrary device tags or disable communication drivers, exposing connected ICS/SCADA environments to follow-on actions. This may allow an attacker to manipulate physical processes and disconnected devices from the HMI. This affects FUXA through version 1.2.9. This issue has been patched in FUXA version 1.2.10.
— MITRE
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-25752?
CVE-2026-25752 is considered a high-severity vulnerability due to its ability to allow unauthorized remote modification of device tags.
How do I fix CVE-2026-25752?
To fix CVE-2026-25752, update to FUXA version 1.2.10 or later.
Which versions of FUXA are affected by CVE-2026-25752?
FUXA versions up to and including 1.2.9 are affected by CVE-2026-25752.
Can CVE-2026-25752 be exploited without authentication?
Yes, CVE-2026-25752 can be exploited by unauthenticated attackers.
What is the impact of CVE-2026-25752 on FUXA users?
The impact of CVE-2026-25752 allows attackers to remotely alter device tags, leading to potential unauthorized control over devices.