RCE in Scadabr

CVE-2026-8603

In ScadaBR version 1.2.0, an OS Command Injection vulnerability could allow an attacker to execute commands as root on the SCADA system.

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.003 (57.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Scadabr — versions 1.2, 1.2.0

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

ics-cert@hq.dhs.gov (US Government Resource, Third Party Advisory, government-resource)

Frequently asked questions

What is CVE-2026-8603?: CVE-2026-8603 is a critical-severity vulnerability in Scadabr, classified under OS Command Injection. CVSS score: 9.8/10. Published 2026-05-19.
How severe is CVE-2026-8603?: Critical severity. CVSS v3 base score is 9.8 out of 10.