CVE-2026-8603

Name: CVE-2026-8603
Creator: NVD / NIST
Published: 2026-05-19T18:16:31.877+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.7/10EPSS 1.32%

Last modified Jun 17, 2026

CVE-2026-8603 is a high-severity vulnerability rated 8.7/10 on the CVSS scale. In ScadaBR version 1.2.0, an OS Command Injection vulnerability could allow an attacker to execute commands as root on the SCADA system.. EPSS estimates a 1.32% chance of exploitation in the next 30 days.

Description

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

Metrics

CVSS 3.1

9.8/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS 4.0

8.7/10

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/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

EPSS Probability

1.32%

67.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-78

Affected Software

Vendor	Product	Versions
Scadabr	Scadabr	1.2

References

https://www.cisa.gov/news-events/ics-advisories/icsa-26-139-03Third Party Advisory, US Government Resource

Timeline

Published: May 19, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is 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.

How severe is CVE-2026-8603?

CVE-2026-8603 has a CVSS score of 8.7/10 (HIGH severity). The EPSS model estimates a 1.32% probability of exploitation in the next 30 days.

How do I fix CVE-2026-8603?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-8603?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST