CVE-2026-8603Network attack vector

Root command execution by authenticated users

Published May 19, 2026 · Updated May 19, 2026

OS command injection in ScadaBR 1.2.0 allows remote authenticated users to execute arbitrary commands as root over the network. Public advisories do not disclose the affected endpoint, input, or command-building code. Low-privileged access is required by the CNA assessment; successful exploitation grants root-level control of the SCADA host.

CVSS severity8.7
High
EPSS probability1.32%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in ScadaBR 1.2.0 allows remote authenticated users to execute arbitrary commands as root over the network. Public advisories do not disclose the affected endpoint, input, or command-building code. Low-privileged access is required by the CNA assessment; successful exploitation grants root-level control of the SCADA host.

The record

CVE
CVE-2026-8603
Published
May 19, 2026
Updated
May 19, 2026
Vendor
ScadaBR
Product
ScadaBR
Classifications
CWE-78, T1059
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 19, 2026CVE publishedPublication date reported by the CVE source.
  2. May 19, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.2.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

ScadaBR · ScadaBRversion=1.2.0

Published CVSS scores

8.8CISACVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.7ICS-CERTCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
9.8NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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