CVE-2026-8603
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedIn ScadaBR version 1.2.0, an OS Command Injection vulnerability could allow an attacker to execute commands as root on the SCADA system.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · moderate confidenceScadaBR 1.2.0 contains an OS Command Injection vulnerability that allows remote attackers to execute arbitrary operating system commands with root privileges. The vulnerability likely stems from improper input validation in a web-facing interface where user-supplied data is passed to system shell commands without sanitization.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data= 1.2CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify ScadaBR installation and versionLocate the ScadaBR installation directory or check the application's about/version page. Common locations include /opt/scadabr or the application's web interface (typically on ports 8080 or 8443). Look for a version manifest, about page, or startup logs that display the version number.Affected if The installed version is 1.2 or falls within the 1.2.x release line.
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Confirm the web interface is accessibleAttempt to access the ScadaBR web console via HTTP/HTTPS on the configured port. Verify the application is responding to requests.Affected if The web interface is reachable and responds, indicating the application is running and potentially exposed.
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Check for user input fields that trigger system commandsReview the ScadaBR web interface for features that accept user input and could invoke operating system commands, such as script execution, data point configuration, system diagnostics, or external program execution fields.Affected if Input fields exist that allow direct or indirect shell command execution without sufficient validation.
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Review application execution contextDetermine the user account under which the ScadaBR service runs (e.g., check service startup scripts, process list, or systemd/unit files). Identify if the process runs as root or a privileged user.Affected if ScadaBR executes as root or another highly privileged account, enabling the command injection to run with elevated privileges.
You are affected if ScadaBR version 1.2 is installed and running, the vulnerable input handling mechanism is accessible, and the application runs with elevated privileges.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
From vendor dataApply vendor patch immediately if available; otherwise, implement strict input validation and whitelist-based filtering on all user inputs that could reach system calls, and consider network segmentation to limit exposure of the SCADA interface.
- Consultation8.0 h
- Implementation16.0 h
- Testing12.0 h
- Review / QA8.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $12,352.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-8603 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-8603 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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