CVE-2020-10603
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 · uneditedWebAccess/NMS (versions prior to 3.0.2) does not properly sanitize user input and may allow an attacker to inject system commands remotely.
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 confidenceWebAccess/NMS versions prior to 3.0.2 contain a command injection vulnerability where user input is not properly sanitized, allowing remote authenticated attackers to inject and execute arbitrary system commands on the underlying operating system.
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< 3.0.2CVSS 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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/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 if WebAccess/NMS is installedCheck for the presence of Advantech WebAccess/NMS software on the system or network. Look for the web service running on common ports such as 80, 443, or 8080. Consult system inventory or running services documentation.Affected if WebAccess/NMS is found to be running on the system
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Determine the installed versionAccess the web management interface and look for the version information, typically found in the login page footer, About section, or help menus. If CLI access is available, consult product documentation for version retrieval commands.Affected if The version is displayed as lower than 3.0.2 or the version cannot be confirmed as 3.0.2 or higher
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Verify the web interface is network accessibleAttempt to reach the WebAccess/NMS web interface from a network perspective using a browser or curl command targeting the management URL.Affected if The management interface is accessible from network segments beyond the trusted internal network
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Confirm authentication is enabled and functionalVerify that the web management interface requires authentication. The vulnerability requires an authenticated session to exploit the command injection.Affected if Authentication is required but the login mechanism is reachable
A system is affected if Advantech WebAccess/NMS version less than 3.0.2 is installed and the web management interface is network accessible, regardless of authentication status since attackers may obtain valid credentials.
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 data3.0.2
Upgrade WebAccess/NMS to version 3.0.2 or later to obtain the patched version with proper input sanitization. If immediate upgrade is not possible, restrict network access to the management interface and implement additional input validation at network perimeter devices.
- Consultation3.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,408.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-10603 — 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-2020-10603 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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