CVE-2019-10925
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 · uneditedA vulnerability has been identified in SIMATIC MV400 family (All Versions < V7.0.6). An authenticated attacker could escalate privileges by sending specially crafted requests to the integrated webserver. The security vulnerability can be exploited by an attacker with network access to the device. Valid user credentials, but no user interaction are required. Successful exploitation compromises integrity and availability of the device. At the time of advisory publication no public exploitation of this security vulnerability was known.
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 · high confidenceThis is a privilege escalation vulnerability in the integrated webserver of SIMATIC MV400 family devices. An authenticated attacker with network access can send specially crafted HTTP requests to escalate privileges beyond their assigned user role, compromising device integrity and availability.
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 dataall versionsall versionsCVSS 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
- None
- Integrity
- High
- Availability
- Low
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
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 the device modelAccess the device web interface or use network discovery to confirm the exact model number (SIMATIC MV420 or MV440). Check the device information page or SNMP/sysinfo response for the model designation.Affected if The device is a Siemens SIMATIC MV420 or SIMATIC MV440 family device.
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Check the installed firmware versionLog into the device web interface and navigate to the System Information or About page to view the firmware version. Alternatively, query the device via SNMP or the Siemens PRONETA tool.Affected if The firmware version is any version prior to V7.0.6 (note: all known versions are affected).
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Verify the integrated webserver is enabledCheck the device configuration settings for the webserver status. Look for settings named 'Web Server', 'HTTP/HTTPS Server', or 'Remote Access' in the device administration panel.Affected if The integrated webserver is enabled and accessible.
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Confirm network accessibility to the web interfacePerform a port scan (e.g., nmap) against the device IP on ports 80 and 443 to determine if the HTTP/HTTPS interfaces are exposed. Check network segmentation and firewall rules.Affected if Ports 80 or 443 are open and reachable from a network segment accessible to authenticated users or potential attackers.
You are affected if your device is a SIMATIC MV420 or MV440 with the webserver enabled and accessible, regardless of firmware version (all versions are vulnerable).
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 dataUpgrade SIMATIC MV400 devices to firmware version V7.0.6 or later. If immediate patching is not feasible, implement network segmentation to restrict access to the web interface and enforce strong credential policies.
- Consultation6.0 h
- Implementation4.0 h
- Testing8.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2019-10925 — 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-2019-10925 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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- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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