CVE-2018-8872
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 Schneider Electric Triconex Tricon MP model 3008 firmware versions 10.0-10.4, system calls read directly from memory addresses within the control program area without any verification. Manipulating this data could allow attacker data to be copied anywhere within memory.
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 confidenceThe Triconex 3008 firmware contains a memory safety vulnerability where system calls read directly from memory addresses within the control program area without any validation. This allows an attacker to manipulate pointers and copy attacker-controlled data to arbitrary memory locations, potentially enabling code execution or manipulation of control logic.
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>= 10.0, <= 10.4CVSS 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
- High
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:N/AC:H/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 Triconex 3008 firmware versionAccess the Triconex system management interface or use the vendor-provided diagnostic tool to retrieve the current firmware version installed on the Triconex Mp 3008 controller moduleAffected if The displayed firmware version falls within the range of 10.0 to 10.4 inclusive
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Confirm system is a Triconex Tricon Mp 3008Verify that the affected device is indeed a Triconex Tricon Mp 3008 controller module by checking the hardware identification through the system HMI or management consoleAffected if The device model matches Triconex Tricon Mp 3008 and the firmware version is 10.0-10.4
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Assess network accessibility to the Triconex systemReview network configuration to determine whether the Triconex controller is directly accessible from network segments that are not isolated or from external/untrusted networksAffected if The Triconex system is reachable from untrusted network segments without network segmentation or air-gapping in place
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Check for exposed system call interfacesExamine the Triconex configuration and communication settings to determine if external interfaces or system call APIs that interact with the control program memory area are enabledAffected if External or undocumented system call interfaces that interact with control program memory are exposed or enabled
A user is affected if the Triconex Mp 3008 firmware version is between 10.0 and 10.4 inclusive and the system is accessible from networks where an attacker could send malicious requests to manipulate memory pointers.
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 the vendor firmware update when available and isolate the Triconex system from untrusted networks using network segmentation and strict access controls to reduce attack surface.
- 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-2018-8872 — 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-2018-8872 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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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- 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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