CVE-2018-7522
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, when a system call is made, registers are stored to a fixed memory location. Modifying the data in this location could allow attackers to gain supervisor-level access and control system states.
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 confidenceSchneider Electric Triconex Tricon MP model 3008 firmware versions 10.0-10.4 store registers to a fixed memory location during system calls. Attackers who can modify this memory region can escalate privileges to supervisor level and alter system states, potentially compromising the safety instrumented 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>= 10.0, <= 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
- Local
- Complexity
- Low
- Privileges
- High
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:L/AC:L/PR:H/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 the Triconex device modelAccess the Triconex system management interface or check device documentation to confirm the model is Tricon MP 3008Affected if The device is not a Tricon MP 3008 model, then this specific CVE does not apply
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Retrieve the installed firmware versionUse the Triconex system interface, command line interface, or system information screen to view the firmware version of the Tricon MP 3008Affected if Unable to determine firmware version - further investigation needed
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Compare firmware version against affected rangeCheck if the installed firmware version falls within 10.0 through 10.4Affected if Firmware version is between 10.0 and 10.4 inclusive - the device is affected by this vulnerability
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Assess privilege access exposureReview system access logs and network exposure to determine if untrusted actors could modify the fixed memory region used during system callsAffected if The device is network-accessible to untrusted users who could potentially modify the memory region
The environment is affected if the Triconex Tricon MP 3008 device is running firmware version 10.0 through 10.4 and could be accessed by actors capable of modifying the fixed memory region during system calls.
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-supplied firmware update from Schneider Electric; if unavailable, implement network segmentation and access controls to limit exposure to the Triconex device until a patch is released.
- Consultation6.0 h
- Implementation12.0 h
- Testing12.0 h
- Review / QA6.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $9,984.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2018-7522 — 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-2018-7522 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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