CVE-2018-7523
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 Omron CX-Supervisor Versions 3.30 and prior, parsing malformed project files may cause a double free vulnerability.
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 confidenceA double-free vulnerability exists in Omron CX-Supervisor versions 3.30 and prior when parsing malformed project files. The vulnerability occurs during project file parsing where memory is freed twice, leading to memory corruption that could potentially be exploited for arbitrary code execution or denial of service.
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<= 3.30CVSS 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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- Low
- Integrity
- Low
- Availability
- Low
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/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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Locate CX-Supervisor installationCheck standard installation paths such as C:\Program Files\Omron\CX-Supervisor or C:\Program Files (x86)\Omron\CX-Supervisor, or search for the cxsupervisor.exe file on the systemAffected if CX-Supervisor is installed on the machine
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Identify installed versionRight-click on cxsupervisor.exe, select Properties, then view the Details tab to find the File Version. Alternatively, open CX-Supervisor and navigate to Help > About to view version informationAffected if Version displayed is 3.30 or any version number lower than 3.30
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Verify project file handling capabilityConfirm the installation includes project file parsing functionality by checking for .supervisor, .spv, or related project file extensions in the installation directory or associated file typesAffected if The software can open and parse project files, which is the standard operation mode for this application
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Check for trusted source policyReview system or organizational policies regarding the origin of project files opened by CX-Supervisor, as the vulnerability is triggered specifically when parsing malformed project filesAffected if Users open project files from untrusted or unknown sources
You are affected if CX-Supervisor version 3.30 or lower is installed and the software is used to open project files, particularly from untrusted sources.
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 dataRestrict the opening of project files to trusted sources only. Users should not open project files from untrusted or unknown origins, as the vulnerability is triggered during the parsing of malformed project files.
- Consultation6.0 h
- Implementation12.0 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-2018-7523 — 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-2018-7523 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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