CVE-2015-1007
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 specially crafted configuration file could be used to cause a stack-based buffer overflow condition in the OPCTest.exe, which may allow remote code execution on Opto 22 PAC Project Professional versions prior to R9.4008, PAC Project Basic versions prior to R9.4008, PAC Display Basic versions prior to R9.4g, PAC Display Professional versions prior to R9.4g, OptoOPCServer version R9.4c and prior that were installed by PAC Project installer, versions prior to R9.4008, and OptoDataLink version R9.4d and prior that were installed by PAC Project installer, versions prior to R9.4008. Opto 22 suggests upgrading to the new product version as soon as possible.
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 stack-based buffer overflow vulnerability exists in OPCTest.exe within Opto 22 PAC Project software. The flaw is triggered when processing a specially crafted configuration file, potentially allowing remote code execution.
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<= r9.4d<= r9.4c< r9.4g< r9.4008CVSS 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
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:L/AC:L/PR:N/UI:R/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 Opto 22 PAC Project software is installedOpen Windows Control Panel, go to Programs and Features (or Add/Remove Programs), and look for Opto 22 products such as Optodatalink, Optoopcserver, Pac Display, or Pac Project.Affected if Any of these Opto 22 products appear in the installed programs list.
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Determine the specific Opto 22 component versionIn Programs and Features, locate the Opto 22 product and note the version shown in the Version column. If not displayed there, right-click the program entry and select Properties, then check the Version tab.Affected if The displayed version matches one of the affected product lines (Optodatalink, Optoopcserver, Pac Display, or Pac Project).
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Locate the OPCTest.exe fileSearch the Program Files directories for OPCTest.exe. Common paths may include C:\Program Files\Opto22\ or subdirectories within the PAC Project installation folder.Affected if The OPCTest.exe file exists on the system.
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Verify OPCTest.exe version if foundRight-click on OPCTest.exe, select Properties, and check the Version tab for the File Version. Compare this version against the affected version ranges for the specific Opto 22 component.Affected if The file version is at or below the affected thresholds (r9.4d for Optodatalink, r9.4c for Optoopcserver, below r9.4g for Pac Display, below r9.4008 for Pac Project).
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Confirm the configuration file processing scenarioReview whether OPCTest.exe is configured or scheduled to process configuration files from untrusted sources. Check any automation scripts, scheduled tasks, or documentation that references OPCTest.exe usage.Affected if OPCTest.exe is used to process configuration files, especially from external or network sources.
The environment is affected if any Opto 22 PAC Project component (Optodatalink <= r9.4d, Optoopcserver <= r9.4c, Pac Display < r9.4g, or Pac Project < r9.4008) is installed and OPCTest.exe is present and used to process configuration files.
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 to PAC Project R9.4008 or later (or R9.4g for PAC Display products) as recommended by Opto 22.
- Consultation4.0 h
- Implementation4.0 h
- Testing8.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2015-1007 — 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-2015-1007 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
- No spam, self-promotion, credentials, or personal data