CVE-2017-16556
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 K7 Antivirus Premium before 15.1.0.53, user-controlled input can be used to allow local users to write to arbitrary memory locations.
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 confidenceK7 Antivirus Premium before version 15.1.0.53 contains a vulnerability allowing local users to write to arbitrary memory locations through user-controlled input. This represents a local privilege escalation or memory corruption issue in the antivirus software itself.
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< 15.1.0.53< 15.1.0308< 14.2.0137< 15.1.0297< 15.1.0324< 16.0.0131< 15.1.0324CVSS 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
- None
- Integrity
- High
- Availability
- None
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
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 installed K7 productOpen Control Panel > Programs and Features (or Settings > Apps on Windows 10/11) and look for any installed K7computing product such as K7 Antivirus Premium, K7 Endpoint, K7 Internet Security, K7 Total Security, or K7 Ultimate Security.Affected if No K7 product is listed in installed programs - not affected.
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Determine exact version numberIn Programs and Features, click on the K7 product name and view the version shown in the details pane, or right-click and select Properties to view the Version field in the Details tab.Affected if Version cannot be determined - further investigation needed.
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Compare Antivirus version to affected rangesIf K7 Antivirus is installed, compare your version to: < 15.1.0.53 or < 15.1.0308. Note the full version number including the second number group (e.g., 15.1.0.53 vs 15.1.0308).Affected if Version is below 15.1.0.53 or below 15.1.0308 - affected.
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Compare Endpoint version to affected rangeIf K7 Endpoint is installed, compare your version to < 14.2.0137.Affected if Version is below 14.2.0137 - affected.
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Compare Internet Security version to affected rangeIf K7 Internet Security is installed, compare your version to < 15.1.0297.Affected if Version is below 15.1.0297 - affected.
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Compare Total/Ultimate Security versions to affected rangesIf K7 Total Security or K7 Ultimate Security is installed, compare your version to: < 15.1.0324 or < 16.0.0131.Affected if Version is below 15.1.0324 or below 16.0.0131 - affected.
Your environment is affected only if a K7computing product is installed AND its version number falls below the specified threshold for that specific product.
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 data14.2.013715.1.0.5315.1.0297
Upgrade K7 Antivirus Premium to version 15.1.0.53 or later to address the arbitrary memory write vulnerability.
- Consultation1.0 h
- Implementation1.0 h
- Testing2.0 h
- Review / QA1.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2017-16556 — 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-2017-16556 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