CVE-2024-36424
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 · uneditedK7RKScan.sys in K7 Ultimate Security before 17.0.2019 allows local users to cause a denial of service (BSOD) because of a NULL pointer dereference.
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 confidenceK7RKScan.sys, a kernel-mode driver in K7 Ultimate Security antivirus, contains a NULL pointer dereference vulnerability that allows local authenticated users to trigger a Blue Screen of Death (BSOD), causing 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< 17.0.2019CVSS 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
- None
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/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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Confirm K7 Ultimate Security is installedCheck for K7 Ultimate Security in Add/Remove Programs (Windows) or look for K7 security product in installed programs listAffected if K7 Ultimate Security is present on the system
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Identify installed K7 Ultimate Security versionOpen Programs and Features, locate K7 Ultimate Security, and note the version number displayed in the Version columnAffected if Version is below 17.0.2019
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Locate K7RKScan.sys driver fileSearch for the file K7RKScan.sys in the K7 installation directory (typically C:\Program Files\K7 Computing\K7 Ultimate Security\ or similar)Affected if The driver file K7RKScan.sys exists in the K7 installation folder
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Check if K7RKScan.sys is loadedOpen an elevated command prompt and run 'driverquery /v | findstr K7RKScan' or check in Device Manager under Non-Plug and Play DriversAffected if The K7RKScan.sys kernel driver is loaded and running
The system is affected if K7 Ultimate Security version is below 17.0.2019 and the K7RKScan.sys driver is present or loaded on the system.
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.
dbcve · scoped17.0.2019
Upgrade K7 Ultimate Security to version 17.0.2019 or later to receive the patched kernel driver.
K7 Ultimate Security 17.0.2019 or later
- Navigate to the official K7 Computing website (www.k7computing.com) or their support portal (support.k7computing.com) to obtain the latest version of K7 Ultimate Security
- Ensure you have administrator privileges on the system
- Close any running instances of K7 Ultimate Security and any other applications
- Download the installer for K7 Ultimate Security version 17.0.2019 or later
- Run the downloaded installer and follow the on-screen prompts to complete the upgrade
- Restart the system when prompted to ensure the new kernel driver (K7RKScan.sys) is properly loaded
- After restart, verify the installed version is 17.0.2019 or higher by opening K7 Ultimate Security and checking the About or Version information
Generated from the published advisory — verify against the referenced sources before acting.
- 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-2024-36424 — 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-2024-36424 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