CVE-2024-36424: K7RKScan.sys in K7 Ultimate Security before 17.0.2019 allows local users to cause a denial of service (BSOD) b

Q: How do I fix CVE-2024-36424?

k7 ultimate security: upgrade to 17.0.2019. Exact commands for each OS are on this page.

Q: Is CVE-2024-36424 being exploited?

CVE-2024-36424 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2024-36424 affect?

CVE-2024-36424 affects k7 ultimate security. Severity is medium (CVSS 5.5). K7RKScan.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.

Q: How urgent is CVE-2024-36424?

Priority 40/100. Public exploit reference

This month

MEDIUM 5.5UPGRADE

CVE-2024-36424 is a medium-severity flaw (CVSS 5.5) affecting k7 ultimate security. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

K7RKScan.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.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	5.5 (Medium)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	1.0% (top 38%)
CISA exploited list	No
Weakness	CWE-476
Published	2024-08-06
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: k7computing

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-08-06 15:15 UTCPublished CVE record published
2026-06-17 07:36 UTCUpdated Record last modified

k7computing k7 ultimate security UPGRADE

Affected: < 17.0.2019

Fixed in: 17.0.2019

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy k7-ultimate-security || rpm -q k7-ultimate-security || k7-ultimate-security --version

2. UPGRADE to 17.0.2019 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade k7-ultimate-security

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade k7-ultimate-security

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: K7 Ultimate Security K7RKScan.sys 17.0.2019 - Denial Of Service (DoS)

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2024-36424?

k7 ultimate security: upgrade to 17.0.2019. Exact commands for each OS are on this page.

Is CVE-2024-36424 being exploited?

CVE-2024-36424 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2024-36424 affect?

CVE-2024-36424 affects k7 ultimate security. Severity is medium (CVSS 5.5). K7RKScan.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.

How urgent is CVE-2024-36424?

Priority 40/100. Public exploit reference

Related CVEs

CVE-2025-67826 HIGH 7.7 DOWNGRADE An issue was discovered in K7 Ultimate Security 17.0.2045

References

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