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Vulnerability record · CVE-2019-16896 · published 27 December 2019

CVE-2019-16896: K7computing k7 ultimate security link following vulnerability

K7computing · K7 Ultimate Security

In K7 Ultimate Security 16.0.0117, the module K7BKCExt.dll (aka the backup module) improperly validates the administrative privileges of the user, allowing an arbitrary file write via a symbolic link attack with file restoration functionality.

7.8 CVSS 3.1 High EPSS 0.40% · top 68.1% CWE-59 · Link following
7.8CVSS 3.1 base score, v2 2.1
0.40%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

In K7 Ultimate Security 16.0.0117, the module K7BKCExt.dll (aka the backup module) improperly validates the administrative privileges of the user, allowing an arbitrary file write via a symbolic link attack with file restoration functionality.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/NtRaiseHardError/Antimalware-Research/blob/master/K7%20Security/Local%20Privilege%20Escalation/v16.0. ExploitThird Party Advisory
https://support.k7computing.com/index.php?/selfhelp/categories/Vulnerability%20Report%20and%20Advisory/29 Vendor Advisory
https://github.com/NtRaiseHardError/Antimalware-Research/blob/master/K7%20Security/Local%20Privilege%20Escalation/v16.0. ExploitThird Party Advisory
https://support.k7computing.com/index.php?/selfhelp/categories/Vulnerability%20Report%20and%20Advisory/29 Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2019-16896), CISA KEV, FIRST EPSS (scores of 2026-09-28). This page is refreshed as NVD updates the record.