CVE-2016-20024
Privilege escalation
- Published16 Mar 2026
Description
ZKTeco ZKTime.Net 3.0.1.6 contains an insecure file permissions vulnerability that allows unprivileged users to escalate privileges by modifying executable files. Attackers can exploit world-writable permissions on the ZKTimeNet3.0 directory and its contents to replace executable files with malicious binaries for privilege escalation.
CVSS 3.1 breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HRemediation
No fixed version is recorded in the NVD data. Check the vendor advisory for the latest guidance.
References
- https://cxsecurity.com/issue/WLB-2016080264
- https://exchange.xforce.ibmcloud.com/vulnerabilities/116487
- https://packetstormsecurity.com/files/138565
- https://www.exploit-db.com/exploits/40322/
- https://www.vulncheck.com/advisories/zkteco-zktime-net-insecure-file-permissions-privilege-escalation
- https://www.zeroscience.mk/en/vulnerabilities/ZSL-2016-5360.php
Related CVEs
Recent high-severity vulnerabilities sharing a weakness type.
Frequently asked
Is CVE-2016-20024 being actively exploited?
CVE-2016-20024 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.73%.
How severe is CVE-2016-20024?
CVE-2016-20024 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.73% probability of exploitation.
How do I fix CVE-2016-20024?
Apply the vendor's patch or advisory guidance, then verify no affected versions remain across your devices.
How Secuno handles this
Secuno correlates vulnerabilities like CVE-2016-20024 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.
Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.