CVE-2016-20024ZKTeco ZKTime.Net 3.0.1.6 Insecure File Permissions Privilege Escalation
Updated under an hour ago ()
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It affects ZKTeco Inc. ZKTeco ZKTime.Net. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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
- 9.8 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- CWE-538
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- VulnCheck
- NVD analysis
- Deferred
- Record last updated
- Jul 27, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
ZKTeco Inc. ZKTeco ZKTime.Net zkteco:zktime.net (from the name) | 3.0.1.6; 3.0.1.5 (160622); 3.0.1.1 (160216) | CNA record |
References
- https://www.zeroscience.mk/en/vulnerabilities/ZSL-2016-5360.phpthird-party-advisory
- https://cxsecurity.com/issue/WLB-2016080264third-party-advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/116487vdb-entry
- https://packetstormsecurity.com/files/138565exploit
- https://www.exploit-db.com/exploits/40322/exploit
- https://www.vulncheck.com/advisories/zkteco-zktime-net-insecure-file-permissions-privilege-escalationthird-party-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.