CVE-2016-20024CWE-538

ZKTeco ZKTime.Net 3.0.1.6 Insecure File Permissions Privilege Escalation

Critical · published March 15, 2026

CVSS v4.0
9.3
EPSS
1%
Percentile
54.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
9.3 · CRITICAL
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00748 · 54.1th percentile
Weakness
CWE-538 · Insertion of Sensitive Information into Externally-Accessible File or Directory
Published
2026-03-15T13:35Z
EPSS history
Timeline
  • 15 MAR 13:35Z
    ZKTeco ZKTime.Net 3.0.1.6 Insecure File Permissions Privilege Escalation
    cvelistv5