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CVE-2016-20024

CRITICAL Exploitation: PoC
9.8
CVSS 3.1
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.

Metadata

CVE ID
CVE-2016-20024
State
PUBLISHED
Assigner
VulnCheck
Reserved
2026-03-15 12:36 UTC
Published
2026-03-15 13:35 UTC
Last updated
2026-07-28 01:46 UTC
Primary CWE
CWE-538
Insertion of Sensitive Information into Externally-Accessibl…
Vendor / Product
ZKTeco Inc. / ZKTeco ZKTime.Net
Sources
cve.org  ·  NVD

Severity & Metrics

9.8 CRITICAL CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC — CISA Coordinator
Exploitation
PoC
Automatable
yes
Tech. Impact
total
Affected products (1)
VendorProductPlatformVersions
ZKTeco Inc. ZKTeco ZKTime.Net — 3.0.1.6, 3.0.1.5 (160622), 3.0.1.1 (160216)
Weakness (CWE)
CWESourceDescription
CWE-538 cna Insertion of Sensitive Information into Externally-Accessible File or Directory
CVSS scores (2)
ScoreSeverityVersionSourceVector
9.8 CRITICAL 3.1 cna CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.3 CRITICAL 4.0 cna 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
References (6)
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