CVE-2016-20025 - CVE House
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Status published High CVE-2016-20025

ZKTeco ZKAccess Professional 3.5.3 Privilege Escalation via Insecure Permissions

Vulnerability Description

ZKTeco ZKAccess Professional 3.5.3 contains an insecure file permissions vulnerability that allows authenticated users to escalate privileges by modifying executable files. Attackers can leverage the Modify permission granted to the Authenticated Users group to replace executable binaries with malicious code for privilege escalation.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • LiquidWorm as Gjoko Krstic of Zero Science Lab

Affected Vendor

ZKTeco Inc.

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Affected Software

ZKTeco ZKAccess Professional
Vulnerable Versions:
3.5.3 (Build 0005)

Timeline

Official Publish: March 15th, 2026
Last Modified: June 8th, 2026
Added to House: July 20th, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)