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CVE-2016-20025— ZKTeco ZKAccess Professional 3.5.3 Privilege Escalation via Insecure Permissions

Quick assessment

Affected
ZKTeco Inc. ZKTeco ZKAccess Professional
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

ZKTeco ZKAccess Professional是中国熵基科技（ZKTeco）公司的一个门禁管理软件。 ZKTeco ZKAccess Professional 3.5.3版本存在安全漏洞，该漏洞源于文件权限不安全，可能导致经验证用户通过修改可执行文件提升权限。

CVSS 8.8 · High EPSS 0.44% · P37

Affected Version Matrix 1

VendorProduct Version RangeStatus
ZKTeco Inc. ZKTeco ZKAccess Professional 3.5.3 (Build 0005) affected
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I. Basic Information for CVE-2016-20025

Vulnerability Information
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Vulnerability Title
ZKTeco ZKAccess Professional 3.5.3 Privilege Escalation via Insecure Permissions
Source: CVE Program / CVE List V5
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对外部实体的文件或目录可访问
Source: CVE Program / CVE List V5
Vulnerability Title
ZKTeco ZKAccess Professional 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
ZKTeco ZKAccess Professional是中国熵基科技（ZKTeco）公司的一个门禁管理软件。 ZKTeco ZKAccess Professional 3.5.3版本存在安全漏洞，该漏洞源于文件权限不安全，可能导致经验证用户通过修改可执行文件提升权限。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
ZKTeco Inc. ZKTeco ZKAccess Professional 3.5.3 (Build 0005) -

II. Public POCs for CVE-2016-20025

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III. Intelligence Information for CVE-2016-20025

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Vendor Advisories for CVE-2016-20025 (2)

Exploits & Public PoCs for CVE-2016-20025 (3)

Same Patch Batch · ZKTeco Inc. · 2026-03-15 · 9 CVEs total

CVE-2016-20026 9.8 CRITICAL ZKTeco ZKBioSecurity 3.0 Hardcoded Credentials Remote Code Execution
CVE-2016-20030 9.8 CRITICAL ZKTeco ZKBioSecurity 3.0 User Enumeration via authLoginAction
CVE-2016-20024 9.8 CRITICAL ZKTeco ZKTime.Net 3.0.1.6 Insecure File Permissions Privilege Escalation
CVE-2016-20032 7.2 HIGH ZKTeco ZKAccess Security System 5.3.1 Stored XSS
CVE-2016-20029 6.2 MEDIUM ZKTeco ZKBioSecurity 3.0 File Path Manipulation Vulnerability
CVE-2016-20027 6.1 MEDIUM ZKTeco ZKBioSecurity 3.0 Multiple Reflected XSS Vulnerabilities
CVE-2016-20031 5.5 MEDIUM ZKTeco ZKBioSecurity 3.0 Local Authorization Bypass via visLogin.jsp
CVE-2016-20028 4.3 MEDIUM ZKTeco ZKBioSecurity 3.0 Cross-Site Request Forgery Superadmin

IV. Related Vulnerabilities

Same vendor: ZKTeco Inc.
Same weakness: CWE-552

V. Comments for CVE-2016-20025

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