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CVE-2016-20026

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CVE-2016-20026

Published: Mar 15, 2026

Modified: Apr 7, 2026

PUBLISHED

CVSS v3.1

9.8

CRITICAL

Description

ZKTeco ZKBioSecurity 3.0 contains hardcoded credentials in the bundled Apache Tomcat server that allow unauthenticated attackers to access the manager application. Attackers can authenticate with hardcoded credentials stored in tomcat-users.xml to upload malicious WAR archives containing JSP applications and execute arbitrary code with SYSTEM privileges.

VendorProductVersions

ZKTeco Inc.

ZKTeco ZKBioSecurity

affected
3.0.1.0_R_230

Weaknesses (CWE)

CWE-798

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

References

Zero Science Lab Disclosure
third-party-advisory
CXSecurity
third-party-advisory
Reference
exploit

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