CVE-2026-108796

Deferred Deferred - Pending Action

Authorization Bypass in ZKTeco BioTime Biometric Data

Publication date: 2026-10-12

Last updated on: 2026-10-16

Assigner: VulDB

Description

A flaw has been found in ZKTeco BioTime 9.5.6 Build 20260130.3206. This affects an unknown part of the file /iclock/finger_data/ of the component Biometric Data Endpoint. Executing a manipulation of the argument emp_code can lead to authorization bypass. The attack can be launched remotely. Upgrading to version 9.5.6 Build 3623 is able to mitigate this issue. You should upgrade the affected component.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-10-12

Last Modified

2026-10-16

Generated

2026-10-19

AI Q&A

2026-10-12

EPSS Evaluated

2026-10-18

NVD

CVE-2026-108796

EUVD

EUVD-2026-97167

Affected Vendors & Products

Vendor	Product	Version / Range
ZKTeco	BioTime	9.5.6 Build 20260130.3206

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-639	The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.
CWE-285	The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action.

Attack-Flow Graph

Executive Summary

This vulnerability is an authorization bypass flaw in ZKTeco BioTime 9.5.6 Build 20260130.3206. It exists in the Biometric Data Endpoint at the file path /iclock/finger_data/. The issue allows remote attackers to manipulate the emp_code argument to bypass authorization checks.

Detection Guidance

This vulnerability involves an authorization bypass in ZKTeco BioTime 9.5.6 via manipulation of the emp_code parameter in the /iclock/finger_data/ endpoint. To detect it, monitor network traffic for unusual requests to this endpoint with modified emp_code values. Check server logs for unauthorized access attempts or abnormal database queries related to biometric data.

Impact Analysis

An attacker could exploit this to gain unauthorized access to biometric data or perform actions without proper permissions. This may lead to data breaches, unauthorized modifications, or misuse of sensitive biometric information stored in the system.

Compliance Impact

This vulnerability could lead to non-compliance with GDPR and HIPAA due to unauthorized access to biometric data. GDPR requires strict protection of biometric data as a special category, while HIPAA mandates safeguards for protected health information. Exploitation may result in legal penalties and loss of trust.

Mitigation Strategies

Immediately restrict access to the /iclock/finger_data/ endpoint and validate all emp_code inputs to prevent authorization bypass. Update to the latest patched version of ZKTeco BioTime if available. Monitor network traffic for unusual requests targeting this path.

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