Credential Storage Vulnerability in ZKTeco BioTime Software
CVE-2025-15128

6.9MEDIUM

Key Information:

Vendor

Zkteco

Status
Biotime
Vendor
CVE Published:
28 December 2025

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2025-15128?

A security flaw has been identified in the ZKTeco BioTime software, specifically affecting versions up to 9.0.3, 9.0.4, and 9.5.2. The issue arises from improper handling of encryption parameters related to credential storage within the /base/safe_setting/ directory of the Endpoint component. This vulnerability allows for the manipulation of arguments such as backup_encryption_password_decrypt and export_encryption_password_decrypt, potentially leading to the exposure and unprotected storage of sensitive credentials. Attackers can exploit this vulnerability remotely, heightening the risk if left unaddressed. The vendor was notified of this security issue, but there has been no response or remediation effort to date.

Affected Version(s)

BioTime 9.0.0

BioTime 9.0.1

BioTime 9.0.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2025-15128 - Proof of Concept

References

https://vuldb.com/?id.338506
vdb-entrytechnical-description
https://vuldb.com/?ctiid.338506
signaturepermissions-required
https://vuldb.com/?submit.711813
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

luca_irinel (VulDB User)
JSON
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CVE-2025-15128 : Credential Storage Vulnerability in ZKTeco BioTime Software