CVE-2025-15128

ZKTeco BioTime Endpoint safe_setting credentials storage

Published Dec 28, 2025 CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed

Description

A vulnerability was detected in ZKTeco BioTime up to 9.0.3/9.0.4/9.5.2. This affects an unknown part of the file /base/safe_setting/ of the component Endpoint. Performing a manipulation of the argument backup_encryption_password_decrypt/export_encryption_password_decrypt results in unprotected storage of credentials. Remote exploitation of the attack is possible. The exploit is now public and may be used. Upgrading to version 9.0.6 is able to mitigate this issue. It is recommended to upgrade the affected component. The vendor confirms: "The mainstream version ZKBioTime V9.0.6 has fixed this vulnerability. Please update to the latest version as soon as possible. For the Middle East version BioTime 9.5.X, you can contact the local technical support to obtain the fix package."

Affected Products

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions

ZKTeco

BioTime

affected

Version	Status	Constraints
`9.0.0`	affected	—
`9.0.1`	affected	—
`9.0.2`	affected	—
`9.0.3`	affected	—
`9.0.4`	affected	—
`9.5.0`	affected	—
`9.5.1`	affected	—
`9.5.2`	affected	—
`9.0.6`	unaffected	—

No data.

Vendor	Product	Versions
Zkteco	Biotime	—

Remediation

No solution or workaround provided in the CVE record

Tracking

Advisories

No advisories available

Metrics

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact None

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact None

Availability Impact None

User Interaction None

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact None

Availability Impact None

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.284% probability within 30 days)

Exploitation poc

Automatable yes

Technical Impact partial

References

Link	Providers
https://github.com/ionutluca888/IDOR-POC-ZKBio-Time/tree/main
https://vuldb.com/cve/CVE-2025-15128
https://vuldb.com/submit/711813
https://vuldb.com/vuln/338506
https://vuldb.com/vuln/338506/cti
https://www.zkteco.com/en/Security_Bulletinsibs/24

History

Jun 11, 2026 9:30 AM References updated View changes

Type	Values Removed	Values Added
References	https://vuldb.com/?ctiid.338506 https://vuldb.com/?id.338506 https://vuldb.com/?submit.711813

Jun 11, 2026 8:30 AM Description updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description	A vulnerability was detected in ZKTeco BioTime up to 9.0.3/9.0.4/9.5.2. This affects an unknown part of the file /base/safe_setting/ of the component Endpoint. Performing a manipulation of the argument backup_encryption_password_decrypt/export_encryption_password_decrypt results in unprotected storage of credentials. Remote exploitation of the attack is possible. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.	A vulnerability was detected in ZKTeco BioTime up to 9.0.3/9.0.4/9.5.2. This affects an unknown part of the file /base/safe_setting/ of the component Endpoint. Performing a manipulation of the argument backup_encryption_password_decrypt/export_encryption_password_decrypt results in unprotected storage of credentials. Remote exploitation of the attack is possible. The exploit is now public and may be used. Upgrading to version 9.0.6 is able to mitigate this issue. It is recommended to upgrade the affected component. The vendor confirms: "The mainstream version ZKBioTime V9.0.6 has fixed this vulnerability. Please update to the latest version as soon as possible. For the Middle East version BioTime 9.5.X, you can contact the local technical support to obtain the fix package."
References		https://vuldb.com/cve/CVE-2025-15128 https://vuldb.com/submit/711813 https://vuldb.com/vuln/338506 https://vuldb.com/vuln/338506/cti https://www.zkteco.com/en/Security_Bulletinsibs/24
Metrics	cvssV2_0 `{'score': 5, 'vector': 'AV:N/AC:L/Au:N/C:P/I:N/A:N/E:POC/RL:W/RC:UR'}` cvssV3_0 `{'score': 5.3, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:W/RC:R'}` cvssV3_1 `{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:W/RC:R'}`	cvssV2_0 `{'score': 5, 'vector': 'AV:N/AC:L/Au:N/C:P/I:N/A:N/E:POC/RL:OF/RC:C'}` cvssV3_0 `{'score': 5.3, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C'}` cvssV3_1 `{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:O/RC:C'}`

Feb 24, 2026 6:45 AM Description updated. Affected versions updated View changes

Type	Values Removed	Values Added
Description	A vulnerability was detected in ZKTeco BioTime up to 9.0.3/9.0.4/9.5.2. This affects an unknown part of the file /base/safe_setting/ of the component Endpoint. Performing manipulation of the argument backup_encryption_password_decrypt/export_encryption_password_decrypt results in unprotected storage of credentials. Remote exploitation of the attack is possible. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.	A vulnerability was detected in ZKTeco BioTime up to 9.0.3/9.0.4/9.5.2. This affects an unknown part of the file /base/safe_setting/ of the component Endpoint. Performing a manipulation of the argument backup_encryption_password_decrypt/export_encryption_password_decrypt results in unprotected storage of credentials. Remote exploitation of the attack is possible. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
CPEs		cpe:2.3:a:zkteco:biotime::::::::

Dec 29, 2025 11:15 PM First appearance in the feed. Affected vendors updated View changes

Type	Values Removed	Values Added
First Time appeared		Zkteco Zkteco biotime
Vendors & Products		Zkteco Zkteco biotime

Dec 29, 2025 4:15 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}`

Dec 28, 2025 8:45 AM Description updated. Title updated. Weaknesses updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description		A vulnerability was detected in ZKTeco BioTime up to 9.0.3/9.0.4/9.5.2. This affects an unknown part of the file /base/safe_setting/ of the component Endpoint. Performing manipulation of the argument backup_encryption_password_decrypt/export_encryption_password_decrypt results in unprotected storage of credentials. Remote exploitation of the attack is possible. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Title		ZKTeco BioTime Endpoint safe_setting credentials storage
Weaknesses		CWE-255 CWE-256
References		https://github.com/ionutluca888/IDOR-POC-ZKBio-Time/tree/main https://vuldb.com/?ctiid.338506 https://vuldb.com/?id.338506 https://vuldb.com/?submit.711813
Metrics		cvssV2_0 `{'score': 5, 'vector': 'AV:N/AC:L/Au:N/C:P/I:N/A:N/E:POC/RL:W/RC:UR'}` cvssV3_0 `{'score': 5.3, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:W/RC:R'}` cvssV3_1 `{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:P/RL:W/RC:R'}` cvssV4_0 `{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:P'}`