Home/CVE/ZKTeco BioTime allows unauthenticated attackers to enumerate usernames and log in as any user with a password unchanged
CVE

CVE-2024-13966

ZKTeco BioTime allows unauthenticated attackers to enumerate usernames and log in as any user with a password unchanged

ZKTeco BioTime allows unauthenticated attackers to enumerate usernames and log in as any user with a password unchanged from the default value '123456'. Users should change their passwords (located under the Attendance Settings tab as "Self-Password").

HIGH · CVSS 7.3 EPSS 0.00629
Schedule remediation
  • SSVC automatable: yes - attacks can be scripted at scale
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-1393Use of Default Password
▤

Affected Products & Versions

1
zkteco biotime< 9.0.4
▣

Scoring & Timeline

7.3
HIGH · CVSS v3.1 · 9119a7d8-5eab-497f-8521-727c672e3725
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD27 May 2025 · 07:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
SSVC triage · cisa-vulnrichment
Exploitation
poc
Automatable
yes
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

1
cisa-csafcisa-csaf-csaf_files-IT-white-2025-va-25-148-01
🔗

References & Sources

5
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://krashconsulting.com/fury-of-fingers-biotime-rce/Third Party Advisory
https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2025/va-25-148-01.jsonThird Party Advisory
https://www.cve.org/CVERecord?id=CVE-2024-13966Third Party Advisory
https://zkteco-store.ru/wp-content/uploads/2023/09/ZKBio-CVSecurity-6.0.0-User-Manual_EN-v1.0_20230616.pdfProduct
https://www.zkteco.com/en/Security_Bulletinsibs/18Vendor Advisory
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