What’s Vulnerable › Vulnerabilities

CVE-2024-13966: ZKTeco BioTime default password

• Severity: high (CVSS 7.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-05-27 · updated 2026-06-17
• Weakness: CWE-1393

Description

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").

Affected products

• ZKTeco BioTime: before 9.0.4 — fixed in 9.0.4

How to fix

Upgrade to a fixed version: ZKTeco BioTime 9.0.4. Check the vendor advisory for mitigations.

References

• https://krashconsulting.com/fury-of-fingers-biotime-rce/
• https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2025/va-25-148-01.json
• https://www.cve.org/CVERecord?id=CVE-2024-13966
• https://zkteco-store.ru/wp-content/uploads/2023/09/ZKBio-CVSecurity-6.0.0-User-Manual_EN-v1.0_20230616.pdf
• https://www.zkteco.com/en/Security_Bulletinsibs/18

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