High severity · published May 27, 2025
CVE-2024-13966
ZKTeco BioTime default password
7.3
CVSS
0.4%
EPSS
No
On KEV
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").
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 36% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
BI
Biotime · Zkteco
before 9.0.4 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-13966
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-13966
Third Party Advisory
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.json
Third Party Advisory
https://www.cve.org/CVERecord?id=CVE-2024-13966
Product
https://zkteco-store.ru/wp-content/uploads/2023/09/ZKBio-CVSecurity-6.0.0-User-Manual_EN-v1.0_20230616.pdf
Vendor Advisory
https://www.zkteco.com/en/Security_Bulletinsibs/18
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