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Vulnerability record · CVE-2024-13966 · published 27 May 2025

CVE-2024-13966: Zkteco biotime vulnerability

ZZkteco · Biotime

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").

6.9 CVSS 4.0 Medium EPSS 0.39% · top 69.8% CWE-1393 · CWE-1393
6.9CVSS 4.0 base score
0.39%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
5References
17 Jun 2026Last modified by NVD

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:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
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 Third Party Advisory
https://zkteco-store.ru/wp-content/uploads/2023/09/ZKBio-CVSecurity-6.0.0-User-Manual_EN-v1.0_20230616.pdf Product
https://www.zkteco.com/en/Security_Bulletinsibs/18 Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

7.5CVE-2023-38950ZKTeco BioTime iclock API path traversal allows unauthenticated file readThe iclock API in ZKTeco BioTime v8.5.5 is vulnerable to path traversal (CWE-22), letting an unauthenticated attacker read arbitrary files by supplyi…KEVEPSS 92%analysed9.8CVE-2023-38951Zkteco biotime path traversal vulnerabilityZKTeco BioTime 8.5.5 through 9.x before 9.0.1 (20240617.19506) allows authenticated attackers to create or overwrite arbitrary files on the server vi…EPSS 3.3%7.5CVE-2023-51142Zkteco biotime information exposure vulnerabilityAn issue in ZKTeco BioTime v.8.5.4 and before allows a remote attacker to obtain sensitive information.EPSS 0.73%7.5CVE-2023-38952Zkteco biotime vulnerabilityInsecure access control in ZKTeco BioTime through 9.0.1 allows authenticated attackers to escalate their privileges due to the fact that session ids …EPSS 2.7%7.5CVE-2023-38949Zkteco biotime vulnerabilityAn issue in a hidden API in ZKTeco BioTime v8.5.5 allows unauthenticated attackers to arbitrarily reset the Administrator password via a crafted web …EPSS 0.42%6.8CVE-2022-38803Zkteco biotime cross-site scripting vulnerabilityZkteco BioTime < 8.5.3 Build:20200816.447 is vulnerable to Incorrect Access Control via Leave, overtime, Manual log. An authenticated employee can re…EPSS 0.63%6.5CVE-2023-51141Zkteco biotime insecure direct object reference vulnerabilityAn issue in ZKTeko BioTime v.8.5.4 and before allows a remote attacker to obtain sensitive information via the Authentication & Authorization compone…EPSS 0.66%6.2CVE-2022-38802Zkteco biotime cross-site scripting vulnerabilityZkteco BioTime < 8.5.3 Build:20200816.447 is vulnerable to Incorrect Access Control via resign, private message, manual log, time interval, attshift,…EPSS 0.65%

Source: NIST National Vulnerability Database (record CVE-2024-13966), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.