CVE-2021-39434
ZKTeco
- Published
- 6 December 2022
- Last modified
- 17 June 2026
- CVSS
- 7.5 v3.1
- Severity
- high
- EPSS
- 0.5% (43th pct)
- CISA KEV
- Not listed
- NVD status
- Modified
- Weaknesses
- CWE-521
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Description
A default username and password for an administrator account was discovered in ZKTeco ZKTime 10.0 through 11.1.0, builds 20180901, 20190510.1, 20200309.3, 20200930, 20201231, and 20210220.
Exploitation
Not listed in the CISA Known Exploited Vulnerabilities catalogue as of 2026.09.04. That is an absence of confirmed public exploitation, not evidence that exploitation has not occurred. EPSS models a 0.5% probability of exploitation activity in the next 30 days.
Affected products
| Product | Vendor | Type | Versions named |
|---|---|---|---|
| Zktime | ZKTeco | unknown | 11.1.0, <= 11.1.0, >= 10.0 |
References
- https://www.cnvd.org.cn/flaw/show/CNVD-2018-26041 third-party
- https://www.cnvd.org.cn/flaw/show/CNVD-2018-26041 third-party
Record assembled from NVD, CISA KEV 2026.09.04 and FIRST EPSS 2026-09-04. Affected products are those NVD's CPE configuration names that fall inside this site's scope; a CVE may affect products outside it.