CVE-2021-39434
HIGHCVSS 7.5/10EPSS 0.53%
Last modified
CVE-2021-39434 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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.. EPSS estimates a 0.53% chance of exploitation in the next 30 days.
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.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Zkteco | Zktime | >= 10.0, <= 11.1.0 |
| Zkteco | Zktime | 11.1.0 |
References
- https://www.cnvd.org.cn/flaw/show/CNVD-2018-26041Third Party Advisory
- https://www.cnvd.org.cn/flaw/show/CNVD-2018-26041Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-39434?
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.
How severe is CVE-2021-39434?
CVE-2021-39434 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 0.53% probability of exploitation in the next 30 days.
How do I fix CVE-2021-39434?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2021-39434?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST