CVE-2016-20026 - Vulnerability Analysis
CriticalCVSS: 9.8Last Updated: March 16, 2026
Published: March 16, 2026Updated: March 16, 2026Remote Exploitable
Overview
ZKTeco ZKBioSecurity 3.0 contains hardcoded credentials in the bundled Apache Tomcat server that allow unauthenticated attackers to access the manager application. Attackers can authenticate with hardcoded credentials stored in tomcat-users.xml to upload malicious WAR archives containing JSP applications and execute arbitrary code with SYSTEM privileges.
Severity & Score
Severity: Critical
CVSS Score: 9.8
References
- https://cxsecurity.com/issue/WLB-2016080266
- https://exchange.xforce.ibmcloud.com/vulnerabilities/116484
- https://packetstormsecurity.com/files/138567
- https://www.exploit-db.com/exploits/40324/
- https://www.vulncheck.com/advisories/zkteco-zkbiosecurity-hardcoded-credentials-remote-code-execution
- https://www.zeroscience.mk/en/vulnerabilities/ZSL-2016-5362.php
Related Resources
Details
- CVE ID
- CVE-2016-20026
- Severity
- Critical
- CVSS Score
- 9.8
- Status
- unconfirmed
CWE
- CWE-798
CVSS Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H