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CVE-2016-20026

CRITICAL

9.8

Description

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.

CVE Details

CVSS v3.1 Score9.8

SeverityCRITICAL

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionNONE

Published3/16/2026

Last Modified3/16/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-798

References

https://cxsecurity.com/issue/WLB-2016080266(disclosure@vulncheck.com)

https://exchange.xforce.ibmcloud.com/vulnerabilities/116484(disclosure@vulncheck.com)

https://packetstormsecurity.com/files/138567(disclosure@vulncheck.com)

https://www.exploit-db.com/exploits/40324/(disclosure@vulncheck.com)

https://www.vulncheck.com/advisories/zkteco-zkbiosecurity-hardcoded-credentials-remote-code-execution(disclosure@vulncheck.com)

https://www.zeroscience.mk/en/vulnerabilities/ZSL-2016-5362.php(disclosure@vulncheck.com)

IOC Correlations

No correlations recorded

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