CVE-2016-20026
CRITICAL EPSS 51.4%
Published Mar 16, 20263mo ago · Modified Jun 8, 20263w ago
9.3 CVSS 4.0
Published Mar 16, 2026 3mo ago
Last Modified Jun 8, 2026 3w ago
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.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/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:X/V:X/RE:X/U:X Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope X
Threat Intelligence
EPSS Exploit Probability
51.4% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-798 Use of Hard-coded Credentials Authentication
References 6
- cxsecurity.com https://cxsecurity.com/issue/WLB-2016080266
- exchange.xforce.ibmcloud.com https://exchange.xforce.ibmcloud.com/vulnerabilities/116484
- packetstormsecurity.com https://packetstormsecurity.com/files/138567
- exploit-db.com https://www.exploit-db.com/exploits/40324/
- vulncheck.com https://www.vulncheck.com/advisories/zkteco-zkbiosecurity-hardcoded-credentials-remote-code-execution
- zeroscience.mk https://www.zeroscience.mk/en/vulnerabilities/ZSL-2016-5362.php
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.