CVE•Published 2026-03-16•Modified 2026-06-08•1 article on news•7 live references•NVD data
CVE-2016-20026
Vulnerability data via NVD (ingested)
CVSS v3.1
9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS percentile
23
Exploit Prediction Scoring System · top 77% of all CVEs
Weaknesses (CWE)
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.
Timeline
Published 2026-03-16
Modified 2026-06-08
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
More intel sources (5)
Shodan report
vuln:CVE-2016-20026Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2016-20026Censys host search filtered to this CVE id.
grep.app
CVE-2016-20026Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2016-20026GitHub code search for direct mentions.
Google dork
"CVE-2016-20026" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.