CVE•Published 2026-03-24•Modified 2026-09-10•1 article on news•5 live references•NVD data
CVE-2026-23920Zabbix · Zabbix
Vulnerability data via NVD (ingested)
CVSS v3.1
8.8
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS percentile
16
Exploit Prediction Scoring System · top 84% of all CVEs
Weaknesses (CWE)
Description
Host and event action script input is validated with a regex (set by the administrator), but the validation runs in multiline mode. If ^ and $ anchors are used in user input validation, an injected newline lets authenticated users bypass the check and inject shell commands.
Timeline
Published 2026-03-24
Modified 2026-09-10
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).
Shodan · vuln tag0 hosts
vuln:CVE-2026-23920Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Zabbix Zabbix"All exposed Zabbix Zabbix instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Zabbix"HTTP body or banner mentions "Zabbix" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2026-23920Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-23920Censys host search filtered to this CVE id.
grep.app
CVE-2026-23920Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-23920GitHub code search for direct mentions.
Google dork
"CVE-2026-23920" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-23920 on GitHub.