CVE•Published 2026-07-15•Modified 2026-07-16•1 article on news•5 live references•NVD data
CVE-2026-30618
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
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Weaknesses (CWE)
Description
xszyou Fay 4.3.1 contains a remote code execution vulnerability in its MCP STDIO server management and command execution handling. A remote attacker can access the publicly exposed MCP management interface and configure an MCP STDIO server with attacker-controlled commands and parameters, resulting in execution of arbitrary commands on the server. Successful exploitation allows arbitrary command execution within the context of the Fay service.
Timeline
Published 2026-07-15
Modified 2026-07-16
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-2026-30618Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-30618Censys host search filtered to this CVE id.
grep.app
CVE-2026-30618Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-30618GitHub code search for direct mentions.
Google dork
"CVE-2026-30618" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.