CVSS v3
9.9
CRITICAL
EPSS Score
0.7%
exploit probability
CISA KEV
No
known exploited
Exploitation
—
SSVC status
9router 0.4.59 (fixed in 0.4.60) contains a chain of vulnerabilities: a hardcoded default password (123456) that authenticates any fresh installation, a bypass of the LOCAL_ONLY network gate via a spoofed Host header, and unvalidated arguments passed to child_process.spawn() when registering MCP plugins. A remote, unauthenticated attacker can log in with the default credential, spoof the Host header to reach local-only routes, and register a malicious MCP plugin (e.g. node -e <payload>) to achie
9router 0.4.59 (fixed in 0.4.60) contains a chain of vulnerabilities: a hardcoded default password (123456) that authenticates any fresh installation, a bypass of the LOCAL_ONLY network gate via a spoofed Host header, and unvalidated arguments passed to child_process.spawn() when registering MCP plugins. A remote, unauthenticated attacker can log in with the default credential, spoof the Host header to reach local-only routes, and register a malicious MCP plugin (e.g. node -e <payload>) to achie
Active exploitation of CVE-2026-63732 has not been confirmed. The EPSS score is 0.7%, indicating the estimated probability of exploitation in the next 30 days.
CVE-2026-63732 has a CVSS v3 base score of 9.9 (CRITICAL severity), with vector string 3.1.
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