Is CVE-2026-63586 being exploited?

No public exploit is currently tracked.

How severe is CVE-2026-63586?

CVE-2026-63586 has a CVSS v3 severity of CRITICAL (9.8).

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CVE-2026-63586

Description

The web-based management interface uses a modified uhttpd server with CGI shell scripts. The HTTP Basic Authentication username, taken directly from the Authorization header without sanitization, is inserted into a shell command string executed via the system() function. By submitting a specially crafted username containing shell metacharacters, an unauthenticated attacker with network access to the device can escape the command context and execute arbitrary commands with root privileges.