CVE-2025-46116 Overview
CVE-2025-46116 is an authenticated privilege escalation vulnerability affecting CommScope Ruckus Unleashed and Ruckus ZoneDirector wireless controllers. An authenticated attacker can call a management API endpoint to disable the passphrase requirement that normally protects a hidden command-line interface (CLI) command named !v54!. After the protection is removed, the attacker invokes !v54! to break out of the restricted administrative shell and obtain a root shell on the controller. The flaw is tracked under [CWE-250: Execution with Unnecessary Privileges] and impacts Ruckus Unleashed versions prior to 200.15.6.212.14 and 200.17.7.0.139, and ZoneDirector versions prior to 10.5.1.0.279.
Critical Impact
Successful exploitation yields a root shell on the wireless controller, granting full control over the managed access point fleet and the wireless network it serves.
Affected Products
- Ruckus Unleashed prior to 200.15.6.212.14 and 200.17.7.0.139
- Ruckus ZoneDirector prior to 10.5.1.0.279, including ZoneDirector 1200
- CommScope Ruckus access points running affected Unleashed firmware (R-series, T-series, H-series, M-series, C110, E510)
Discovery Timeline
- 2025-07-21 - CVE-2025-46116 published to the National Vulnerability Database (NVD)
- 2025-08-05 - Last updated in NVD database
Technical Details for CVE-2025-46116
Vulnerability Analysis
Ruckus Unleashed and ZoneDirector expose a restricted administrative CLI to authenticated operators. The CLI contains an undocumented command, !v54!, that drops the caller into an unrestricted root shell on the underlying Linux system. To gate access, the firmware requires a passphrase before !v54! will execute.
The vulnerability stems from a management API endpoint that can toggle the passphrase requirement. An authenticated user with low-privilege management credentials can issue an API call that disables this passphrase check. After the check is disabled, the same user can connect to the CLI, invoke !v54!, and receive a root shell without supplying any secret.
The result is a vertical privilege escalation from a restricted management role to full operating system control of the wireless controller. From that position, an attacker can modify firmware, persist implants, intercept client traffic on the managed wireless LAN (WLAN), and pivot deeper into the enterprise network.
Root Cause
The controller ships a debug or service backdoor command that runs with root privileges in violation of least-privilege principles, which aligns with [CWE-250]. The gating passphrase is treated as a runtime-toggleable setting rather than a static, hardware- or vendor-controlled secret. Because the toggle is reachable through the standard management API surface available to authenticated users, the protection collapses to a single API call.
Attack Vector
Exploitation requires network access to the controller's management interface and valid credentials. The attacker:
- Authenticates to the Ruckus management API.
- Submits the API request that clears or disables the !v54! passphrase requirement.
- Opens a CLI session to the controller.
- Issues !v54! and is dropped into a root shell on the appliance.
No memory corruption, no chained payload, and no user interaction is required. Technical details are documented in the Sector7 research write-up and Ruckus Wireless Security Bulletin #330.
Detection Methods for CVE-2025-46116
Indicators of Compromise
- CLI session logs that record execution of the literal string !v54! against the controller
- Management API requests that modify or clear the !v54! passphrase configuration outside of vendor-driven maintenance windows
- New root-owned processes, cron entries, or SSH authorized_keys modifications on the Unleashed master access point or ZoneDirector appliance
- Unexpected outbound connections originating from the controller's management IP
Detection Strategies
- Forward controller syslog and CLI audit events to a centralized analytics platform and alert on !v54! invocations.
- Inspect management API audit logs for calls that toggle hidden-command passphrase settings, and correlate with the originating account.
- Baseline normal administrative behavior per account, then alert on accounts that pivot from low-privilege API actions to CLI access in short time windows.
Monitoring Recommendations
- Restrict the management plane to a dedicated, segmented network and monitor all ingress for unauthorized authentication attempts.
- Track firmware integrity and configuration drift on every Unleashed master and ZoneDirector controller.
- Review administrative account inventories and enforce multi-factor authentication on every operator account that can reach the management API.
How to Mitigate CVE-2025-46116
Immediate Actions Required
- Upgrade Ruckus Unleashed to 200.15.6.212.14 or 200.17.7.0.139, and ZoneDirector to 10.5.1.0.279 or later.
- Rotate all administrative credentials on Ruckus controllers after patching, assuming prior exposure.
- Audit existing controller filesystems for unauthorized binaries, scheduled tasks, and SSH keys before returning systems to production.
- Restrict management interface reachability to trusted administrative subnets only.
Patch Information
CommScope has published fixed firmware in Ruckus Wireless Security Bulletin #330. Operators should download the Unleashed and ZoneDirector builds referenced in the bulletin and follow the standard staged upgrade procedure across the access point fleet.
Workarounds
- Block management API and CLI access from untrusted networks using upstream firewall or access control list (ACL) rules until firmware can be applied.
- Reduce the number of accounts with management API access and remove any shared or default administrative credentials.
- Disable remote administrative access entirely on controllers that can be managed locally during the patch window.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
