CVE-2025-46121

Severity: critical (CVSS 9.8 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2025-07-21 · updated 2026-06-17
Weakness: CWE-134

Description

An issue was discovered in CommScope Ruckus Unleashed prior to 200.15.6.212.14 and 200.17.7.0.139, where the functions `stamgr_cfg_adpt_addStaFavourite` and `stamgr_cfg_adpt_addStaIot` pass a client hostname directly to snprintf as the format string. A remote attacker can exploit this flaw either by sending a crafted request to the authenticated endpoint `/admin/_conf.jsp`, or without authentication and without direct network access to the controller by spoofing the MAC address of a favourite station and embedding malicious format specifiers in the DHCP hostname field, resulting in unauthenticated format-string processing and arbitrary code execution on the controller.

Affected products

Ruckuswireless Ruckus Unleashed: before 200.15.6.212.14; from 200.17 before 200.17.7.0.139 — fixed in 200.15.6.212.14, 200.17.7.0.139
Ruckuswireless Ruckus Zonedirector: before 10.5.1.0.279 — fixed in 10.5.1.0.279

How to fix

Upgrade to a fixed version: Ruckuswireless Ruckus Unleashed 200.15.6.212.14, 200.17.7.0.139; Ruckuswireless Ruckus Zonedirector 10.5.1.0.279. Check the vendor advisory for mitigations.

References

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