Bug 2571764 (CVE-2026-126722)

Summary: CVE-2026-126722 Rooxis RXR-12: Rooxis RXR-12: Remote root access via undocumented backdoor service
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: urgent Docs Contact:
Priority: urgent    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Rooxis RXR-12. An undocumented background service listens for a specific network activation packet encrypted with static cryptographic keys. A remote attacker can send this crafted packet to activate an administrative Telnet service configured with default credentials, granting unauthorized remote root access and full control over the device.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Description OSIDB Bzimport 2026-11-11 16:51:13 UTC
Rooxis RXR-12 Wi-Fi router contains an undocumented telnet backdoor daemon (/usr/bin/telnetd_startup) that, upon receipt of a precomputed AES-128-CBC magic packet using a firmware-wide static key and IV, enables telnet service with default credentials, providing remote root access. Firmware 20260813_c2169ea5 removes the UDP listener entirely, and users can update through their local web interface.