CVE-2026-126722

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-126722", "assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b", "state": "PUBLISHED", "assignerShortName": "certcc", "dateReserved": "2026-11-11T16:34:46.220Z", "datePublished": "2026-11-11T16:41:42.039Z", "dateUpdated": "2026-11-11T16:41:42.039Z"}, "containers": {"cna": {"title": "CVE-2026-126722", "descriptions": [{"lang": "en", "value": "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."}], "source": {"discovery": "UNKNOWN"}, "affected": [{"vendor": "Rooxis", "product": "Rooxis RXR-12", "versions": [{"status": "affected", "version": "0", "lessThan": "20260813_c2169ea5", "versionType": "custom"}]}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')"}]}], "references": [{"url": "https://rooxis.com/firmware/SOP-ramips-mt7621-DGR7-ROOXIS-local-debug.bin"}, {"url": "https://lab.geodesy.phd/writeups/rooxis-router/"}], "x_generator": {"engine": "VINCE 4.0.2", "env": "prod", "origin": "https://cveawg.mitre.org/api/cve/CVE-2026-126722"}, "providerMetadata": {"orgId": "37e5125f-f79b-445b-8fad-9564f167944b", "shortName": "certcc", "dateUpdated": "2026-11-11T16:41:42.039Z"}}}}

{}

{"affected": [{"affectedData": [{"product": "Rooxis RXR-12", "vendor": "Rooxis", "versions": [{"lessThan": "20260813_c2169ea5", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "cret@cert.org"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "id": "CVE-2026-126722", "lastModified": "2026-11-12T19:22:01.433", "metrics": {}, "published": "2026-11-11T17:17:18.793", "references": [{"source": "cret@cert.org", "url": "https://lab.geodesy.phd/writeups/rooxis-router/"}, {"source": "cret@cert.org", "url": "https://rooxis.com/firmware/SOP-ramips-mt7621-DGR7-ROOXIS-local-debug.bin"}], "sourceIdentifier": "cret@cert.org", "vulnStatus": "Deferred"}

{}

{"created": "2026-11-12T18:45:07.293044+00:00", "title": "Undocumented Telnet Backdoor on Rooxis RXR-12 Router Allows Remote Root Access", "updated": "2026-11-12T18:45:07.293047+00:00", "vendors": [], "weaknesses": ["CWE-259", "CWE-749"]}