{"id":"CVE-2021-47726","aliases":["EUVD-2025-206084","GHSA-f57r-vv46-fp7w"],"status":"published","title":"NuCom 11N Wireless Router 5.07.90 Privilege Escalation via Configuration Backup","description":"NuCom 11N Wireless Router 5.07.90 contains a privilege escalation vulnerability that allows non-privileged users to access administrative credentials through the configuration backup endpoint. Attackers can send a crafted HTTP GET request to the backup configuration page with a specific cookie to retrieve and decode the admin password in Base64 format.","severity":{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00303,"percentile":0.23252,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-522"],"published":"2025-12-31T18:39:09Z","modified":"2026-06-17T04:18:22Z","products":[{"vendor":"nucom","product":"nucom 11n wireless router"}],"references":[{"url":"https://www.exploit-db.com/exploits/49634","tags":["exploit"]},{"url":"https://www.nucom.es","tags":["product"]},{"url":"https://www.zeroscience.mk/en/vulnerabilities/ZSL-2021-5629.php","tags":["third-party-advisory"]},{"url":"https://www.vulncheck.com/advisories/nucom-n-wireless-router-privilege-escalation-via-configuration-backup","tags":["third-party-advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2021-47726"},{"url":"https://github.com/advisories/GHSA-f57r-vv46-fp7w"}],"sources":{"cve":[{"id":"CVE-2021-47726","title":"NuCom 11N Wireless Router 5.07.90 Privilege Escalation via Configuration Backup","description":"NuCom 11N Wireless Router 5.07.90 contains a privilege escalation vulnerability that allows non-privileged users to access administrative credentials through the configuration backup endpoint. Attackers can send a crafted HTTP GET request to the backup configuration page with a specific cookie to retrieve and decode the admin password in Base64 format.","status":"published","published":"2025-12-31T18:39:09.345Z","modified":"2026-01-02T20:08:07.895Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high","assessor":"cna"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-522"],"updated_at":"2026-11-02T14:32:55.905855Z"}],"euvd":[{"id":"EUVD-2025-206084","description":"NuCom 11N Wireless Router 5.07.90 contains a privilege escalation vulnerability that allows non-privileged users to access administrative credentials through the configuration backup endpoint. Attackers can send a crafted HTTP GET request to the backup configuration page with a specific cookie to retrieve and decode the admin password in Base64 format.","status":"published","published":"2025-12-31T18:39:09Z","modified":"2026-01-02T20:08:07Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","level":"high"}],"updated_at":"2026-11-02T19:48:56.284833Z"}],"ghsa":[{"id":"GHSA-f57r-vv46-fp7w","title":"NuCom 11N Wireless Router 5.07.90 contains a privilege escalation vulnerability that allows non...","description":"NuCom 11N Wireless Router 5.07.90 contains a privilege escalation vulnerability that allows non-privileged users to access administrative credentials through the configuration backup endpoint. Attackers can send a crafted HTTP GET request to the backup configuration page with a specific cookie to retrieve and decode the admin password in Base64 format.","status":"published","published":"2025-12-31T21:30:57Z","modified":"2025-12-31T21:31:05Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high"}],"cwes":["CWE-522"],"updated_at":"2026-11-02T15:05:25.370391Z"}],"nvd":[{"id":"CVE-2021-47726","description":"NuCom 11N Wireless Router 5.07.90 contains a privilege escalation vulnerability that allows non-privileged users to access administrative credentials through the configuration backup endpoint. Attackers can send a crafted HTTP GET request to the backup configuration page with a specific cookie to retrieve and decode the admin password in Base64 format.","status":"published","published":"2025-12-31T19:15:41.93Z","modified":"2026-06-17T04:18:22.203Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"high","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"high","assessor":"secondary"}],"cwes":["CWE-522"],"updated_at":"2026-11-02T14:07:09.005706Z"}]}}