{"id":"CVE-2017-5521","published":"2017-01-17T09:59:00Z","modified":"2026-06-17T01:20:39Z","title":"NETGEAR Multiple Devices Exposure of Sensitive Information Vulnerability","vendor":"NETGEAR","product":"Multiple Devices","tier":"core","eol":null,"description":{"text":"An issue was discovered on NETGEAR R8500, R8300, R7000, R6400, R7300, R7100LG, R6300v2, WNDR3400v3, WNR3500Lv2, R6250, R6700, R6900, and R8000 devices. They are prone to password disclosure via simple crafted requests to the web management server. The bug is exploitable remotely if the remote management option is set, and can also be exploited given access to the router over LAN or WLAN. When trying to access the web panel, a user is asked to authenticate; if the authentication is canceled and password recovery is not enabled, the user is redirected to a page that exposes a password recovery token. If a user supplies the correct token to the page /passwordrecovered.cgi?id=TOKEN (and password recovery is not enabled), they will receive the admin password for the router. If password recovery is set the exploit will fail, as it will ask the user for the recovery questions that were previously set when enabling that feature. This is persistent (even after disabling the recovery option, the exploit will fail) because the router will ask for the security questions.","provenance":"source","from":"NVD"},"summary":{"text":"The flaw is an exposure of sensitive information in the web management server of multiple NETGEAR router models, including the R8500, R8300, R7000, R6400, R7300, R7100LG, R6300v2, WNDR3400v3, WNR3500Lv2, R6250, R6700, R6900 and R8000. An attacker can obtain the router's admin password through crafted requests to the web management server, either remotely when remote management is enabled or from anywhere on the LAN or WLAN, provided password recovery is not enabled and the attacker has or can obtain a valid recovery token presented through the web panel's authentication-cancel redirect.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T07:10:41Z"},"cvss":{"score":8.1,"severity":"HIGH","version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","provenance":"source","from":"NVD"},"epss":{"score":0.89353,"percentile":0.99782,"date":"2026-10-28","provenance":"source"},"kev":{"dateAdded":"2022-09-08","dueDate":"2022-09-29","ransomware":false,"requiredAction":"Apply updates per vendor instructions. If the affected device has since entered end-of-life, it should be disconnected if still in use.","notes":"https://kb.netgear.com/30632/Web-GUI-Password-Recovery-and-Exposure-Security-Vulnerability; https://nvd.nist.gov/vuln/detail/CVE-2017-5521","provenance":"source"},"vulncheckKev":{"dateAdded":"2018-07-13","exploitedFirstSeen":"2018-07-13","ransomware":false,"evidence":[{"url":"https://www.trendmicro.com/en_us/research/18/g/vpnfilter-affected-devices-still-riddled-with-19-vulnerabilities.html","date":"2018-07-13"},{"url":"https://www.researchgate.net/publication/348602660_An_analysis_of_the_use_of_CVEs_by_IoT_malware","date":"2020-12-01"},{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2022-09-08"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2025-05-08&host_type=src&vulnerability=cve-2017-5521","date":"2025-05-08"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2025-05-09&host_type=src&vulnerability=cve-2017-5521","date":"2025-05-09"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2025-05-10&host_type=src&vulnerability=cve-2017-5521","date":"2025-05-10"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2025-05-11&host_type=src&vulnerability=cve-2017-5521","date":"2025-05-11"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2025-05-12&host_type=src&vulnerability=cve-2017-5521","date":"2025-05-12"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2025-05-13&host_type=src&vulnerability=cve-2017-5521","date":"2025-05-13"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2025-05-16&host_type=src&vulnerability=cve-2017-5521","date":"2025-05-16"}],"evidenceTotal":263,"provenance":"source"},"exploited":true,"otx":{"pulseCount":50,"pulses":[{"name":"Actively_Exploited_Kev | Oct 29, 2026","url":"https://otx.alienvault.com/pulse/6ae20c1db17e7057ae7d9ad1","created":"2026-10-28"},{"name":"Actively_Exploited_Kev | Oct 28, 2026","url":"https://otx.alienvault.com/pulse/6ae0ba7e0e2a97ff7b218819","created":"2026-10-27"},{"name":"Actively_Exploited_Kev | Oct 27, 2026","url":"https://otx.alienvault.com/pulse/6adf68b85c3e852f3c111d18","created":"2026-10-26"},{"name":"Actively_Exploited_Kev | Oct 24, 2026","url":"https://otx.alienvault.com/pulse/6adb740e397c3ad4799aa4cd","created":"2026-10-23"},{"name":"Actively_Exploited_Kev | Oct 23, 2026","url":"https://otx.alienvault.com/pulse/6ada236fcfba2dfa730ea482","created":"2026-10-22"},{"name":"Actively_Exploited_Kev | Oct 22, 2026","url":"https://otx.alienvault.com/pulse/6ad8d33a077cbb5cab524d80","created":"2026-10-21"},{"name":"Actively_Exploited_Kev | Oct 21, 2026","url":"https://otx.alienvault.com/pulse/6ad78130c4d1ac2be83a8b6d","created":"2026-10-20"},{"name":"Actively_Exploited_Kev | Oct 20, 2026","url":"https://otx.alienvault.com/pulse/6ad62f63c24a405a3423cc13","created":"2026-10-19"},{"name":"Actively_Exploited_Kev | Oct 19, 2026","url":"https://otx.alienvault.com/pulse/6ad4dda174e5797d0bd238b7","created":"2026-10-18"},{"name":"Actively_Exploited_Kev | Oct 18, 2026","url":"https://otx.alienvault.com/pulse/6ad38c22e1848f8189d1c121","created":"2026-10-17"}],"provenance":"machine"},"cwes":[{"id":"CWE-200","name":"Exposure of Sensitive Information to an Unauthorized Actor"}],"references":[{"url":"http://kb.netgear.com/30632/Web-GUI-Password-Recovery-and-Exposure-Security-Vulnerability","tags":["Vendor Advisory"]},{"url":"http://www.securityfocus.com/bid/95457","tags":["Broken Link","Third Party Advisory","VDB Entry"]},{"url":"https://www.exploit-db.com/exploits/41205/","tags":["Exploit","Third Party Advisory","VDB Entry"]},{"url":"http://kb.netgear.com/30632/Web-GUI-Password-Recovery-and-Exposure-Security-Vulnerability","tags":["Vendor Advisory"]},{"url":"http://www.securityfocus.com/bid/95457","tags":["Broken Link","Third Party Advisory","VDB Entry"]},{"url":"https://www.exploit-db.com/exploits/41205/","tags":["Exploit","Third Party Advisory","VDB Entry"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-5521","tags":["US Government Resource"]}],"techniques":[{"id":"T1190","name":"Exploit Public-Facing Application","tactics":["initial-access"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: remote web management interface exploitation","mappingType":"exploitation_technique","evidence":[{"from":"description","quote":"is exploitable remotely if the remote management option is set","start":256,"end":318}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"},{"id":"T1552","name":"Unsecured Credentials","tactics":["credential-access"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: admin credentials disclosed from device","mappingType":"primary_impact","evidence":[{"from":"description","quote":"they will receive the admin password for the router","start":727,"end":778}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2017-14625","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2017-14625","exploited":true,"exploitedSince":"2022-09-08","provenance":"source"},"exploits":[{"id":41205,"url":"https://www.exploit-db.com/exploits/41205","title":"Netgear Routers - Password Disclosure","type":"webapps","platform":"hardware","date":"2017-01-30","verified":true,"provenance":"source"}],"exploitSources":{"exploitdb":{"count":1,"earliest":"2017-01-30"},"metasploit":[{"name":"NETGEAR 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