{"cve":"CVE-2011-5053","nvd":{"published":"2012-01-06T20:55:01.233","modified":"2026-06-16T23:35:51.163","status":"Modified","description":"The Wi-Fi Protected Setup (WPS) protocol, when the \"external registrar\" authentication method is used, does not properly inform clients about failed PIN authentication, which makes it easier for remote attackers to discover the PIN value, and consequently discover the Wi-Fi network password or reconfigure an access point, by reading EAP-NACK messages.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-287"],"references":["http://code.google.com/p/reaver-wps/","http://sviehb.files.wordpress.com/2011/12/viehboeck_wps.pdf","http://sviehb.wordpress.com/2011/12/27/wi-fi-protected-setup-pin-brute-force-vulnerability/","http://tools.cisco.com/security/center/content/CiscoSecurityResponse/cisco-sr-20120111-wps","http://www.kb.cert.org/vuls/id/723755"],"products":["wi-fi:wifi_protected_setup_protocol"],"source":"nvd","synced_at":"2026-10-19T19:59:31.623151214+00:00"},"epss":{"cve":"CVE-2011-5053","score":0.03266,"percentile":0.88389,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}