{"cve":"CVE-2011-1409","nvd":{"published":"2011-06-24T20:55:02.967","modified":"2026-06-16T23:29:17.640","status":"Modified","description":"Frams's Fast File EXchange (F*EX, aka fex) 20100208, and possibly other versions before 20110610, allows remote attackers to bypass authentication and upload arbitrary files via a request that lacks an authentication ID.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-287"],"references":["http://fex.rus.uni-stuttgart.de/fex.html","http://secunia.com/advisories/44940","http://www.debian.org/security/2011/dsa-2259","http://www.securityfocus.com/bid/48239","https://exchange.xforce.ibmcloud.com/vulnerabilities/68005"],"products":["ulli_horlacher:fex"],"source":"nvd","synced_at":"2026-10-19T19:58:50.521460154+00:00"},"epss":{"cve":"CVE-2011-1409","score":0.02289,"percentile":0.832,"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."]}