{"cve":"CVE-2011-4963","nvd":{"published":"2012-07-26T19:55:00.980","modified":"2026-06-16T23:35:44.060","status":"Modified","description":"nginx/Windows 1.3.x before 1.3.1 and 1.2.x before 1.2.1 allows remote attackers to bypass intended access restrictions and access restricted files via (1) a trailing . (dot) or (2) certain \"$index_allocation\" sequences in a request.","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["http://english.securitylab.ru/lab/PT-2012-06","http://mailman.nginx.org/pipermail/nginx-announce/2012/000086.html","http://nginx.org/en/security_advisories.html","http://english.securitylab.ru/lab/PT-2012-06","http://mailman.nginx.org/pipermail/nginx-announce/2012/000086.html"],"products":["f5:nginx"],"source":"nvd","synced_at":"2026-10-19T20:24:00.973572543+00:00"},"epss":{"cve":"CVE-2011-4963","score":0.05959,"percentile":0.93287,"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."]}