{"cve":"CVE-2011-3427","nvd":{"published":"2011-10-14T10:55:10.683","modified":"2026-06-16T23:33:16.397","status":"Modified","description":"The Data Security component in Apple iOS before 5 and Apple TV before 4.4 does not properly restrict use of the MD5 hash algorithm within X.509 certificates, which makes it easier for man-in-the-middle attackers to spoof servers or obtain sensitive information via a crafted certificate.","cvss_v4":null,"cvss_v3":null,"cwes":["CWE-200"],"references":["http://lists.apple.com/archives/Security-announce/2011//Oct/msg00001.html","http://lists.apple.com/archives/Security-announce/2011//Oct/msg00002.html","http://lists.apple.com/archives/security-announce/2013/Oct/msg00004.html","http://osvdb.org/76326","http://support.apple.com/kb/HT4999"],"products":["apple:apple_tv","apple:iphone_os"],"source":"nvd","synced_at":"2026-10-19T19:59:31.623151214+00:00"},"epss":{"cve":"CVE-2011-3427","score":0.009,"percentile":0.59679,"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."]}