{"id":"CVE-2011-3427","aliases":["EUVD-2011-3390","GHSA-q64w-j52m-r9m5"],"status":"published","title":"The Data Security component in Apple iOS before 5 and Apple TV before 4.4 does not properly...","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.","severity":{"version":"2.0","score":2.6,"vector":"AV:N/AC:H/Au:N/C:P/I:N/A:N","level":"low","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.009,"percentile":0.59891,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-200"],"published":"2011-10-14T10:00:00Z","modified":"2026-06-16T23:33:16Z","products":[{"vendor":"apple","product":"apple_tv"},{"vendor":"apple","product":"iphone_os"}],"references":[{"url":"http://lists.apple.com/archives/Security-announce/2011//Oct/msg00001.html","tags":["vendor-advisory","x_refsource_APPLE","x_transferred","Vendor Advisory"]},{"url":"http://osvdb.org/76326","tags":["vdb-entry","x_refsource_OSVDB","x_transferred"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/70547","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://lists.apple.com/archives/security-announce/2013/Oct/msg00004.html","tags":["vendor-advisory","x_refsource_APPLE","x_transferred"]},{"url":"http://support.apple.com/kb/HT4999","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"http://support.apple.com/kb/HT5001","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"http://lists.apple.com/archives/Security-announce/2011//Oct/msg00002.html","tags":["vendor-advisory","x_refsource_APPLE","x_transferred","Vendor Advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2011-3427"},{"url":"https://github.com/advisories/GHSA-q64w-j52m-r9m5"}],"sources":{"cve":[{"id":"CVE-2011-3427","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.","status":"published","published":"2011-10-14T10:00:00Z","modified":"2024-08-06T23:37:47.571Z","updated_at":"2026-11-02T14:35:37.671707Z"}],"euvd":[{"id":"EUVD-2011-3390","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.","status":"published","published":"2011-10-14T10:00:00Z","modified":"2024-08-06T23:37:47Z","updated_at":"2026-11-03T01:39:51.405142Z"}],"ghsa":[{"id":"GHSA-q64w-j52m-r9m5","title":"The Data Security component in Apple iOS before 5 and Apple TV before 4.4 does not properly...","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.","status":"published","published":"2022-05-17T01:53:22Z","modified":"2023-02-03T05:06:06Z","cwes":["CWE-200"],"updated_at":"2026-11-02T14:53:50.761362Z"}],"nvd":[{"id":"CVE-2011-3427","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.","status":"published","published":"2011-10-14T10:55:10.683Z","modified":"2026-06-16T23:33:16.397Z","cvss":[{"version":"2.0","score":2.6,"vector":"AV:N/AC:H/Au:N/C:P/I:N/A:N","level":"low","assessor":"primary"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:02:10.769216Z"}]}}