{"id":"CVE-2011-3259","aliases":["EUVD-2011-3223","GHSA-2g22-24qq-rqw9"],"status":"published","title":"The kernel in Apple iOS before 5 and Apple TV before 4.4 does not properly recover memory...","description":"The kernel in Apple iOS before 5 and Apple TV before 4.4 does not properly recover memory allocated for incomplete TCP connections, which allows remote attackers to cause a denial of service (resource consumption) by making many connection attempts.","severity":{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.02439,"percentile":0.84404,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-399"],"published":"2011-10-14T10:00:00Z","modified":"2026-06-16T23:32:58Z","products":[{"vendor":"apple","product":"apple_tv"},{"vendor":"apple","product":"iphone_os"}],"references":[{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/70530","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"http://lists.apple.com/archives/Security-announce/2011//Oct/msg00001.html","tags":["vendor-advisory","x_refsource_APPLE","x_transferred","Vendor Advisory"]},{"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://www.securityfocus.com/bid/50087","tags":["vdb-entry","x_refsource_BID","x_transferred"]},{"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-2011-3259"},{"url":"https://github.com/advisories/GHSA-2g22-24qq-rqw9"}],"sources":{"cve":[{"id":"CVE-2011-3259","description":"The kernel in Apple iOS before 5 and Apple TV before 4.4 does not properly recover memory allocated for incomplete TCP connections, which allows remote attackers to cause a denial of service (resource consumption) by making many connection attempts.","status":"published","published":"2011-10-14T10:00:00Z","modified":"2024-08-06T23:29:56.591Z","updated_at":"2026-11-02T14:35:37.324501Z"}],"euvd":[{"id":"EUVD-2011-3223","description":"The kernel in Apple iOS before 5 and Apple TV before 4.4 does not properly recover memory allocated for incomplete TCP connections, which allows remote attackers to cause a denial of service (resource consumption) by making many connection attempts.","status":"published","published":"2011-10-14T10:00:00Z","modified":"2024-08-06T23:29:56Z","updated_at":"2026-11-03T01:39:52.582864Z"}],"ghsa":[{"id":"GHSA-2g22-24qq-rqw9","title":"The kernel in Apple iOS before 5 and Apple TV before 4.4 does not properly recover memory...","description":"The kernel in Apple iOS before 5 and Apple TV before 4.4 does not properly recover memory allocated for incomplete TCP connections, which allows remote attackers to cause a denial of service (resource consumption) by making many connection attempts.","status":"published","published":"2022-05-17T01:53:51Z","modified":"2023-02-03T05:06:07Z","updated_at":"2026-11-02T14:53:50.761362Z"}],"nvd":[{"id":"CVE-2011-3259","description":"The kernel in Apple iOS before 5 and Apple TV before 4.4 does not properly recover memory allocated for incomplete TCP connections, which allows remote attackers to cause a denial of service (resource consumption) by making many connection attempts.","status":"published","published":"2011-10-14T10:55:10.307Z","modified":"2026-06-16T23:32:58.863Z","cvss":[{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-399"],"updated_at":"2026-11-02T14:02:10.769216Z"}]}}