{"id":"CVE-2016-4656","aliases":["EUVD-2016-5642","GHSA-6x59-8x45-xrp8"],"status":"published","title":"The kernel in Apple iOS before 9.3.5 allows attackers to execute arbitrary code in a privileged...","description":"The kernel in Apple iOS before 9.3.5 allows attackers to execute arbitrary code in a privileged context or cause a denial of service (memory corruption) via a crafted app.","severity":{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-06","score":0.23626,"percentile":0.97819,"model":"v2026.06.15"},"facts":{"in_kev":true,"known_exploited":true,"public_exploit":true,"fix_available":false},"cwes":["CWE-264","CWE-787"],"published":"2016-08-25T21:00:00Z","modified":"2026-06-17T00:47:58Z","kev":{"date_added":"2022-05-24","due_date":"2022-06-14","required_action":"Apply updates per vendor instructions.","known_ransomware_use":"Unknown"},"exploitation":[{"source":"euvd","since":"2022-05-24"},{"source":"kev","since":"2022-05-24"}],"exploits":[{"source":"metasploit","id":"exploit/apple_ios/browser/webkit_trident","title":"WebKit not_number defineProperties UAF","type":"exploit","platform":"Apple_iOS","date":"2016-08-25","verified":true,"url":"https://www.rapid7.com/db/modules/exploit/apple_ios/browser/webkit_trident"},{"source":"exploitdb","id":"EDB-44836","title":"WebKit - not_number defineProperties UAF (Metasploit)","type":"remote","platform":"ios","date":"2018-06-05","verified":true,"url":"https://www.exploit-db.com/exploits/44836"}],"products":[{"vendor":"apple","product":"ios"},{"vendor":"apple","product":"iphone_os"}],"references":[{"url":"https://blog.lookout.com/blog/2016/08/25/trident-pegasus/","tags":["x_refsource_MISC","x_transferred","Broken Link"]},{"url":"https://www.exploit-db.com/exploits/44836/","tags":["exploit","x_refsource_EXPLOIT-DB","x_transferred","Exploit","Third Party Advisory","VDB Entry"]},{"url":"https://support.apple.com/HT207107","tags":["x_refsource_CONFIRM","x_transferred","Release Notes","Vendor Advisory"]},{"url":"http://lists.apple.com/archives/security-announce/2016/Aug/msg00000.html","tags":["vendor-advisory","x_refsource_APPLE","x_transferred","Broken Link","Mailing List","Vendor Advisory"]},{"url":"http://www.securityfocus.com/bid/92652","tags":["vdb-entry","x_refsource_BID","x_transferred","Broken Link","Third Party Advisory","VDB Entry"]},{"url":"http://www.securitytracker.com/id/1036694","tags":["vdb-entry","x_refsource_SECTRACK","x_transferred","Broken Link","Third Party Advisory","VDB Entry"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2016-4656","tags":["government-resource","US Government Resource"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-4656"},{"url":"https://blog.lookout.com/blog/2016/08/25/trident-pegasus"},{"url":"https://www.exploit-db.com/exploits/44836"},{"url":"https://github.com/advisories/GHSA-6x59-8x45-xrp8"}],"sources":{"cve":[{"id":"CVE-2016-4656","description":"The kernel in Apple iOS before 9.3.5 allows attackers to execute arbitrary code in a privileged context or cause a denial of service (memory corruption) via a crafted app.","status":"published","published":"2016-08-25T21:00:00Z","modified":"2025-10-21T23:55:50.185Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:33:34.815789Z"}],"euvd":[{"id":"EUVD-2016-5642","description":"The kernel in Apple iOS before 9.3.5 allows attackers to execute arbitrary code in a privileged context or cause a denial of service (memory corruption) via a crafted app.","status":"published","published":"2016-08-25T21:00:00Z","modified":"2025-10-21T23:55:50Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"exploited_since":"2022-05-24","updated_at":"2026-11-02T19:49:39.684828Z"}],"ghsa":[{"id":"GHSA-6x59-8x45-xrp8","title":"The kernel in Apple iOS before 9.3.5 allows attackers to execute arbitrary code in a privileged...","description":"The kernel in Apple iOS before 9.3.5 allows attackers to execute arbitrary code in a privileged context or cause a denial of service (memory corruption) via a crafted app.","status":"published","published":"2022-05-14T03:19:57Z","modified":"2025-10-22T00:31:17Z","cvss":[{"version":"3.0","score":7.8,"vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T15:04:03.556367Z"}],"kev":[{"id":"CVE-2016-4656","title":"Apple iOS Memory Corruption Vulnerability","description":"A memory corruption vulnerability in Apple iOS kernel allows attackers to execute code in a privileged context or cause a denial-of-service (DoS) via a crafted application.","cwes":["CWE-264"],"kev":{"date_added":"2022-05-24","due_date":"2022-06-14","required_action":"Apply updates per vendor instructions.","known_ransomware_use":"Unknown"},"updated_at":"2026-11-02T17:00:16.541131Z"}],"nvd":[{"id":"CVE-2016-4656","description":"The kernel in Apple iOS before 9.3.5 allows attackers to execute arbitrary code in a privileged context or cause a denial of service (memory corruption) via a crafted app.","status":"published","published":"2016-08-25T21:59:01.087Z","modified":"2026-06-17T00:47:58.547Z","cvss":[{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"3.1","score":7.8,"vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","level":"high","assessor":"secondary"},{"version":"2.0","score":9.3,"vector":"AV:N/AC:M/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"cwes":["CWE-787"],"updated_at":"2026-11-02T14:03:28.854267Z"}]}}