{"id":"CVE-2016-7621","url":"https://www.cyber-defence.io/tools/cve/CVE-2016-7621","generatedAt":"2026-10-29T00:16:41.149Z","title":"It allows local users to execute arbitrary code in a privileged context or cause a denial of service (use-after-free) via unspecified vectors.","description":"An issue was discovered in certain Apple products. iOS before 10.2 is affected. macOS before 10.12.2 is affected. watchOS before 3.1.3 is affected. The issue involves the \"Kernel\" component. It allows local users to execute arbitrary code in a privileged context or cause a denial of service (use-after-free) via unspecified vectors.","published":"2017-02-20T08:59:03.000Z","lastModified":"2026-06-17T00:53:22.000Z","status":"Modified","sourceIdentifier":"product-security@apple.com","cvss":{"version":"3.0","score":7.8,"severity":"HIGH","vector":"CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-416"],"affected":["apple/watchos","apple/iphone os","apple/mac os x"],"epss":{"score":0.01256,"percentile":0.69363,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":1,"verified":true,"firstPublished":"2016-12-22","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":40956,"kind":"exploit","title":"Apple macOS < 10.12.2 / iOS < 10.2 - '_kernelrpc_mach_port_insert_right_trap' Kernel Reference Count Leak / Use-After-Free","url":"https://www.exploit-db.com/exploits/40956","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/macos/local/40956.c","file":"exploits/macos/local/40956.c","published":"2016-12-22","added":"2016-12-22","updated":"2017-04-05","author":"Google Security Research","type":"local","platform":"macos","port":null,"verified":true,"codes":["CVE-2016-7621"],"tags":"Local","aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"https://bugs.chromium.org/p/project-zero/issues/detail?id=941"}]},"verdict":{"level":"urgent","text":"A public exploit is published in Exploit-DB (verified) and the impact is high, while EPSS rates exploitation at 1.3%. Anyone can run this; patch or mitigate before the next change window and check exposed instances for signs of use."},"changes":[],"references":[{"url":"http://www.securityfocus.com/bid/94905","tags":["Third Party Advisory","VDB Entry"],"source":"product-security@apple.com"},{"url":"http://www.securitytracker.com/id/1037469","source":"product-security@apple.com"},{"url":"https://support.apple.com/HT207422","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/HT207423","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/HT207487","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://www.exploit-db.com/exploits/40956/","source":"product-security@apple.com"},{"url":"http://www.securityfocus.com/bid/94905","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id/1037469","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/HT207422","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/HT207423","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/HT207487","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/40956/","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2016-7621","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}