{"id":"CVE-2022-22620","published":"2022-03-18T18:15:13Z","modified":"2026-06-17T04:28:41Z","title":"Apple iOS, iPadOS, and macOS Webkit Use-After-Free Vulnerability","vendor":"Apple","product":"iOS, iPadOS, and macOS","tier":"core","eol":null,"description":{"text":"A use after free issue was addressed with improved memory management. This issue is fixed in macOS Monterey 12.2.1, iOS 15.3.1 and iPadOS 15.3.1, Safari 15.3 (v. 16612.4.9.1.8 and 15612.4.9.1.8). Processing maliciously crafted web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been actively exploited..","provenance":"source","from":"NVD"},"summary":{"text":"A use-after-free flaw in WebKit, the browser engine shared across Apple's iOS, iPadOS, and macOS products, stems from a memory-management defect that was fixed in the affected releases. An attacker can achieve arbitrary code execution by getting a user to load maliciously crafted web content, which requires no prior authentication and no network position beyond delivering that content, but does require the user to interact with it.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T07:12:50Z"},"cvss":{"score":8.8,"severity":"HIGH","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","provenance":"source","from":"NVD"},"epss":{"score":0.16342,"percentile":0.96954,"date":"2026-10-29","provenance":"source"},"kev":{"dateAdded":"2022-02-11","dueDate":"2022-02-25","ransomware":false,"requiredAction":"Apply updates per vendor instructions.","notes":"https://nvd.nist.gov/vuln/detail/CVE-2022-22620","provenance":"source"},"vulncheckKev":{"dateAdded":"2022-02-10","exploitedFirstSeen":"2022-02-10","ransomware":false,"evidence":[{"url":"https://docs.google.com/spreadsheets/d/1lkNJ0uQwbeC1ZTRrxdtuPLCIl7mlUreoKfSIgajnSyY/edit","date":"2022-02-10"},{"url":"https://support.apple.com/kb/HT213091","date":"2022-02-10"},{"url":"https://support.apple.com/kb/HT213092","date":"2022-02-10"},{"url":"https://support.apple.com/kb/HT213093","date":"2022-02-10"},{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2022-02-11"},{"url":"https://raw.githubusercontent.com/blackorbird/APT_REPORT/master/summary/2023/360_APT_Annual_Research_Report_2022.pdf","date":"2023-01-17"}],"evidenceTotal":6,"provenance":"source"},"exploited":true,"otx":{"pulseCount":50,"pulses":[{"name":"Actively_Exploited_Kev | Oct 29, 2026","url":"https://otx.alienvault.com/pulse/6ae20c1db17e7057ae7d9ad1","created":"2026-10-28"},{"name":"Actively_Exploited_Kev | Oct 28, 2026","url":"https://otx.alienvault.com/pulse/6ae0ba7e0e2a97ff7b218819","created":"2026-10-27"},{"name":"Actively_Exploited_Kev | Oct 27, 2026","url":"https://otx.alienvault.com/pulse/6adf68b85c3e852f3c111d18","created":"2026-10-26"},{"name":"Actively_Exploited_Kev | Oct 24, 2026","url":"https://otx.alienvault.com/pulse/6adb740e397c3ad4799aa4cd","created":"2026-10-23"},{"name":"Actively_Exploited_Kev | Oct 23, 2026","url":"https://otx.alienvault.com/pulse/6ada236fcfba2dfa730ea482","created":"2026-10-22"},{"name":"Actively_Exploited_Kev | Oct 22, 2026","url":"https://otx.alienvault.com/pulse/6ad8d33a077cbb5cab524d80","created":"2026-10-21"},{"name":"Actively_Exploited_Kev | Oct 21, 2026","url":"https://otx.alienvault.com/pulse/6ad78130c4d1ac2be83a8b6d","created":"2026-10-20"},{"name":"Actively_Exploited_Kev | Oct 20, 2026","url":"https://otx.alienvault.com/pulse/6ad62f63c24a405a3423cc13","created":"2026-10-19"},{"name":"Actively_Exploited_Kev | Oct 19, 2026","url":"https://otx.alienvault.com/pulse/6ad4dda174e5797d0bd238b7","created":"2026-10-18"},{"name":"Actively_Exploited_Kev | Oct 18, 2026","url":"https://otx.alienvault.com/pulse/6ad38c22e1848f8189d1c121","created":"2026-10-17"}],"provenance":"machine"},"cwes":[{"id":"CWE-416","name":"Use After Free"}],"references":[{"url":"https://security.gentoo.org/glsa/202208-39","tags":["Third Party Advisory"]},{"url":"https://support.apple.com/en-us/HT213091","tags":["Release Notes","Vendor Advisory"]},{"url":"https://support.apple.com/en-us/HT213092","tags":["Release Notes","Vendor Advisory"]},{"url":"https://support.apple.com/en-us/HT213093","tags":["Release Notes","Vendor Advisory"]},{"url":"https://security.gentoo.org/glsa/202208-39","tags":["Third Party Advisory"]},{"url":"https://support.apple.com/en-us/HT213091","tags":["Release Notes","Vendor Advisory"]},{"url":"https://support.apple.com/en-us/HT213092","tags":["Release Notes","Vendor Advisory"]},{"url":"https://support.apple.com/en-us/HT213093","tags":["Release Notes","Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-22620","tags":["Third Party Advisory","US Government Resource"]}],"techniques":[{"id":"T1189","name":"Drive-by Compromise","tactics":["initial-access"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: Malicious web content triggers exploitation via browser","mappingType":"exploitation_technique","evidence":[{"from":"description","quote":"Processing maliciously crafted web content may lead to arbitrary code execution","start":196,"end":275}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"},{"id":"T1059","name":"Command and Scripting Interpreter","tactics":["execution"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: Successful exploitation yields arbitrary code execution","mappingType":"primary_impact","evidence":[{"from":"description","quote":"may lead to arbitrary code execution","start":239,"end":275}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2022-27765","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2022-27765","exploited":true,"exploitedSince":"2022-02-11","provenance":"source"},"exploits":[],"exploitSources":{"pocGithub":{"count":2,"skipped":0,"earliest":"2022-06-14","earliestUrl":"https://github.com/kmeps4/CVE-2022-22620","repos":[{"name":"springsec/CVE-2022-22620","url":"https://github.com/springsec/CVE-2022-22620","stars":6,"created":"2022-08-04"},{"name":"kmeps4/CVE-2022-22620","url":"https://github.com/kmeps4/CVE-2022-22620","stars":1,"created":"2022-06-14"}]},"first":{"date":"2022-06-14","source":"PoC-in-GitHub","url":"https://github.com/kmeps4/CVE-2022-22620"},"provenance":"source"},"exploitRefs":[],"flow":[{"stage":"exploitation","techniques":["T1189"],"provenance":"ai"},{"stage":"primary","techniques":["T1059"],"provenance":"ai"}],"timeline":[{"date":"2022-02-10","kind":"exploited-reported","label":"Exploitation first 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KEV"},{"name":"Recent KEV listing","points":0.0,"detail":"added 1722 days ago"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":19.39,"detail":"percentile 0.9695"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":5.0,"detail":"2 PoC-in-GitHub repos"},{"name":"Mentioned in OTX pulses","points":3.0,"detail":"50 pulses"},{"name":"CVSS severity","points":6.16,"detail":"base score 8.8"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]},"lineage":{"familyId":"fam-class-apple-ios-macos-cwe-416"}}