{"id":"CVE-2022-42856","url":"https://www.cyber-defence.io/tools/cve/CVE-2022-42856","generatedAt":"2026-10-31T11:45:22.368Z","title":"Apple iOS Type Confusion Vulnerability","description":"A type confusion issue was addressed with improved state handling. This issue is fixed in Safari 16.2, tvOS 16.2, macOS Ventura 13.1, iOS 15.7.2 and iPadOS 15.7.2, iOS 16.1.2. 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 against versions of iOS released before iOS 15.1..","published":"2022-12-15T19:15:25.000Z","lastModified":"2026-06-17T05:05:29.000Z","status":"Analyzed","sourceIdentifier":"product-security@apple.com","cvss":{"version":"3.1","score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},"cwe":["CWE-843"],"affected":["apple/safari","apple/ipados","apple/iphone os","apple/macos","apple/tvos"],"epss":{"score":0.08523,"percentile":0.95039,"date":"2026-10-30","history":[]},"kev":{"listed":true,"dateAdded":"2022-12-14","dueDate":"2023-01-04","knownRansomwareCampaignUse":"Unknown","notes":"Apply updates per vendor instructions.\nhttps://support.apple.com/en-us/HT213516;  https://nvd.nist.gov/vuln/detail/CVE-2022-42856"},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"Known to be exploited in the wild (CISA KEV, CISA remediation deadline 4 January 2023). Treat as an emergency change: patch or isolate now, then hunt for prior compromise."},"changes":[],"references":[{"url":"http://seclists.org/fulldisclosure/2022/Dec/21","tags":["Mailing List","Third Party Advisory"],"source":"product-security@apple.com"},{"url":"http://seclists.org/fulldisclosure/2022/Dec/22","tags":["Mailing List","Third Party Advisory"],"source":"product-security@apple.com"},{"url":"http://seclists.org/fulldisclosure/2022/Dec/23","tags":["Mailing List","Third Party Advisory"],"source":"product-security@apple.com"},{"url":"http://seclists.org/fulldisclosure/2022/Dec/26","tags":["Mailing List","Third Party Advisory"],"source":"product-security@apple.com"},{"url":"http://seclists.org/fulldisclosure/2022/Dec/28","tags":["Mailing List","Third Party Advisory"],"source":"product-security@apple.com"},{"url":"http://www.openwall.com/lists/oss-security/2022/12/26/1","tags":["Mailing List","Third Party Advisory"],"source":"product-security@apple.com"},{"url":"https://security.gentoo.org/glsa/202305-32","tags":["Third Party Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/en-us/HT213516","tags":["Release Notes","Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/en-us/HT213531","tags":["Release Notes","Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/en-us/HT213532","tags":["Release Notes","Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/en-us/HT213535","tags":["Release Notes","Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/en-us/HT213537","tags":["Release Notes","Vendor Advisory"],"source":"product-security@apple.com"},{"url":"http://seclists.org/fulldisclosure/2022/Dec/21","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://seclists.org/fulldisclosure/2022/Dec/22","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://seclists.org/fulldisclosure/2022/Dec/23","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://seclists.org/fulldisclosure/2022/Dec/26","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://seclists.org/fulldisclosure/2022/Dec/28","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2022/12/26/1","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/202305-32","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/en-us/HT213516","tags":["Release Notes","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/en-us/HT213531","tags":["Release Notes","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/en-us/HT213532","tags":["Release Notes","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/en-us/HT213535","tags":["Release Notes","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/en-us/HT213537","tags":["Release Notes","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2022-42856","tags":["US Government Resource"],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2022-42856","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."}