{"id":"CVE-2023-42917","url":"https://www.cyber-defence.io/tools/cve/CVE-2023-42917","generatedAt":"2026-10-31T10:24:10.383Z","title":"Apple Multiple Products WebKit Memory Corruption Vulnerability","description":"A memory corruption vulnerability was addressed with improved locking. This issue is fixed in iOS 17.1.2 and iPadOS 17.1.2, macOS Sonoma 14.1.2, Safari 17.1.2. Processing web content may lead to arbitrary code execution. Apple is aware of a report that this issue may have been exploited against versions of iOS before iOS 16.7.1.","published":"2023-11-30T23:15:07.000Z","lastModified":"2026-06-17T06:24:50.000Z","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-787"],"affected":["apple/safari","apple/ipados","apple/iphone os","apple/macos","debian/debian linux","fedoraproject/fedora","webkitgtk/webkitgtk\\+"],"epss":{"score":0.09295,"percentile":0.95362,"date":"2026-10-30","history":[]},"kev":{"listed":true,"dateAdded":"2023-12-04","dueDate":"2023-12-25","knownRansomwareCampaignUse":"Unknown","notes":"Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.\nhttps://support.apple.com/en-us/HT214031, https://support.apple.com/en-us/HT214032, https://support.apple.com/en-us/HT214033 ;  https://nvd.nist.gov/vuln/detail/CVE-2023-42917"},"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 25 December 2023). Treat as an emergency change: patch or isolate now, then hunt for prior compromise."},"changes":[],"references":[{"url":"http://seclists.org/fulldisclosure/2023/Dec/12","tags":["Mailing List","Third Party Advisory"],"source":"product-security@apple.com"},{"url":"http://seclists.org/fulldisclosure/2023/Dec/13","tags":["Mailing List","Third Party Advisory"],"source":"product-security@apple.com"},{"url":"http://seclists.org/fulldisclosure/2023/Dec/3","tags":["Mailing List","Third Party Advisory"],"source":"product-security@apple.com"},{"url":"http://seclists.org/fulldisclosure/2023/Dec/4","tags":["Mailing List","Third Party Advisory"],"source":"product-security@apple.com"},{"url":"http://seclists.org/fulldisclosure/2023/Dec/5","tags":["Mailing List","Third Party Advisory"],"source":"product-security@apple.com"},{"url":"http://seclists.org/fulldisclosure/2023/Dec/8","tags":["Mailing List","Third Party Advisory"],"source":"product-security@apple.com"},{"url":"http://seclists.org/fulldisclosure/2024/Jan/35","tags":["Mailing List","Third Party Advisory"],"source":"product-security@apple.com"},{"url":"http://www.openwall.com/lists/oss-security/2023/12/05/1","tags":["Mailing List","Third Party Advisory"],"source":"product-security@apple.com"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AD2KIHHCUBQC2YYH3FJWAHI5BG3QETOH/","tags":["Mailing List"],"source":"product-security@apple.com"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/P5LQS6VEI7VIZNC7QGQ62EOV45R5RJIR/","tags":["Mailing List"],"source":"product-security@apple.com"},{"url":"https://security.gentoo.org/glsa/202401-04","tags":["Third Party Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/en-us/HT214031","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/en-us/HT214032","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/en-us/HT214033","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/kb/HT214033","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/kb/HT214034","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/kb/HT214062","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://www.debian.org/security/2023/dsa-5575","tags":["Mailing List","Third Party Advisory"],"source":"product-security@apple.com"},{"url":"http://seclists.org/fulldisclosure/2023/Dec/12","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://seclists.org/fulldisclosure/2023/Dec/13","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://seclists.org/fulldisclosure/2023/Dec/3","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://seclists.org/fulldisclosure/2023/Dec/4","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://seclists.org/fulldisclosure/2023/Dec/5","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://seclists.org/fulldisclosure/2023/Dec/8","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://seclists.org/fulldisclosure/2024/Jan/35","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.openwall.com/lists/oss-security/2023/12/05/1","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AD2KIHHCUBQC2YYH3FJWAHI5BG3QETOH/","tags":["Mailing List"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/P5LQS6VEI7VIZNC7QGQ62EOV45R5RJIR/","tags":["Mailing List"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://security.gentoo.org/glsa/202401-04","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/en-us/HT214031","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/en-us/HT214032","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/en-us/HT214033","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/kb/HT214033","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/kb/HT214034","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/kb/HT214062","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.debian.org/security/2023/dsa-5575","tags":["Mailing List","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-42917","tags":["US Government Resource"],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2023-42917","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."}