{"id":"CVE-2023-42916","published":"2023-11-30T23:15:07Z","modified":"2026-06-17T06:24:49Z","title":"Apple Multiple Products WebKit Out-of-Bounds Read Vulnerability","vendor":"Apple","product":"Multiple Products","tier":"core","eol":null,"description":{"text":"An out-of-bounds read was addressed with improved input validation. 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 disclose sensitive information. Apple is aware of a report that this issue may have been exploited against versions of iOS before iOS 16.7.1.","provenance":"source","from":"NVD"},"summary":{"text":"An out-of-bounds read in the WebKit component of multiple Apple products (including iOS, iPadOS, macOS Sonoma and Safari) allows sensitive information to be disclosed when web content is processed. Exploitation requires no privileges or authentication over the network, but needs the user to interact with malicious web content, such as visiting a page.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T07:13:51Z"},"cvss":{"score":6.5,"severity":"MEDIUM","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N","provenance":"source","from":"NVD"},"epss":{"score":0.17823,"percentile":0.97162,"date":"2026-10-29","provenance":"source"},"kev":{"dateAdded":"2023-12-04","dueDate":"2023-12-25","ransomware":false,"requiredAction":"Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.","notes":"https://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-2023-42916","provenance":"source"},"vulncheckKev":{"dateAdded":"2023-11-30","exploitedFirstSeen":"2023-11-30","ransomware":false,"evidence":[{"url":"https://docs.google.com/spreadsheets/d/1lkNJ0uQwbeC1ZTRrxdtuPLCIl7mlUreoKfSIgajnSyY/edit","date":"2023-11-30"},{"url":"https://support.apple.com/en-us/HT214031","date":"2023-11-30"},{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2023-12-04"},{"url":"https://isc.sans.edu/diary/Apple%20Updates%20Everything%20-%20New%200%20Day%20in%20WebKit/30578","date":"2024-01-22"},{"url":"https://ti.qianxin.com/uploads/2024/02/02/dcc93e586f9028c68e7ab34c3326ff31.pdf","date":"2024-02-02"},{"url":"https://storage.googleapis.com/gweb-uniblog-publish-prod/documents/Buying_Spying_-_Insights_into_Commercial_Surveillance_Vendors.pdf","date":"2024-02-06"}],"evidenceTotal":6,"provenance":"source"},"exploited":true,"otx":{"pulseCount":50,"pulses":[{"name":"Actively_Exploited_Kev | Oct 30, 2026","url":"https://otx.alienvault.com/pulse/6ae35d889ea92b4ce19c2680","created":"2026-10-29"},{"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"}],"provenance":"machine"},"cwes":[{"id":"CWE-125","name":"Out-of-bounds Read"}],"references":[{"url":"http://seclists.org/fulldisclosure/2023/Dec/12","tags":["Mailing List","Third Party Advisory"]},{"url":"http://seclists.org/fulldisclosure/2023/Dec/13","tags":["Mailing List","Third Party Advisory"]},{"url":"http://seclists.org/fulldisclosure/2023/Dec/3","tags":["Mailing List","Third Party Advisory"]},{"url":"http://seclists.org/fulldisclosure/2023/Dec/4","tags":["Mailing List","Third Party Advisory"]},{"url":"http://seclists.org/fulldisclosure/2023/Dec/5","tags":["Mailing List","Third Party 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Advisory"]},{"url":"https://support.apple.com/kb/HT214033","tags":["Vendor Advisory"]},{"url":"https://support.apple.com/kb/HT214034","tags":["Vendor Advisory"]},{"url":"https://support.apple.com/kb/HT214062","tags":["Vendor Advisory"]},{"url":"https://www.debian.org/security/2023/dsa-5575","tags":["Mailing List"]},{"url":"http://seclists.org/fulldisclosure/2023/Dec/12","tags":["Mailing List","Third Party Advisory"]},{"url":"http://seclists.org/fulldisclosure/2023/Dec/13","tags":["Mailing List","Third Party Advisory"]},{"url":"http://seclists.org/fulldisclosure/2023/Dec/3","tags":["Mailing List","Third Party Advisory"]},{"url":"http://seclists.org/fulldisclosure/2023/Dec/4","tags":["Mailing List","Third Party Advisory"]},{"url":"http://seclists.org/fulldisclosure/2023/Dec/5","tags":["Mailing List","Third Party Advisory"]},{"url":"http://seclists.org/fulldisclosure/2023/Dec/8","tags":["Mailing List","Third Party Advisory"]},{"url":"http://seclists.org/fulldisclosure/2024/Jan/35","tags":["Mailing List","Third Party Advisory"]},{"url":"http://www.openwall.com/lists/oss-security/2023/12/05/1","tags":["Mailing List","Third Party Advisory"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AD2KIHHCUBQC2YYH3FJWAHI5BG3QETOH/","tags":["Mailing List"]},{"url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/P5LQS6VEI7VIZNC7QGQ62EOV45R5RJIR/","tags":["Mailing List"]},{"url":"https://security.gentoo.org/glsa/202401-04","tags":["Third Party Advisory"]},{"url":"https://support.apple.com/en-us/HT214031","tags":["Vendor Advisory"]},{"url":"https://support.apple.com/en-us/HT214032","tags":["Vendor Advisory"]},{"url":"https://support.apple.com/en-us/HT214033","tags":["Vendor Advisory"]},{"url":"https://support.apple.com/kb/HT214033","tags":["Vendor Advisory"]},{"url":"https://support.apple.com/kb/HT214034","tags":["Vendor Advisory"]},{"url":"https://support.apple.com/kb/HT214062","tags":["Vendor Advisory"]},{"url":"https://www.debian.org/security/2023/dsa-5575","tags":["Mailing List"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-42916","tags":["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 the out-of-bounds read","mappingType":"exploitation_technique","evidence":[{"from":"description","quote":"Processing web content may disclose sensitive information","start":157,"end":214}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"},{"id":"T1005","name":"Data from Local 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(NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-42916","provenance":"source"},{"date":"2023-11-30","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://docs.google.com/spreadsheets/d/1lkNJ0uQwbeC1ZTRrxdtuPLCIl7mlUreoKfSIgajnSyY/edit","provenance":"source"},{"date":"2023-12-04","kind":"kev","label":"Added to CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","provenance":"source"},{"date":"2023-12-04","kind":"euvd-exploited","label":"ENISA EUVD: exploited","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2023-47337","provenance":"source"}],"speed":{"daysToPublicExploit":null,"firstExploitFrom":null,"daysToKev":4},"priority":{"score":62.0,"factors":[{"name":"In a KEV catalog","points":35.0,"detail":"listed in CISA KEV and VulnCheck KEV"},{"name":"Recent KEV listing","points":0.0,"detail":"added 1065 days ago"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":19.43,"detail":"percentile 0.9716"},{"name":"Named in threat reports","points":0.0,"detail":"0 reports"},{"name":"Public exploit code","points":0.0,"detail":"none found"},{"name":"Mentioned in OTX pulses","points":3.0,"detail":"50 pulses"},{"name":"CVSS severity","points":4.55,"detail":"base score 6.5"},{"name":"End-of-life product","points":0.0,"detail":"supported or unknown"}]},"lineage":{"familyId":"fam-class-apple-ios-macos-cwe-125"}}