{"id":"CVE-2023-32373","published":"2023-06-23T18:15:12Z","modified":"2026-06-17T05:58:42Z","title":"Apple Multiple Products WebKit Use-After-Free Vulnerability","vendor":"Apple","product":"Multiple Products","tier":"core","eol":null,"description":{"text":"A use-after-free issue was addressed with improved memory management. This issue is fixed in watchOS 9.5, tvOS 16.5, macOS Ventura 13.4, iOS 15.7.6 and iPadOS 15.7.6, Safari 16.5, iOS 16.5 and iPadOS 16.5. 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":"The vulnerability is a use-after-free flaw in WebKit, the web rendering engine used across multiple Apple products, including watchOS, tvOS, macOS, iOS, iPadOS, and Safari. An attacker can achieve arbitrary code execution by getting a user to process maliciously crafted web content, requiring network access and user interaction but no authentication.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T07:12:55Z"},"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":0.12172,"percentile":0.96149,"date":"2026-10-29","provenance":"source"},"kev":{"dateAdded":"2023-05-22","dueDate":"2023-06-12","ransomware":false,"requiredAction":"Apply updates per vendor instructions.","notes":"https://support.apple.com/HT213757, https://support.apple.com/HT213758, https://support.apple.com/HT213761, https://support.apple.com/HT213762, https://support.apple.com/HT213764, https://support.apple.com/HT213765; https://nvd.nist.gov/vuln/detail/CVE-2023-32373","provenance":"source"},"vulncheckKev":{"dateAdded":"2023-05-01","exploitedFirstSeen":"2023-05-01","ransomware":false,"evidence":[{"url":"https://docs.google.com/spreadsheets/d/1lkNJ0uQwbeC1ZTRrxdtuPLCIl7mlUreoKfSIgajnSyY/edit","date":"2023-05-01"},{"url":"https://support.apple.com/kb/HT213757","date":"2023-05-18"},{"url":"https://support.apple.com/kb/HT213758","date":"2023-05-18"},{"url":"https://support.apple.com/kb/HT213761","date":"2023-05-18"},{"url":"https://support.apple.com/kb/HT213762","date":"2023-05-18"},{"url":"https://support.apple.com/kb/HT213764","date":"2023-05-18"},{"url":"https://support.apple.com/kb/HT213765","date":"2023-05-18"},{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2023-05-22"},{"url":"https://ti.qianxin.com/uploads/2024/02/02/dcc93e586f9028c68e7ab34c3326ff31.pdf","date":"2024-02-02"}],"evidenceTotal":9,"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/202401-04","tags":["Third Party Advisory"]},{"url":"https://support.apple.com/en-us/HT213757","tags":["Release Notes","Vendor Advisory"]},{"url":"https://support.apple.com/en-us/HT213758","tags":["Release Notes","Vendor Advisory"]},{"url":"https://support.apple.com/en-us/HT213761","tags":["Release Notes","Vendor Advisory"]},{"url":"https://support.apple.com/en-us/HT213762","tags":["Release Notes","Vendor Advisory"]},{"url":"https://support.apple.com/en-us/HT213764","tags":["Release Notes","Vendor Advisory"]},{"url":"https://support.apple.com/en-us/HT213765","tags":["Release Notes","Vendor Advisory"]},{"url":"https://security.gentoo.org/glsa/202401-04","tags":["Third Party Advisory"]},{"url":"https://support.apple.com/en-us/HT213757","tags":["Release Notes","Vendor Advisory"]},{"url":"https://support.apple.com/en-us/HT213758","tags":["Release Notes","Vendor Advisory"]},{"url":"https://support.apple.com/en-us/HT213761","tags":["Release Notes","Vendor Advisory"]},{"url":"https://support.apple.com/en-us/HT213762","tags":["Release Notes","Vendor Advisory"]},{"url":"https://support.apple.com/en-us/HT213764","tags":["Release Notes","Vendor Advisory"]},{"url":"https://support.apple.com/en-us/HT213765","tags":["Release Notes","Vendor Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-32373","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 delivered to victim browsers","mappingType":"exploitation_technique","evidence":[{"from":"description","quote":"Processing maliciously crafted web content may lead to arbitrary code execution","start":206,"end":285}],"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: Attacker achieves arbitrary code execution directly","mappingType":"primary_impact","evidence":[{"from":"description","quote":"Processing maliciously crafted web content may lead to arbitrary code execution","start":206,"end":285}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2023-36617","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2023-36617","exploited":true,"exploitedSince":"2023-05-22","provenance":"source"},"exploits":[],"exploitSources":null,"exploitRefs":[],"flow":[{"stage":"exploitation","techniques":["T1189"],"provenance":"ai"},{"stage":"primary","techniques":["T1059"],"provenance":"ai"}],"timeline":[{"date":"2023-05-01","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV evidence)","url":"https://docs.google.com/spreadsheets/d/1lkNJ0uQwbeC1ZTRrxdtuPLCIl7mlUreoKfSIgajnSyY/edit","provenance":"source"},{"date":"2023-05-22","kind":"kev","label":"Added to CISA KEV","url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","provenance":"source"},{"date":"2023-05-22","kind":"euvd-exploited","label":"ENISA EUVD: exploited","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2023-36617","provenance":"source"},{"date":"2023-06-23","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-32373","provenance":"source"}],"speed":{"daysToPublicExploit":null,"firstExploitFrom":null,"daysToKev":null},"priority":{"score":63.4,"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 1277 days ago"},{"name":"Known ransomware use","points":0.0,"detail":"not known"},{"name":"EPSS percentile","points":19.23,"detail":"percentile 0.9615"},{"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":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"}}