{"id":"CVE-2018-4386","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-4386","generatedAt":"2026-10-28T21:28:32.526Z","title":"Multiple memory corruption issues were addressed with improved memory handling.","description":"Multiple memory corruption issues were addressed with improved memory handling. This issue affected versions prior to iOS 12.1, tvOS 12.1, watchOS 5.1, Safari 12.0.1, iTunes 12.9.1, iCloud for Windows 7.8.","published":"2019-04-03T18:29:12.000Z","lastModified":"2026-06-17T01:58:54.000Z","status":"Modified","sourceIdentifier":"product-security@apple.com","cvss":{"version":"3.0","score":8.8,"severity":"HIGH","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},"cwe":["CWE-119"],"affected":["apple/safari","apple/iphone os","apple/tvos","apple/watchos","apple/icloud","apple/itunes"],"epss":{"score":0.06487,"percentile":0.93721,"date":"2026-10-27","history":[]},"kev":{"listed":false},"exploits":{"count":2,"verified":true,"firstPublished":"2018-11-29","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":47893,"kind":"exploit","title":"Sony Playstation 4 (PS4) < 6.72 - WebKit Code Execution (PoC)","url":"https://www.exploit-db.com/exploits/47893","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/hardware/webapps/47893.js","file":"exploits/hardware/webapps/47893.js","published":"2019-12-31","added":"2020-01-08","updated":"2020-01-08","author":"TJ Corley","type":"webapps","platform":"hardware","port":null,"verified":false,"codes":["CVE-2018-4386"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"https://github.com/Fire30/bad_hoist/tree/e26ca0d2dd3c34bfaa421249bd9486a5c0ee64c4"},{"edbId":45912,"kind":"exploit","title":"WebKit JSC - BytecodeGenerator::hoistSloppyModeFunctionIfNecessary Does not Invalidate the 'ForInContext' Object","url":"https://www.exploit-db.com/exploits/45912","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/multiple/dos/45912.js","file":"exploits/multiple/dos/45912.js","published":"2018-11-29","added":"2018-11-29","updated":"2018-11-29","author":"Google Security Research","type":"dos","platform":"multiple","port":null,"verified":true,"codes":["CVE-2018-4386"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"https://bugs.chromium.org/p/project-zero/issues/detail?id=1665"}]},"verdict":{"level":"urgent","text":"2 public exploits are published in Exploit-DB (verified) and the impact is high, while EPSS rates exploitation at 6.5%. Anyone can run this; patch or mitigate before the next change window and check exposed instances for signs of use."},"changes":[],"references":[{"url":"http://packetstormsecurity.com/files/155871/Sony-Playstation-4-Webkit-Code-Execution.html","source":"product-security@apple.com"},{"url":"https://support.apple.com/kb/HT209192","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/kb/HT209194","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/kb/HT209195","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/kb/HT209196","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/kb/HT209197","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/kb/HT209198","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"http://packetstormsecurity.com/files/155871/Sony-Playstation-4-Webkit-Code-Execution.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/kb/HT209192","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/kb/HT209194","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/kb/HT209195","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/kb/HT209196","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/kb/HT209197","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/kb/HT209198","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-4386","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."}