{"id":"CVE-2018-4404","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-4404","generatedAt":"2026-10-29T03:57:46.611Z","title":"In iOS before 11.4 and macOS High Sierra before 10.13.5, a memory corruption issue exists and was addressed with improved memory handling.","description":"In iOS before 11.4 and macOS High Sierra before 10.13.5, a memory corruption issue exists and was addressed with improved memory handling.","published":"2019-01-11T18:29:03.000Z","lastModified":"2026-06-17T01:58:56.000Z","status":"Modified","sourceIdentifier":"product-security@apple.com","cvss":{"version":"3.1","score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-119"],"affected":["apple/iphone os","apple/mac os x"],"epss":{"score":0.1403,"percentile":0.96544,"date":"2026-10-28","history":[{"date":"2026-09-21","score":0.37523,"percentile":0.98511},{"date":"2026-09-22","score":0.13919,"percentile":0.96368}]},"kev":{"listed":false},"exploits":{"count":1,"verified":true,"firstPublished":"2018-12-14","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":45998,"kind":"exploit","title":"Safari - Proxy Object Type Confusion (Metasploit)","url":"https://www.exploit-db.com/exploits/45998","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/macos/remote/45998.rb","file":"exploits/macos/remote/45998.rb","published":"2018-12-14","added":"2018-12-14","updated":"2018-12-14","author":"Metasploit","type":"remote","platform":"macos","port":null,"verified":true,"codes":["CVE-2018-4404","CVE-2018-4233"],"tags":"Metasploit Framework (MSF)","aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"https://raw.githubusercontent.com/rapid7/metasploit-framework/cc7cb7302ef43478292f684f473fadb00f9b4344/modules/exploits/osx/browser/safari_proxy_object_type_confusion.rb"}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 14.0%, higher than 97% of all known CVEs. Patch or mitigate before the next change window."},"changes":[{"kind":"epss","label":"EPSS jump","at":"2026-09-22T00:00:00.000Z","detail":{"to":0.13919,"from":0.37523,"percentile":0.96368},"summary":"EPSS moved from 37.5% to 13.9% probability of exploitation in the next thirty days."},{"kind":"epss","label":"EPSS jump","at":"2026-09-21T00:00:00.000Z","detail":{"to":0.37523,"from":0.13919,"percentile":0.98511},"summary":"EPSS moved from 13.9% to 37.5% probability of exploitation in the next thirty days."}],"references":[{"url":"https://support.apple.com/HT208848%2C","source":"product-security@apple.com"},{"url":"https://support.apple.com/HT208849","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://www.exploit-db.com/exploits/45998/","tags":["Third Party Advisory","VDB Entry"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/HT208848%2C","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/HT208849","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/45998/","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-4404","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."}