{"id":"CVE-2018-4441","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-4441","generatedAt":"2026-10-28T20:11:01.160Z","title":"A memory corruption issue was addressed with improved memory handling.","description":"A memory corruption issue was addressed with improved memory handling. This issue affected versions prior to iOS 12.1.1, tvOS 12.1.1, watchOS 5.1.2, Safari 12.0.2, iTunes 12.9.2 for Windows, iCloud for Windows 7.9.","published":"2019-04-03T18:29:16.000Z","lastModified":"2026-06-17T01:58:59.000Z","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":0.12706,"percentile":0.96243,"date":"2026-10-27","history":[{"date":"2026-09-21","score":0.11347,"percentile":0.9585},{"date":"2026-09-22","score":0.12706,"percentile":0.9608}]},"kev":{"listed":false},"exploits":{"count":2,"verified":true,"firstPublished":"2019-01-02","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":46522,"kind":"exploit","title":"Sony Playstation 4 (PS4) < 6.20 - WebKit Code Execution (PoC)","url":"https://www.exploit-db.com/exploits/46522","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/hardware/local/46522.md","file":"exploits/hardware/local/46522.md","published":"2019-03-08","added":"2019-03-11","updated":"2019-03-11","author":"Specter","type":"local","platform":"hardware","port":null,"verified":false,"codes":["CVE-2018-4441"],"tags":null,"aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"https://github.com/Cryptogenic/PS4-6.20-WebKit-Code-Execution-Exploit/tree/90979dd089ca5cbbc70e3549fb48792d3c69aab2"},{"edbId":46072,"kind":"exploit","title":"WebKit JSC - 'JSArray::shiftCountWithArrayStorage' Out-of-Bounds Read/Write","url":"https://www.exploit-db.com/exploits/46072","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/multiple/dos/46072.js","file":"exploits/multiple/dos/46072.js","published":"2019-01-02","added":"2019-01-02","updated":"2019-01-02","author":"Google Security Research","type":"dos","platform":"multiple","port":null,"verified":true,"codes":["CVE-2018-4441"],"tags":"Out Of Bounds","aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"https://bugs.chromium.org/p/project-zero/issues/detail?id=1685&desc=2"}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 12.7%, higher than 96% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"https://support.apple.com/kb/HT209340","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/kb/HT209342","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/kb/HT209343","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/kb/HT209344","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/kb/HT209345","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/kb/HT209346","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/kb/HT209340","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/kb/HT209342","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/kb/HT209343","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/kb/HT209344","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/kb/HT209345","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/kb/HT209346","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-4441","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."}