{"id":"CVE-2018-4243","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-4243","generatedAt":"2026-10-28T21:56:21.094Z","title":"A buffer overflow in getvolattrlist allows attackers to execute arbitrary code in a privileged context via a crafted app.","description":"An issue was discovered in certain Apple products. iOS before 11.4 is affected. macOS before 10.13.5 is affected. tvOS before 11.4 is affected. watchOS before 4.3.1 is affected. The issue involves the \"Kernel\" component. A buffer overflow in getvolattrlist allows attackers to execute arbitrary code in a privileged context via a crafted app.","published":"2018-06-08T18:29:03.000Z","lastModified":"2026-06-17T01:58:39.000Z","status":"Modified","sourceIdentifier":"product-security@apple.com","cvss":{"version":"3.0","score":7.8,"severity":"HIGH","vector":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H"},"cwe":["CWE-119"],"affected":["apple/apple tv","apple/iphone os","apple/mac os x","apple/watchos"],"epss":{"score":0.18188,"percentile":0.9719,"date":"2026-10-27","history":[{"date":"2026-09-21","score":0.2586,"percentile":0.97929},{"date":"2026-09-22","score":0.1854,"percentile":0.97123}]},"kev":{"listed":false},"exploits":{"count":1,"verified":true,"firstPublished":"2018-06-06","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":44848,"kind":"exploit","title":"Apple macOS/iOS Kernel - Heap Overflow Due to Lack of Lower Size Check in getvolattrlist","url":"https://www.exploit-db.com/exploits/44848","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/multiple/dos/44848.c","file":"exploits/multiple/dos/44848.c","published":"2018-06-06","added":"2018-06-06","updated":"2018-06-07","author":"Google Security Research","type":"dos","platform":"multiple","port":null,"verified":true,"codes":["CVE-2018-4243"],"tags":"Heap Overflow","aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"https://bugs.chromium.org/p/project-zero/issues/detail?id=1564"}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 18.2%, higher than 97% of all known CVEs. Patch or mitigate before the next change window."},"changes":[{"kind":"epss","label":"EPSS jump","at":"2026-09-21T00:00:00.000Z","detail":{"to":0.2586,"from":0.1854,"percentile":0.97929},"summary":"EPSS moved from 18.5% to 25.9% probability of exploitation in the next thirty days."}],"references":[{"url":"http://www.securitytracker.com/id/1041027","tags":["Third Party Advisory","VDB Entry"],"source":"product-security@apple.com"},{"url":"https://bugs.chromium.org/p/project-zero/issues/detail?id=1564","tags":["Exploit","Issue Tracking","Third Party Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/HT208848","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/HT208849","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/HT208850","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/HT208851","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://www.exploit-db.com/exploits/44848/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"product-security@apple.com"},{"url":"http://www.securitytracker.com/id/1041027","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://bugs.chromium.org/p/project-zero/issues/detail?id=1564","tags":["Exploit","Issue Tracking","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/HT208848","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/HT208849","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/HT208850","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/HT208851","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/44848/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-4243","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."}