{"id":"CVE-2013-3954","url":"https://www.cyber-defence.io/tools/cve/CVE-2013-3954","generatedAt":"2026-10-27T18:48:39.900Z","title":"The posix_spawn system call in the XNU kernel in Apple Mac OS X 10.8.x does not properly validate the data for file actions and port actions, which allows local users to (1) cause a denial of service (panic) via a size value that is inconsistent with a…","description":"The posix_spawn system call in the XNU kernel in Apple Mac OS X 10.8.x does not properly validate the data for file actions and port actions, which allows local users to (1) cause a denial of service (panic) via a size value that is inconsistent with a header count field, or (2) obtain sensitive information from kernel heap memory via a certain size value in conjunction with a crafted buffer.","published":"2013-06-05T14:39:58.000Z","lastModified":"2026-06-16T23:56:05.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"2.0","score":6.9,"severity":"MEDIUM","vector":"AV:L/AC:M/Au:N/C:C/I:C/A:C"},"cwe":["CWE-20"],"affected":["apple/mac os x","apple/iphone os"],"epss":{"score":0.00416,"percentile":0.35648,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.42%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"http://antid0te.com/syscan_2013/SyScan2013_Mountain_Lion_iOS_Vulnerabilities_Garage_Sale_Whitepaper.pdf","tags":["Exploit"],"source":"cve@mitre.org"},{"url":"http://lists.apple.com/archives/security-announce/2013/Oct/msg00004.html","source":"cve@mitre.org"},{"url":"http://lists.apple.com/archives/security-announce/2013/Sep/msg00006.html","source":"cve@mitre.org"},{"url":"http://secunia.com/advisories/54886","source":"cve@mitre.org"},{"url":"http://support.apple.com/kb/HT5934","source":"cve@mitre.org"},{"url":"http://www.securitytracker.com/id/1029054","source":"cve@mitre.org"},{"url":"http://www.syscan.org/index.php/sg/program/day/2","source":"cve@mitre.org"},{"url":"http://antid0te.com/syscan_2013/SyScan2013_Mountain_Lion_iOS_Vulnerabilities_Garage_Sale_Whitepaper.pdf","tags":["Exploit"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.apple.com/archives/security-announce/2013/Oct/msg00004.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://lists.apple.com/archives/security-announce/2013/Sep/msg00006.html","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://secunia.com/advisories/54886","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://support.apple.com/kb/HT5934","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id/1029054","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.syscan.org/index.php/sg/program/day/2","source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2013-3954","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."}