{"id":"CVE-2017-2501","url":"https://www.cyber-defence.io/tools/cve/CVE-2017-2501","generatedAt":"2026-10-28T22:19:11.057Z","title":"A race condition 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 10.3.2 is affected. macOS before 10.12.5 is affected. tvOS before 10.2.1 is affected. watchOS before 3.2.2 is affected. The issue involves the \"Kernel\" component. A race condition allows attackers to execute arbitrary code in a privileged context via a crafted app.","published":"2017-05-22T05:29:01.000Z","lastModified":"2026-06-17T01:16:20.000Z","status":"Modified","sourceIdentifier":"product-security@apple.com","cvss":{"version":"3.0","score":7,"severity":"HIGH","vector":"CVSS:3.0/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H"},"cwe":["CWE-362"],"affected":["apple/iphone os","apple/mac os x","apple/tvos","apple/watchos"],"epss":{"score":0.04189,"percentile":0.90881,"date":"2026-10-27","history":[{"date":"2026-09-21","score":0.09007,"percentile":0.95101},{"date":"2026-09-22","score":0.04189,"percentile":0.90484}]},"kev":{"listed":false},"exploits":{"count":1,"verified":true,"firstPublished":"2017-05-23","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":42054,"kind":"exploit","title":"Apple macOS/iOS Kernel - Use-After-Free Due to Bad Locking in Unix Domain Socket File Descriptor Externalization","url":"https://www.exploit-db.com/exploits/42054","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/multiple/dos/42054.c","file":"exploits/multiple/dos/42054.c","published":"2017-05-23","added":"2017-05-23","updated":"2017-12-16","author":"Google Security Research","type":"dos","platform":"multiple","port":null,"verified":true,"codes":["CVE-2017-2501","HT207798","HT207797"],"tags":"Use After Free (UAF)","aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"https://bugs.chromium.org/p/project-zero/issues/detail?id=1123"}]},"verdict":{"level":"urgent","text":"A public exploit is published in Exploit-DB (verified) and the impact is high, while EPSS rates exploitation at 4.2%. Anyone can run this; patch or mitigate before the next change window and check exposed instances for signs of use."},"changes":[],"references":[{"url":"http://www.securityfocus.com/bid/98468","tags":["Third Party Advisory","VDB Entry"],"source":"product-security@apple.com"},{"url":"http://www.securitytracker.com/id/1038484","tags":["Third Party Advisory","VDB Entry"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/HT207797","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/HT207798","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/HT207800","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/HT207801","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://www.exploit-db.com/exploits/42054/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"product-security@apple.com"},{"url":"http://www.securityfocus.com/bid/98468","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id/1038484","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/HT207797","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/HT207798","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/HT207800","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/HT207801","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/42054/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2017-2501","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."}