{"id":"CVE-2017-13863","url":"https://www.cyber-defence.io/tools/cve/CVE-2017-13863","generatedAt":"2026-10-29T01:51:20.967Z","title":"It allows man-in-the-middle attackers to track users by leveraging the transmission of client certificates.","description":"An issue was discovered in certain Apple products. iOS before 11 is affected. The issue involves the \"APNs\" component. It allows man-in-the-middle attackers to track users by leveraging the transmission of client certificates.","published":"2018-04-03T06:29:01.000Z","lastModified":"2026-06-17T01:05:18.000Z","status":"Modified","sourceIdentifier":"product-security@apple.com","cvss":{"version":"3.0","score":5.9,"severity":"MEDIUM","vector":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"},"cwe":["CWE-295"],"affected":["apple/iphone os"],"epss":{"score":0.00415,"percentile":0.35595,"date":"2026-10-27","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 (0.41%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://support.apple.com/HT208112","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/HT208112","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2017-13863","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."}