{"id":"CVE-2015-6999","url":"https://www.cyber-defence.io/tools/cve/CVE-2015-6999","generatedAt":"2026-10-27T18:48:49.228Z","title":"The OCSP client in Apple iOS before 9.1 does not check for certificate expiry, which allows remote attackers to spoof a valid certificate by leveraging access to a revoked certificate.","description":"The OCSP client in Apple iOS before 9.1 does not check for certificate expiry, which allows remote attackers to spoof a valid certificate by leveraging access to a revoked certificate.","published":"2015-10-23T10:59:08.000Z","lastModified":"2026-06-17T00:31:44.000Z","status":"Modified","sourceIdentifier":"product-security@apple.com","cvss":{"version":"2.0","score":5,"severity":"MEDIUM","vector":"AV:N/AC:L/Au:N/C:N/I:P/A:N"},"cwe":["CWE-254"],"affected":["apple/iphone os"],"epss":{"score":0.01207,"percentile":0.68135,"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 (1.21%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"http://lists.apple.com/archives/security-announce/2015/Oct/msg00002.html","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"http://www.securityfocus.com/bid/77268","source":"product-security@apple.com"},{"url":"http://www.securitytracker.com/id/1033929","source":"product-security@apple.com"},{"url":"https://support.apple.com/HT205370","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"http://lists.apple.com/archives/security-announce/2015/Oct/msg00002.html","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securityfocus.com/bid/77268","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id/1033929","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/HT205370","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2015-6999","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."}