{"id":"CVE-2017-2428","url":"https://www.cyber-defence.io/tools/cve/CVE-2017-2428","generatedAt":"2026-10-28T21:57:34.825Z","title":"It allows remote HTTP/2 servers to have an unspecified impact via unknown vectors.","description":"An issue was discovered in certain Apple products. iOS before 10.3 is affected. macOS before 10.12.4 is affected. tvOS before 10.2 is affected. watchOS before 3.2 is affected. The issue involves nghttp2 before 1.17.0 in the \"HTTPProtocol\" component. It allows remote HTTP/2 servers to have an unspecified impact via unknown vectors.","published":"2017-04-02T01:59:02.000Z","lastModified":"2026-06-17T01:16:11.000Z","status":"Modified","sourceIdentifier":"product-security@apple.com","cvss":{"version":"3.0","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":[],"affected":["apple/iphone os","apple/mac os x","apple/tvos","apple/watchos"],"epss":{"score":0.02565,"percentile":0.85039,"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":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (2.56%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"http://www.securityfocus.com/bid/97146","tags":["Third Party Advisory","VDB Entry"],"source":"product-security@apple.com"},{"url":"http://www.securitytracker.com/id/1038138","source":"product-security@apple.com"},{"url":"https://github.com/nghttp2/nghttp2/releases/tag/v1.17.0","tags":["Third Party Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/HT207601","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/HT207602","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/HT207615","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"https://support.apple.com/HT207617","tags":["Vendor Advisory"],"source":"product-security@apple.com"},{"url":"http://www.securityfocus.com/bid/97146","tags":["Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"http://www.securitytracker.com/id/1038138","source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://github.com/nghttp2/nghttp2/releases/tag/v1.17.0","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/HT207601","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/HT207602","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/HT207615","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://support.apple.com/HT207617","tags":["Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2017-2428","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."}