{"id":"CVE-2018-6347","aliases":["EUVD-2018-18105","GHSA-95px-qh9x-29gf"],"status":"published","title":"An issue in the Proxygen handling of HTTP2 parsing of headers/trailers can lead to a denial-of...","description":"An issue in the Proxygen handling of HTTP2 parsing of headers/trailers can lead to a denial-of-service attack. This affects Proxygen prior to v2018.12.31.00.","severity":{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.0137,"percentile":0.72082,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-20","CWE-400"],"published":"2018-12-31T22:00:00Z","modified":"2026-11-05T08:07:03Z","products":[{"vendor":"facebook","product":"proxygen"},{"vendor":"proxygen_project","product":"proxygen"}],"references":[{"url":"https://github.com/facebook/proxygen/commit/223e0aa6bc7590e86af1e917185a2e0efe160711","tags":["x_refsource_MISC","x_transferred","Patch","Third Party Advisory","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2018-6347"},{"url":"https://github.com/advisories/GHSA-95px-qh9x-29gf"}],"sources":{"cve":[{"id":"CVE-2018-6347","description":"An issue in the Proxygen handling of HTTP2 parsing of headers/trailers can lead to a denial-of-service attack. This affects Proxygen prior to v2018.12.31.00.","status":"published","published":"2018-12-31T22:00:00Z","modified":"2025-05-06T15:53:44.034Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"adp"}],"cwes":["CWE-400"],"updated_at":"2026-11-02T14:35:05.619113Z"}],"euvd":[{"id":"EUVD-2018-18105","description":"An issue in the Proxygen handling of HTTP2 parsing of headers/trailers can lead to a denial-of-service attack. This affects Proxygen prior to v2018.12.31.00.","status":"published","published":"2018-12-31T22:00:00Z","modified":"2025-05-06T15:53:44Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-02T20:32:54.355989Z"}],"ghsa":[{"id":"GHSA-95px-qh9x-29gf","title":"An issue in the Proxygen handling of HTTP2 parsing of headers/trailers can lead to a denial-of...","description":"An issue in the Proxygen handling of HTTP2 parsing of headers/trailers can lead to a denial-of-service attack. This affects Proxygen prior to v2018.12.31.00.","status":"published","published":"2022-05-13T01:32:02Z","modified":"2025-05-06T18:30:28Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-20","CWE-400"],"updated_at":"2026-11-02T15:02:09.053127Z"}],"nvd":[{"id":"CVE-2018-6347","description":"An issue in the Proxygen handling of HTTP2 parsing of headers/trailers can lead to a denial-of-service attack. This affects Proxygen prior to v2018.12.31.00.","status":"published","published":"2018-12-31T22:29:00.687Z","modified":"2026-06-17T02:01:43.047Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"},{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":5,"vector":"AV:N/AC:L/Au:N/C:N/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-400","CWE-20"],"updated_at":"2026-11-02T14:04:52.056758Z"}],"osv":[{"id":"CVE-2018-6347","description":"An issue in the Proxygen handling of HTTP2 parsing of headers/trailers can lead to a denial-of-service attack. This affects Proxygen prior to v2018.12.31.00.","status":"published","published":"2018-12-31T22:29:00.687Z","modified":"2026-11-05T08:07:03.073168391Z","cvss":[{"version":"3.0","score":7.5,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-05T09:08:14.330889Z"}]}}