{"id":"CVE-2016-7835","aliases":["EUVD-2016-8684","GHSA-p8m4-qhm5-5gm6"],"status":"published","title":"Use-after-free vulnerability in H2O allows remote attackers to cause a denial-of-service (DoS) or...","description":"Use-after-free vulnerability in H2O allows remote attackers to cause a denial-of-service (DoS) or obtain server certificate private keys and possibly other information.","severity":{"version":"3.0","score":9.1,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","level":"critical","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.02227,"percentile":0.82846,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-416"],"published":"2017-06-09T16:00:00Z","modified":"2026-10-24T10:47:35Z","products":[{"vendor":"dena","product":"h2o"},{"vendor":"h2o","product":"h2o"},{"vendor":"h2o_project","product":"h2o"},{"vendor":"kazuho oku","product":"h2o"}],"references":[{"url":"http://www.securityfocus.com/bid/95061","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry","advisory"]},{"url":"https://github.com/h2o/h2o/issues/1144","tags":["x_refsource_CONFIRM","x_transferred","Patch","Third Party Advisory","fix"]},{"url":"https://jvn.jp/en/jp/JVN44566208/index.html","tags":["third-party-advisory","x_refsource_JVN","x_transferred","Third Party Advisory","VDB Entry","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-7835"},{"url":"https://github.com/advisories/GHSA-p8m4-qhm5-5gm6"}],"sources":{"cve":[{"id":"CVE-2016-7835","description":"Use-after-free vulnerability in H2O allows remote attackers to cause a denial-of-service (DoS) or obtain server certificate private keys and possibly other information.","status":"published","published":"2017-06-09T16:00:00Z","modified":"2024-08-06T02:04:56.138Z","updated_at":"2026-11-02T14:33:36.802481Z"}],"euvd":[{"id":"EUVD-2016-8684","description":"Use-after-free vulnerability in H2O allows remote attackers to cause a denial-of-service (DoS) or obtain server certificate private keys and possibly other information.","status":"published","published":"2017-06-09T16:00:00Z","modified":"2024-08-06T02:04:56Z","updated_at":"2026-11-03T02:22:31.946809Z"}],"ghsa":[{"id":"GHSA-p8m4-qhm5-5gm6","title":"Use-after-free vulnerability in H2O allows remote attackers to cause a denial-of-service (DoS) or...","description":"Use-after-free vulnerability in H2O allows remote attackers to cause a denial-of-service (DoS) or obtain server certificate private keys and possibly other information.","status":"published","published":"2022-05-13T01:10:47Z","modified":"2023-02-01T05:03:38Z","cvss":[{"version":"3.0","score":9.1,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","level":"critical"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T14:50:05.685198Z"}],"nvd":[{"id":"CVE-2016-7835","description":"Use-after-free vulnerability in H2O allows remote attackers to cause a denial-of-service (DoS) or obtain server certificate private keys and possibly other information.","status":"published","published":"2017-06-09T16:29:01.22Z","modified":"2026-06-17T00:53:34.747Z","cvss":[{"version":"3.0","score":9.1,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","level":"critical","assessor":"primary"},{"version":"2.0","score":6.4,"vector":"AV:N/AC:L/Au:N/C:P/I:N/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-416"],"updated_at":"2026-11-02T14:03:38.290327Z"}],"osv":[{"id":"CVE-2016-7835","description":"Use-after-free vulnerability in H2O allows remote attackers to cause a denial-of-service (DoS) or obtain server certificate private keys and possibly other information.","status":"published","published":"2017-06-09T16:29:01.22Z","modified":"2026-10-24T10:47:35.43587205Z","cvss":[{"version":"3.0","score":9.1,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H","level":"critical"}],"updated_at":"2026-11-02T15:44:03.171316Z"}]}}