{"id":"CVE-2016-4842","aliases":["EUVD-2016-5824","GHSA-958x-6cr2-9366"],"status":"published","title":"Cybozu Mailwise before 5.4.0 allows remote attackers to obtain information on when an email is read.","description":"Cybozu Mailwise before 5.4.0 allows remote attackers to obtain information on when an email is read.","severity":{"version":"3.0","score":4.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01586,"percentile":0.75766,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-200"],"published":"2017-04-20T18:00:00Z","modified":"2026-06-17T00:48:18Z","products":[{"vendor":"cybozu","product":"mailwise"}],"references":[{"url":"https://support.cybozu.com/ja-jp/article/9606","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory"]},{"url":"http://jvndb.jvn.jp/en/contents/2016/JVNDB-2016-000136.html","tags":["third-party-advisory","x_refsource_JVNDB","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"http://jvn.jp/en/jp/JVN02576342/index.html","tags":["third-party-advisory","x_refsource_JVN","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"http://www.securityfocus.com/bid/92460","tags":["vdb-entry","x_refsource_BID","x_transferred","Third Party Advisory","VDB Entry"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-4842"},{"url":"https://github.com/advisories/GHSA-958x-6cr2-9366"}],"sources":{"cve":[{"id":"CVE-2016-4842","description":"Cybozu Mailwise before 5.4.0 allows remote attackers to obtain information on when an email is read.","status":"published","published":"2017-04-20T18:00:00Z","modified":"2024-08-06T00:39:26.326Z","updated_at":"2026-11-02T14:33:35.149563Z"}],"euvd":[{"id":"EUVD-2016-5824","description":"Cybozu Mailwise before 5.4.0 allows remote attackers to obtain information on when an email is read.","status":"published","published":"2017-04-20T18:00:00Z","modified":"2024-08-06T00:39:26Z","updated_at":"2026-11-03T02:22:44.916959Z"}],"ghsa":[{"id":"GHSA-958x-6cr2-9366","title":"Cybozu Mailwise before 5.4.0 allows remote attackers to obtain information on when an email is read.","description":"Cybozu Mailwise before 5.4.0 allows remote attackers to obtain information on when an email is read.","status":"published","published":"2022-05-17T02:48:37Z","modified":"2023-01-27T05:06:23Z","cvss":[{"version":"3.0","score":4.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N","level":"medium"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:42:54.023332Z"}],"nvd":[{"id":"CVE-2016-4842","description":"Cybozu Mailwise before 5.4.0 allows remote attackers to obtain information on when an email is read.","status":"published","published":"2017-04-20T18:59:00.607Z","modified":"2026-06-17T00:48:18.933Z","cvss":[{"version":"3.0","score":4.3,"vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N","level":"medium","assessor":"primary"},{"version":"2.0","score":4.3,"vector":"AV:N/AC:M/Au:N/C:P/I:N/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-200"],"updated_at":"2026-11-02T14:03:37.619685Z"}]}}